5 Werkstofftechnik
Filtern
Dokumenttyp
Sprache
- Englisch (347)
- Mehrsprachig (5)
- Deutsch (1)
- Russisch (1)
Referierte Publikation
- ja (354) (entfernen)
Schlagworte
- Additive manufacturing (21)
- EBSD (16)
- Additive Manufacturing (13)
- Microstructure (13)
- Corrosion (12)
- Residual stress (12)
- Transmission electron microscopy (12)
- Creep (11)
- Glass (9)
- Crystallization (8)
- Fatigue (7)
- Sintering (7)
- Steel (7)
- Aging (6)
- Carbon steel (6)
- High entropy alloy (6)
- High temperature corrosion (6)
- Mechanical properties (6)
- SEM (6)
- 3D printing (5)
- Bioactive glass (5)
- Degradation (5)
- Electron microscopy (5)
- High entropy alloys (5)
- Laser powder bed fusion (5)
- Metallic glasses (5)
- Neutron diffraction (5)
- Oxidation (5)
- Alumina (4)
- CALPHAD (4)
- Ceramics (4)
- EXAFS (4)
- Electron backscatter diffraction (4)
- Fracture (4)
- HIP (4)
- Impurities (4)
- Kikuchi patterns (4)
- Lattice parameters (4)
- Martensite (4)
- Metallic glass (4)
- Nanoindentation (4)
- Ontology (4)
- Plastic deformation (4)
- Plasticity (4)
- Scanning electron microscopy (4)
- Vickers indentation (4)
- X-ray diffraction (4)
- Zirconia (4)
- 3D-Printing (3)
- AISI 304L (3)
- AISI 316L (3)
- CCS (3)
- Calcination (3)
- Carbon fibres (3)
- Dislocation (3)
- Environmental stress cracking (ESC) (3)
- Finite element analysis (3)
- Fracture toughness (3)
- Full notch creep test (FNCT) (3)
- General Materials Science (3)
- Glass transition (3)
- Grain boundary (3)
- Hydrogen (3)
- Inconel 718 (3)
- Interfacial strength (3)
- Iron (3)
- Laser scanning microscopy (LSM) (3)
- Molecular dynamics (3)
- NMR spectroscopy (3)
- Nanoparticles (3)
- Nickel-based superalloys (3)
- Pattern matching (3)
- Phase-field simulation (3)
- Raman spectroscopy (3)
- Reproducibility (3)
- Self-healing (3)
- Single crystal (3)
- Stress intensity factor (3)
- Superalloy (3)
- TEM (3)
- Thermal expansion (3)
- Ti-6Al-4V (3)
- ToF-SIMS (3)
- X-ray refraction (3)
- 3D-printing (2)
- AGIL (2)
- Alloy design (2)
- Aluminum alloys (2)
- Atom probe tomography (2)
- Bacteria (2)
- Binder jetting (2)
- Bioactivity (2)
- Bioceramics (2)
- Bone regeneration (2)
- Bulk metallic glasses (2)
- CCUS (2)
- Calcium cobaltite (2)
- Ceramic (2)
- Characterization (2)
- Compositionally complex alloys (2)
- Computed Tomography (2)
- Computed tomography (2)
- Condensate (2)
- Coulomb explosion (2)
- Crack growth (2)
- Crack healing (2)
- Crack propagation (2)
- Crop protection products (2)
- Crystal orientation (2)
- Crystal plasticity (2)
- Damage (2)
- Deep Learning (2)
- Defects (2)
- Density-based Phase-Field Modelling (2)
- Densty-based Thermodynamics (2)
- Deuterium (2)
- Diffusion (2)
- Diopsid (2)
- Elastic constants (2)
- Environmental stress cracking (2)
- Foaming (2)
- Fractography (2)
- Fracture mechanics (2)
- GFRP (2)
- Geothermal (2)
- Glass ceramic (2)
- Glass-ceramic (2)
- Gold (2)
- Grain boundaries (2)
- Heat treatment (2)
- High-density polyethylene (2)
- High-entropy alloy (2)
- High-temperature corrosion (2)
- IN718 (2)
- Infrared spectroscopy (2)
- Internal friction (2)
- Interphase (2)
- Kikuchi diffraction (2)
- Kikuchi pattern (2)
- LPBF (2)
- LTCC (2)
- Laser Powder Bed Fusion (2)
- Lattice distortion (2)
- Layerwise slurry deposition (2)
- Low cycle fatigue (2)
- Lunar regolith (2)
- Machine Learning (2)
- Mars (2)
- Martensitic transformation (2)
- Mechanical Engineering (2)
- Mechanics of Materials (2)
- Microhardness (2)
- Microstrucrue Design (2)
- Microstructural characterization (2)
- Microstructure and texture (2)
- Microstructure evolution (2)
- Mobility (2)
- Modeling (2)
- Nanomaterials (2)
- Native oxide (2)
- Nickel alloys (2)
- Nickel-base superalloys (2)
- Ontologies (2)
- Orientation precision (2)
- Ostwald ripening (2)
- Oxyfuel (2)
- P92 (2)
- Permeability (2)
- Phase transformations (2)
- Phase-field (2)
- Polyethylene (2)
- Polymer (2)
- Preceramic polymer (2)
- Precipitation (2)
- Pressure-assisted sintering (2)
- Quasicrystal (2)
- Rapid solidification (2)
- Reaction-sintering (2)
- Relaxation (2)
- S-Phase (2)
- SIMS (2)
- Sample preparation (2)
- Selective laser melting (2)
- Shape-memory alloys (2)
- Shear bands (2)
- Short-range order (2)
- Silicon carbide (2)
- Silicon nanowires (2)
- Single-crystals (2)
- Slow crack growth (SCG) (2)
- Sorption (2)
- Spray drying (2)
- Stress corrosion cracking (2)
- Stress relaxation (2)
- Sulfidation (2)
- Sulphidation (2)
- Superalloys (2)
- Superconducting magnet (2)
- Surface treatments (2)
- Tempered martensite-ferritic steel (2)
- Tensile properties (2)
- Texture (2)
- Thermodynamics (2)
- Thermoelectric properties (2)
- Thermography (2)
- Toughness (2)
- Transmission electron microscopy (TEM) (2)
- Viscosity (2)
- Water content (2)
- Water speciation (2)
- Wetting (2)
- X-ray absorption spectroscopy (2)
- X-ray computed tomography (CT) (2)
- 12%Cr steel (1)
- 316L (1)
- 316L stainless steel (1)
- 3D etching (1)
- 3D metallography (1)
- 3D-Metallographie (1)
- 3D-finite element modeling (1)
- 4-Dimensional scanning transmission (1)
- 9-12%Cr steel (1)
- Abrasion (1)
- Accelerated temporal integration (1)
- Accessible (1)
- Advanced high strength steels (1)
- Ageing (1)
- Aggressive environments (1)
- Al alloys (1)
- Al-Cu alloy (1)
- Al-Cu binary alloy system (1)
- Al-Cu-Li-alloy (1)
- Al2O3 (1)
- Alcium alkali phosphate (1)
- Alkali aluminosilicate glasses (1)
- Alkali and alkaline earth silicate and borate glass (1)
- Alloy (1)
- Alloy Safety (1)
- Alloy microstructure (1)
- Alloys (1)
- Alloys' Safety (1)
- Alumina coatings (1)
- Aluminium alloys (1)
- Aluminosilicate glasses (1)
- Aluminum Alloy Aging (1)
- Aluminum alloy (1)
- Amorphization (1)
- Analytical scanning electron microscopy (1)
- Angle measurement (1)
- Approximant (1)
- Aquifer fluid (1)
- Artificial weathering (1)
- Atomistic Simulation (1)
- Atomistic simulations (1)
- Austenite-to-martensite phase transformation (1)
- Austenitic alloys (1)
- Austenitic stainless steel (1)
- Austenitic steel 316L (1)
- Automated Bragg angle determination (1)
- Automated analysis (1)
- Automated image analysis (1)
- BTEX (1)
- Bacterial attachment (1)
- Batch reactions (1)
- Behmite (1)
- Biaxial strength (1)
- Bimodal distribution (1)
- Binder Jetting (1)
- Binders/binding (1)
- Bio Ceramic (1)
- Bio Ceramics (1)
- Bio active ceramic (1)
- Bioactive Glass (1)
- Bioactive bone grafting material (1)
- Bioactive glass scaffold (1)
- Biodiesel (1)
- Biogeochemical cycling (1)
- Biogeochemistry (1)
- Biomineralisation (1)
- Biopolymer (1)
- Biphasic calcium phosphate (1)
- Bitter technique (1)
- Bone marrow-derived mesenchymal stem cell (1)
- Borate (1)
- Borosilicate glass (1)
- Bragg angles (1)
- Brass (1)
- Bravais lattice (1)
- Bravais lattices (1)
- Brinell hardness (1)
- Brittle fracture (1)
- Brownian motion (1)
- Bruchflächen (1)
- Bubble formation (1)
- Burst (1)
- C. lap-shear (1)
- CALPHAD database analysis (1)
- CCUS, supercritical/dense phase CO2, carbon steels, martensitic steel, superaustenite steel, droplet corrosion (1)
- CFRP (1)
- CKAN (1)
- CO2 (1)
- CO2 corrosion (1)
- CO2 pipeline transport (1)
- CO2 quality (1)
- CO2 separation membranes (1)
- Calcium Cobaltite (1)
- Calcium alkali orthophosphate materials (1)
- Calculated intrinsic fracture toughness (1)
- Carbide phase NbC (1)
- Carbon Fiber Reinforced Plastics (1)
- Carbon Fibre (1)
- Carbon capture (1)
- Carbon capture and storage (1)
- Carbon capture storage (1)
- Carbon capture, utilization and storage technology (1)
- Carbon dioxide (1)
- Carbon nanotubes (1)
- Casing (1)
- Cavitation (1)
- Cellular substructure (1)
- Cellulose (1)
- Cement (1)
- Cement-based materials (1)
- Ceramic multilayers (1)
- Cerium oxide (1)
- Chalcogenides (1)
- Characterisation (1)
- Chemically complex alloy (1)
- Chemo-mechanical coupling (1)
- Chemometrics (1)
- Chrystal orientation (1)
- Classification (1)
- Clay ISRU (1)
- Co-firings (1)
- Coating (1)
- Cobald based alloy (1)
- Coefficient of thermal expansion (1)
- Composite recycling (1)
- Compositionally complex alloy (1)
- Concrete (1)
- Concrete 3D-printing (1)
- Condensed Matter Physics (1)
- Confined catalyst (1)
- Contact angle (1)
- Contact fatigue (1)
- Contact mechanics (1)
- Continnum damage model (1)
- Cooling rate (1)
- Coordinate measurement machine (1)
- Copper vacancies (1)
- Corrosion costs (1)
- Corrosion fatigue (1)
- Corrosion pits (1)
- Corrosion protection (1)
- Corrosion resistance (1)
- CrCoNi (1)
- CrMnFeCoNi (1)
- CrN/NbN (1)
- Crack arrest (1)
- Crack evolution (1)
- Crack growth in air (1)
- Crack initiation (1)
- Crack opening displacement (1)
- Crack tip opening displacement (1)
- Cracks (1)
- Craze-crack mechanism (1)
- Craze–crack mechanism (1)
- Creation-relaxation algorithm (1)
- Creep behavior (1)
- Creep mechanisms (1)
- Creep strength (1)
- Creep under thermal cycling (1)
- Creep-fatigue (1)
- Creep-fatigue interaction (1)
- Cross-sectioning (1)
- Crosslinking (1)
- Cryogenic (1)
- Cryogenic cycling (1)
- Crystal Texture (1)
- Crystal growth (1)
- Crystal growth velocity (1)
- Crystal lattice period (1)
- Crystal morphology (1)
- Crystalline defects (1)
- Crystallographic texture (1)
- Cupriavidus metallidurans (1)
- Cuttlefish (1)
- Cyclic softening (1)
- Cyclic steam oxidation (1)
- Cytocompatibility (1)
- D. aging (1)
- D. creep D. viscoelasticity (1)
- DCB (1)
- DCB geometry (1)
- Data Interoperability (1)
- Data analysis (1)
- Data infrastructures (1)
- Data mapping (1)
- Data processing (1)
- Datenbank (1)
- Debinding (1)
- Debonding (1)
- Defect population (1)
- Defects engineering (1)
- Deformation (1)
- Deformation mechanisms (1)
- Degradation signatures (1)
- Density-based Thermodynamics (1)
- Density-based model (1)
- Dental (1)
- Deposition microstructure (1)
- Design of experiment (1)
- Desorption (1)
- Destabilization (1)
- Dielectric breakdown (1)
- Dielectric properties (1)
- Diesel (1)
- Diesel Fuel (1)
- Differential scanning calorimetry (1)
- Differential scanning calorimetry (DSC) (1)
- Diffraction (1)
- Diffraction Enhanced Imaging (1)
- Diffraction contrast (1)
- Digital image correlation (1)
- Digital representations (1)
- Digital workflows (1)
- Digitalization (1)
- Digitalizations (1)
- Dimensional mismatch of crystalline lattice periods (misfit) (1)
- Directional grain growth (1)
- Dislocation avalanches (1)
- Disorientation (1)
- Distributed fiber optic sensing (1)
- Domain Ontology Development (1)
- Double notched creep specimen (1)
- Dry preparation (1)
- Drywood termite (1)
- Ductile iron (1)
- Dwell periods (1)
- Dwell times (1)
- Dynamic recrystallization (1)
- EFTEM (1)
- EN AW-2618A (1)
- Early oxidation (1)
- Early stages (1)
- Early sulfidation (1)
- Efficiency (1)
- Elastic energy (1)
- Elastic microstructure (1)
- Elastic modulus (1)
- Elastic properties (1)
- Elasticity (1)
- Electric conductivity (1)
- Electrical insulators (1)
- Electrical resistance (1)
- Electrochemical characterisation (1)
- Electrochemical impedance spectroscopy (1)
- Electron back-scattered diffraction (1)
- Electron backscattered diffraction (1)
- Electron beam-induced charging (1)
- Electron beam-induced fragmentation (1)
- Electron diffraction (1)
- Electron energy (1)
- Electron microscopy, transmission (1)
- Electronic (1)
- End of life (1)
- Endothelial progenitor cell (1)
- Energy distribution (1)
- Environment (1)
- Environmental Stress Cracking (1)
- Environmentally assisted cracking (1)
- Epitaxial films (1)
- Epoxy (1)
- Epoxy Resin (1)
- Epoxy resin (1)
- Equilibrium relaxation (1)
- Eutectic (1)
- Expanding cavity model (1)
- Experimental and numerical techniques (1)
- Explosive welding (1)
- Exposed metal sites (1)
- FAIR (1)
- FAIR Data Management (1)
- FAIR research data management (1)
- FIB Tomography (1)
- FSDC (1)
- Fabrication (1)
- Faceting (1)
- Facilitated activation (1)
- Failure mechanisms (1)
- Failure rate (1)
- Fatigue Testing (1)
- Fatigue crack propagation stages (1)
- Fatigue damage (1)
- Fatigue performance (1)
- Fatigue striations (1)
- Fatigue testing (1)
- Fe-Mn steels (1)
- Femtosecond laser (1)
- Ferritic steels (1)
- Ferritic–martensitic steel (1)
- Ferrous phosphate hydrate (1)
- Fiber-matrix interface (1)
- Fiber/matrix bond (1)
- Fibre reinforced plastic (1)
- Fibre/matrix bond (1)
- Fibre/matrix bonding (1)
- Filters (1)
- Finite element method (1)
- Finland (1)
- Firing (1)
- First derivative (1)
- Flowability (1)
- Four-point bending test (1)
- Fourier series (1)
- Fracture surface analysis (1)
- Fracture surface energy (1)
- Fracture surfaces (1)
- Fraktographie (1)
- Freeze casting (1)
- Fresnoite (1)
- Friction (1)
- Friction Stir Welding (1)
- Friction stir processing (1)
- Frozen state photopolymerization (1)
- Fuel sorption (1)
- Full Notch Creep Test (1)
- Full notch creep test (1)
- Fullerite (1)
- Fungi (1)
- GD-OES (1)
- GMR (1)
- GMR sensors (1)
- Gefügeanalyse (1)
- Gefügerekonstruktion (1)
- General Computer Science (1)
- General Engineering (1)
- Glass Ceramic (1)
- Glass capillaries (1)
- Glass crystallization stress (1)
- Glass fiber reinforced polymers (1)
- Glass fiber-epoxy composites (1)
- Glass fibre (1)
- Glass forming (1)
- Glass forming melts (1)
- Glass manufacturing (1)
- Glass powder (1)
- Glass-ceramics (1)
- Glass-ceramics definition (1)
- Global stability criterion (1)
- Gnomonic projections (1)
- Grade S960QL steel (1)
- Gradient-enhanced fatigue model (1)
- Grain Boundary (1)
- Grain Boundary Corrosion (1)
- Grain Boundary Phase Diagram (1)
- Grain Boundary Segregation (1)
- Grain Boundary Spinodal (1)
- Grain boundary engineering (1)
- Grain boundary oxidation (1)
- Grain boundary phase diagram (1)
- Grain boundary precipitates (1)
- Grain boundary structure (1)
- Grain boundary thermodynamics (1)
- Grain growth (1)
- Grain structure (1)
- Granules (1)
- Graphite (1)
- Growth kinetics (1)
- Growth rate (1)
- Hausner ratio (1)
- Heat accumulation (1)
- Heat-resistant nickel alloys (1)
- Hertzian cracks (1)
- Hierarchical microstructure (1)
- Hierarchical microstructure Premartensite (1)
- Hierarchical porosities (1)
- High - temperature (1)
- High Entropy Alloy (1)
- High Entropy Alloys (1)
- High alloyed steel (1)
- High density polyethylene (1)
- High interstitial austenitic steel (1)
- High pressure (1)
- High temperature nickel-based eutectic alloys (1)
- High temperature oxidation (1)
- High temperatures (1)
- High-Entropy Alloys (1)
- High-Entropy Materials (1)
- High-entropy alloys (1)
- High-strength steel (1)
- High-temperature oxidation (1)
- High-temperature properties (1)
- High-voltage testing (1)
- High‐temperature corrosion (1)
- Hipims (1)
- Homogenization (1)
- Hot pressing (1)
- Hot stage microscopy (1)
- Hydrogel (1)
- Hydrogen diffusivity (1)
- Hydrogen storage (1)
- Hydrothermal Ageging (1)
- Hydrous glass (1)
- Hygrothermal (1)
- IASCC (1)
- IN 718 (1)
- ISRU (1)
- Impact damage (1)
- Impact wear (1)
- In situ diffraction (1)
- In situ tensile test (1)
- In situ thermal-annealing experiment (1)
- In-situ ED-XRD (1)
- In-situ Process Monitoring (1)
- In-situ SEM micro shear deformation (1)
- In-situ composites (1)
- In-situ diffraction (1)
- In-situ process monitoring (1)
- In-vivo (1)
- Incipient plasticity (1)
- Inclusion cluster (1)
- Inclusion size (1)
- Inconel 625 (1)
- Inconel 686 (1)
- Incremental lifetime models (1)
- Indentation (1)
- Indentation fracture toughness (1)
- Industrial and Manufacturing Engineering (1)
- Infrared nano AFM (1)
- Inkjet (1)
- Inter layer time (1)
- Interdiffusion (1)
- Interfacial Strength (1)
- Interfacial anisotropy (1)
- Interfacial free energy (1)
- Interfacial shear strength (1)
- Interlaboratory comparability (1)
- Intermetallic (1)
- Intermittent microplasticity (1)
- Intermodulation AFM (1)
- Internal Sulfidation (1)
- Internal Surfaces (1)
- Internal oxidation (1)
- Internal stresses (1)
- Interoperable (1)
- Intrinsic stress (1)
- Invar (1)
- Ion beam erosion Sectioning (1)
- Ionic porosity (1)
- Iron meteorite (1)
- Irradiation (1)
- Isostatic hot pressing (HIP) (1)
- JMAK model (1)
- Joints/joining (1)
- KCl (1)
- KI (1)
- Kernel average misorientation (1)
- Keywords: Poly(ether ether ketone) (1)
- Kikuchi bands (1)
- Knowledge Graph (1)
- Knowledge Representation (1)
- Knowledge graphs (1)
- Knowledge representation (1)
- LIBS (1)
- LSD print (1)
- Laboratory X-ray diffraction (1)
- Laser (1)
- Laser Powder Bed Fusion (LPBF) (1)
- Laser ablation in liquid (1)
- Laser beam melting (1)
- Laser beam melting (LBM) (1)
- Laser cladding (1)
- Laser powder-based directed energy deposition (1)
- Lattice distortions (1)
- Lattice misfit (1)
- Lattice parameter determination (1)
- Lattice point density (1)
- Lattice rotation (1)
- Lattice structures (1)
- Laves phase (1)
- Layered manganese oxide (1)
- Layering misalignment (1)
- Li-ion battery (1)
- Light curing (1)
- Lindemann criterion (1)
- Linear elastic fracture mechanics (1)
- Linked open data (1)
- Liquid Metal Embrittlement (1)
- Liquid metal embrittlement (1)
- Liquid phase sintering (1)
- Liquid-metal embrittlement (1)
- Log-normal distribution (1)
- Long-term aging (1)
- Long-term calculation (1)
- Long-term storage (1)
- Lorenz transmission electron microscopy (1)
- Low carbon steel (1)
- Low expansion (1)
- Low strain (1)
- Low-cycle fatigue (1)
- Low-loading (1)
- MGS-1 regolith simulant (1)
- MOF-74 (1)
- MOUSE (1)
- Machine learning (1)
- Magmatic and hydrothermal processes (1)
- Magnetic domain distribution (1)
- Magnetic shape memory (1)
- Magnetic stray field (1)
- Magnetic stray fields (1)
- Magnetomechanical effect (1)
- Martensitic steels (1)
- Martensitic structure (1)
- Mass transport (1)
- Master curve (1)
- Material degradation (1)
- Material failure (1)
- Material modeling (1)
- Materials Modelling (1)
- Materials Testing (1)
- Materials informatics (1)
- Materials science (1)
- Materials science and engineering (1)
- Matrix residual stress (1)
- Mean atomic number (1)
- Mean-field modelling (1)
- Mechanical anisotropy (1)
- Mechanical behavior (1)
- Mechanical deformation (1)
- Medium Entropy Alloys (1)
- Medium entropy alloys (1)
- Melt pool boundary (1)
- Melting (1)
- Meta material (1)
- Metal Magnetic Memory (1)
- Metal additive manufacturing (1)
- Metal and alloys (1)
- Metal magnetic memory (1)
- Metallic Glass (1)
- Metallic materials (1)
- Methodology (1)
- Micro-shrinkages (1)
- Microplastic stress (1)
- Microplastics (1)
- Microspine (1)
- Microstructur (1)
- Microstructural changes of a Fe Si alloy (1)
- Microstructural evolution (1)
- Microstructure Design (1)
- Microstructure analysis (1)
- Microstructure, γ/γ' misfit (1)
- Microstrucure reconstruction (1)
- Microwave technology (1)
- Milling (1)
- Miniature specimens (1)
- Mis-match (1)
- Misfitting precipitate (1)
- Misorientation (1)
- Mixed Ca-K-Na phosphates (1)
- Mixed conductors (1)
- Mixed-linkers (1)
- Mn-oxides (1)
- Model (1)
- Moisture (1)
- Molten salt (1)
- Moon (1)
- Multiaxial deformation (1)
- Multilayer (1)
- Multilayer ceramic technology (1)
- Multilayers (1)
- Multiple cracks (1)
- NGS (1)
- Na and K rhenanites (1)
- Nano-composite (1)
- Nano-powder (1)
- Nano-scratch test (1)
- Nanocomposites (1)
- Nanocrystalline alloys (1)
- Nanocrystalline structure (1)
- Nanoelectromechanical systems (NEMS) (1)
- Nanoparticle structure (1)
- Nanopowder (1)
- Nanoribbons (1)
- Nanoscale multilayers (1)
- Nanostructure quantification (1)
- Natural (1)
- Natural silver wires (1)
- Nb3Sn (1)
- Near Infrared Spectroscopy (1)
- Neutron Diffraction (1)
- NiMaGa (1)
- NiTi (1)
- Nickel-base alloy (1)
- Niobium alloying (1)
- Nitride (1)
- Non-destructive Materials (1)
- Non-metallic inclusions (1)
- Non-serrated inhomogeneous flow (1)
- Notch (1)
- Nucleation (1)
- Number density (1)
- Nydrogen melting (1)
- Online Process Monitoring (1)
- Optical and Magnetic Materials (1)
- Optical centrifugation (1)
- Optical criterion of brittleness (1)
- Optical tweezers (1)
- Ordered/disordered structures (1)
- Ordering (1)
- Orientation (1)
- Orientation refinement (1)
- Orientation relationship (1)
- Orowan Mechanism (1)
- Osteogenesis (1)
- Oxidation protection (1)
- Oxide (1)
- Oxide coatings (1)
- Oxygen evolution reaction (1)
- PBF-LB/M/316L (1)
- PE-HD Sorption (1)
- PLS-DA (1)
- PV modules (1)
- Packaging (1)
- Parabolic flight (1)
- Parametric modeling (1)
- Particle morphology (1)
- Particle size (1)
- Particle-bed binder jetting (1)
- Passive components and circuits (1)
- Permittivity reduction (1)
- Phase Diagram (1)
- Phase diagram (1)
- Phase field crystal (1)
- Phase field method (1)
- Phase field model (1)
- Phase separation (1)
- Phase stability (1)
- Phase transformation (1)
- Phase-Field Simulations (1)
- Phase-field model (1)
- Phase-field modelling (1)
- Phosphate (1)
- Photocleavable organosilanes (1)
- Photopolymer composites (1)
- Phototrophs (1)
- Photovoltaic modules (1)
- Physical aging (1)
- Pipeline (1)
- Pipeline network (1)
- Pitting (1)
- Pitting corrosion (1)
- Plasma imaging (1)
- Plasma nanocoatings (1)
- Plasma spray (1)
- Plasmon enhancement (1)
- Platinum-group-metals (1)
- Polymer analysis/characterization (1)
- Polymer composite (1)
- Polymer-matrix composites (PMC) (1)
- Polymeric Materials (1)
- Polymer–matrix composites (1)
- Polyolefins (1)
- Polypropylene (1)
- Polystyrene (1)
- Polyurethane (1)
- Porcelain (1)
- Pore (1)
- Pores (1)
- Porosification (1)
- Porosity (1)
- Porous materials (1)
- Positron annihilation spectroscopy (1)
- Powder bed additive manufacturing (1)
- Powder diffraction (1)
- Powder flow (1)
- Powder processing (1)
- Powder rheology (1)
- Power factor (1)
- Power law (1)
- Precipitate shape (1)
- Pressure assisted sintering (1)
- Preventive strategies (1)
- Principal stress (1)
- Principal stress components (1)
- Printing (1)
- Process development (1)
- Processing window (1)
- Production scatter (1)
- Projection center (1)
- Projekt AGIL - Alterung additiv gefertigter metallischer Materialien und Komponenten (1)
- Properties (1)
- Pseudosymmetry (1)
- Pultruded fiber rods (1)
- Radon transform (1)
- Reaction Sintering (1)
- Real-time deformation (1)
- Real-time qPCR (1)
- Recommendations (1)
- Recycling (1)
- Reference data (1)
- Refractory alloy (1)
- Refractory high entropy alloys (1)
- Refractory superalloys (1)
- Regolith (1)
- Reheating (1)
- Rejuvenation (1)
- Relaxation fatigue (1)
- Reliability (1)
- Residual Stress (1)
- Residual Stresses (1)
- Residual strains (1)
- Residual stresses (1)
- Resistance spot welding (1)
- Resonance testing (1)
- Reusable data (1)
- Review (1)
- Roughness (1)
- Round Robin (1)
- S-phase (1)
- SDC (1)
- SEM micrography (1)
- SLM (1)
- SO2 (1)
- STEM (1)
- Safety (1)
- Safety assessment (1)
- Samarium doped ceria (1)
- Sample holder (1)
- Sand blasting (1)
- Sandwich (1)
- Scaffold geometry (1)
- Scaffolds (1)
- Scale-dependent behavior (1)
- Scan strategies (1)
- Scanning acoustic microscopy (SAM) (1)
- Scanning transmission electron microscopy (STEM) (1)
- Scarf joint (1)
- Scavenging effect of iron (1)
- Schadensanalyse (1)
- Schwingstreifen (1)
- Scratches (1)
- Segregation (1)
- Segregation engineering (1)
- Selective Laser Melting (1)
- Selective laser melting (SLM) (1)
- Self-Assembly (1)
- Self-organization (1)
- Semantic Data Integration (1)
- Semantic Interoperability (1)
- Semantic Web Technologies (1)
- Semantic data integration (1)
- Semantic interoperability (1)
- Semantic web (1)
- Serial sectioning (1)
- Serienschnitte (1)
- Shadowgraphy (1)
- Shape memory alloy (1)
- Shape memory alloys (1)
- Shear (1)
- Shear load (1)
- Shear modulus (1)
- Shear strain (1)
- Shear testing (1)
- Shear thinning (1)
- Shear-band cavitation (1)
- Shear-band structure (1)
- Short range order (1)
- Short-beam strength (1)
- Silicate glass (1)
- Silicate glass-ceramics (1)
- Silicoborate glasses (1)
- Silicon Carbide (1)
- Silicon release (1)
- Silver metallization paste (1)
- Simulation (1)
- Simulation of concrete (1)
- Single crystal Ni-Base superalloys (1)
- Single fiber pull-out test (1)
- Single-Crystal (1)
- Single-crystal (1)
- Sintering additive (1)
- Sinus floor augmentation (1)
- Size effect (1)
- Slip localization (1)
- Slow crack growth (1)
- Slurry optimization (1)
- Small-angle scattering (1)
- Small-scale (1)
- Smart materials (1)
- Smectite (1)
- Soda lime silicate glass (1)
- Soda-lime silicate glass (1)
- Soda-lime-silica (1)
- Soda-lime-silica glass (1)
- Sodium ion batteries (1)
- Softening temperature (1)
- Soil (1)
- Sol-gel coating (1)
- Solar panels (1)
- Solid-State-Synthesis (1)
- Solid-state-synthesis (1)
- Solubility (1)
- Space (1)
- Spar cap design (1)
- Specimen geometry (1)
- Spinodal decomposition (1)
- Split-vacancy defect complexes (1)
- Stable crack growth (1)
- Stainless steel (1)
- Standardisation (1)
- Statistics (1)
- Steam oxidation resistance (1)
- Steel P92 (1)
- Steel alloy (1)
- Steels (1)
- Stereoscopy (1)
- Strain (1)
- Strain difference (1)
- Strain energy (1)
- Strength (1)
- Stress distribution (1)
- Stress intensity (1)
- Stress-corrosion (1)
- Stress-strain behavior (1)
- Stress-strain-behavior (1)
- Structural composites (1)
- Structural defects (1)
- Structural dynamics (1)
- Structural health monitoring (1)
- Structural steel (1)
- Subcritical crack growth (1)
- Sulfiding (1)
- Superalloy single crystals (1)
- Supersaturation (1)
- Support configurations (1)
- Support vector machines (1)
- Surface crystallization (1)
- Surface elasticity (1)
- Surface energy (1)
- Surface modification (1)
- Surface nucleation (1)
- Surface roughness (1)
- Surface stress (1)
- Swept wavelength interferometry (1)
- Symmetric dwell periods (1)
- Synchrotron X-ray diffraction (1)
- Synchrotron micro-tomography (1)
- Synchrotron radiations (1)
- Synthesis (1)
- T1 precipitate (1)
- TIG-welding (1)
- Temperature dependence (1)
- Tensile Test Ontology (1)
- Tensile strength (1)
- Tensile testing (1)
- Tensile tests (1)
- Tetragonal distortion (1)
- Tetragonality (1)
- Thermal Cycling (1)
- Thermal cycling (1)
- Thermal desorption mass spectrometry (1)
- Thermo-mechanical loading (1)
- Thermobimetal (1)
- Thermoelectric oxide (1)
- Thermoelectric oxides (1)
- Thermoelectrics (1)
- Thermomechanical fatigue (1)
- Thermoplastic (1)
- Thermoplastic forming (1)
- Thermoplastic matrix (1)
- Thermoplastic prepreg (1)
- Thermoset composition (1)
- Thermosetting resin (1)
- Thickening (1)
- Thin films (1)
- Thiol-ene click chemistry (1)
- Three-dimensional Bone tissue engineering (1)
- Three-dimensional tomographies (1)
- Titanium (1)
- Titanium oxide (1)
- Topography (1)
- Transformer (1)
- Transmission Kikuchi diffraction (1)
- Transmission electron microscope (TEM) (1)
- Transmittance (1)
- Transparency (1)
- Transparent ceramic (1)
- Tribology (1)
- Tricalcium Phosphate (1)
- Triply Periodical Minimal Surface (1)
- Tungsten carbide (1)
- Tungsten-Rhenium (1)
- Turbine disk (1)
- Twinning (1)
- Two-photon-polymerization (1)
- UV-irradiation (1)
- Ultrasonic assited machining (1)
- Ultrasound (1)
- Under cyclic loading (1)
- Unidirectional composites (1)
- Upconversion (1)
- Utilization, and storage (CCUS) technology (1)
- Vickers hardness (1)
- Viscoelastic model (1)
- Viscoplasticity (1)
- Viscous sintering (1)
- Visual ontology development (1)
- Visualization (1)
- Vivianite (1)
- Vocabulary providers (1)
- Volatiles from thermosets (1)
- Volume changes (1)
- Volume fraction (1)
- Volume specific surface area (1)
- WAXS (1)
- Water (1)
- Water Diffusion (1)
- Water droplet erosion resistance (1)
- Water in glass (1)
- Weibull distribution (1)
- Welding (1)
- Wet chemical etching (1)
- Whole-chain CCS scenario (1)
- Work of adhesion (1)
- X-ray Diffraction (1)
- X-ray diffraction analysis (1)
- X-ray tomographic (1)
- X-ray-diffraction (1)
- XPCS (1)
- XRD (1)
- Young's modulus (1)
- Young`s modulus (1)
- Young´s modulus (1)
- Yttria stabilized zirconia (1)
- Zinc oxide (1)
- Zirconia-toughened alumina (1)
- ZnO (1)
- arbidic austempered ductile iron (1)
- battery aging mechanism (1)
- current collector corrosion (1)
- depth profiles (1)
- electron microscopy (1)
- high pressure (1)
- in-situ synthesis (1)
- infrared spectroscopy (1)
- microstructural changes (1)
- negative crystal growth (1)
- phosphate glasses (1)
- water speciation (1)
- µ-gravity (1)
- γ- и γ'-фазы, период кристаллической решетки (1)
- γ/γ' matrix (1)
- γ″ phase (1)
- θ′ phase (1)
- θ′-(Al2Cu) precipitate phase (1)
- высокие температуры (1)
- жаропрочные нике- левые сплавы (1)
- монокристалл (1)
- рентгеноструктурный анализ (1)
Organisationseinheit der BAM
- 5 Werkstofftechnik (354) (entfernen)
Paper des Monats
- ja (11)
(Bio)geochemical cycling of gold (Au) has been demonstrated in present-day (semi)-arid, (sub)-tropical and temperate environment. Hereby biofilms on Au-bearing mineral- and Au-particle surfaces drive Au dispersion and reconcentration, thereby (trans)forming the particles. However, it is unknown if biogeochemical cycling of Au occurs in polar environments, where air temperatures can reach −40 °C and soils remain frozen for much of the year. Therefore, placer Au-particles, soils and waters were collected at two placer mining districts in arctic Finland, i.e., the Ivalojoki and Lemmenjoki goldfields. Sites were chosen based on contrasting settings ((glacio)-fluvial vs. glacial-till deposits) and depths (surface to 5m below current surface). Gold particles were studied using a combination of tagged 16S rRNA gene next generation sequencing and electron microscopic/microanalytical techniques. Across all sites a range of Au-particle morphologies were observed, including morphotypes indicative of Au dissolution and aggregation. Elevated Au concentrations indicative of Au mobility were detected in placer particle bearing soils at both districts. Typically Au-particles were coated by polymorphic biofilm layers composed of living and dead cells embedded in extracellular polymeric substances. Intermixed were biominerals, clays and iron-sulfides/oxides and abundant secondary Au morphotypes, i.e., nano-particles, microcrystals, sheet-like Au, branched Au networks and overgrowths and secondary rims. Biofilms communities were composed of Acidobacteria (18.3%), Bacteroidetes (15.1%) and Proteobacteria (47.1%), with β-Proteobacteria (19.5%) being the most abundant proteobacterial group. Functionally, biofilms were composed of taxa contributing to biofilm establishment, exopolymer production and nutrient cycling, abundant taxa capable of Au mobilization, detoxification and biomineralization, among them Cupriavidus metallidurans, Acinetobacter spp. and Pseudomonas spp., were detected. In conclusion, these results demonstrate that placer Au-particle transformation and Au dispersion occur in cold, arctic environments. This corroborates the existence of biogeochemical Au cycling in present-day cold environments.
The research focus of this study was set on the corrosion process of condensate as droplets on the surface of carbon steels (X52, X70) martensitic steel UNS S41500, and super austenite UNS N08031 in CO2 atmosphere with impurities at 278 K (to simulate the offshore transportation condition in a buried pipeline). The possibility of dew/droplet formation on the steel surface and wetting behavior of corresponding materials were evaluated by contact angle measurement in dense CO2 at 278 K. To observe the effect of impurities (SO2 and O2) on droplet corrosion process, exposure tests were carried out in the mixed atmosphere with a drop, 1 ‑ 10 µL in volume, of CO2 saturated ultra-pure water on steel surface. Comparable exposure tests were carried out with the same gas mixture and the same volume of water, as vapor, to observe the droplet formation and the corrosion process that follows. Effects of surface roughness on the droplet formation and its corrosion process were further studied and showed no significant role upon long time exposure. The results from droplet experiments were compared to those from the bulk electrolyte for the further recommendation on the quality control of gas stream along with the use of carbon steels as transport pipelines in CCS - Carbon Capture and Storage system.
A gray cast iron disc, which had been submitted to a heavy duty automotive brake test, was examined with energy filtered transmission electron microscopy. A graphite flake in a convenient angular position showed the shear interaction of graphite layers with the iron matrix in nano-scale resolution. Atomic layers of graphite were wedged into the ferritic bulk, allowing the entrance of oxygen and the subsequent formation of magnetite. The exfoliated few-layer graphene batches deformed heavily when forced into the matrix. When Raman spectra from the disc surface, which show distinctive carbonaceous bands, were compared with Raman spectra from graphite subjected to deformation in a shaker mill with different milling times, it could be seen that the shear stress on the brake surface was much more effective to induce disorder than the milling, where compressive and impact forces had been additionally exerted on the sample. During shear load the high anisotropy of elastic modulus in the graphite crystalline structure and the low adhesion between graphite basal planes allowed the exfoliation of wrinkled few-layer grapheme batches, causing the formation of more defect related Raman bands than the mechanical stress during high-energy milling.
During the energy transformation from fossil fuels to renewable energy sources, the use of hydrogen as fuel and energy storage can play a key role. This presents new challenges to industry and the scientific community alike. The storage and transport of hydrogen, which is nowadays mainly realized by austenitic stainless steels, remains problematic, which is due to the degradation of mechanical properties and the possibility of phase transformation by hydrogen diffusion and accumulation. The development of materials and technologies requires a fundamental understanding of these degradation processes. Therefore, studying the behavior of hydrogen in austenitic steel contributes to an understanding of the damage processes, which is crucial for both life assessment and safe use of components in industry and transportation. As one of the few tools that is capable of depicting the distribution of hydrogen in steels, time-of-flight secondary ion mass spectrometry was conducted after electrochemical charging. To obtain further information about the structural composition and cracking behavior, electron-backscattered diffraction and scanning electron microscopy were performed. Gathered data of chemical composition and topography were treated employing data fusion, thus creating a comprehensive portrait of hydrogen-induced effects in the austenite grade AISI 304L. Specimens were electrochemically charged with deuterium instead of hydrogen. This arises from the difficulties to distinguish between artificially charged hydrogen and traces existing in the material or the rest gas in the analysis chamber. Similar diffusion and permeation behavior, as well as solubility, allow nonetheless to draw conclusions from the experiments.
Hydrogen is an attractive energy carrier that requires high effort for safe storage. For ensuring safety, storage cylinders must undergo a challenging approval process. Relevant standards and regulations for composite cylinders used for the transport of hydrogen and for its onboard storage are currently based on deterministic (e.g. ISO 11119-3) or to some respect semi-probabilistic criteria (UN GTR No. 13; with respect to burst strength).
This paper provides a systematic analysis of the load cycle properties resulting from these regulations and standards. Their characteristics are compared with the probabilistic approach of the Federal Institute for Materials Research and Testing BAM. The most important aspect of comparing different concepts is the rate for accepting designs with potentially unsafe or critical safety properties. This acceptance rate is analysed by operating Monte-Carlo simulations over the available range of production properties.
The increasing pollution of terrestrial and aquatic ecosystems with plastic debris leads to the accumulation of microscopic plastic particles of still unknown amount. To monitor the degree of contamination analytical methods are urgently needed, which help to quantify microplastics (MP). Currently, time-costly purified materials enriched on filters are investigated both by micro-infrared spectroscopy and/or micro-Raman. Although yielding precise results, these techniques are time consuming, and are restricted to the analysis of a small part of the sample in the order of few micrograms. To overcome these problems, here we tested a macroscopic dimensioned NIR process-spectroscopic method in combination with chemometrics. For calibration, artificial MP/soil mixtures containing defined ratios of polyethylene, polyethylene terephthalate, polypropylene, and polystyrene with diameters < 125 µm were prepared and measured by a process FT-NIR spectrometer equipped with a fiber optic reflection probe. The resulting spectra were processed by chemometric models including support vector machine regression (SVR), and partial least squares discriminant analysis (PLS-DA). Validation of models by MP mixtures, MP-free soils and real-world samples, e.g. and fermenter residue, suggest a reliable detection and a possible classification of MP at levels above 0.5 to 1.0 mass% depending on the polymer. The benefit of the combined NIRS chemometric approach lies in the rapid assessment whether soil contains MP, without any chemical pre-treatment. The method can be used with larger sample volumes and even allows for an online prediction and thus meets the demand of a high-throughput method.
Commercial grade-1 titanium samples (Ti, 99.6%) were treated using three alternative methods, (i) femtosecond laser processing, (ii) thermal heat treatment, and (iii) electrochemical anodization, respectively, resulting in the formation of differently conditioned superficial titanium oxide layers. The laser processing (i) was carried out by a Ti:sapphire laser (pulse duration 30 fs, central wavelength 790 nm, pulse repetition rate 1 kHz) in a regime of generating laser-induced periodic surface structures (LIPSS). The experimental conditions (laser fluence, spatial spot overlap) were optimized in a sample-scanning setup for the processing of several square-millimeters large surface areas covered homogeneously by these nanostructures. The differently oxidized titanium surfaces were characterized by optical microscopy, micro Raman spectroscopy, variable angle spectroscopic ellipsometry, and instrumented indentation testing. The tribological performance was characterized in the regime of mixed friction by reciprocating sliding tests against a sphere of hardened steel in fully formulated engine oil as lubricant. The specific tribological performance of the differently treated surfaces is discussed with respect to possible physical and chemical mechanisms.
Calcium cobaltite is one of the most promising oxide p-type thermoelectric materials. The solid-state reaction (or calcination, respectively), which is well known for large-scale powder synthesis of functional materials, can also be used for the synthesis of thermoelectric oxides. There are various calcination routines in literature for Ca3Co4O9 powder synthesis, but no systematic study has been done on the influence of calcination procedure on thermoelectric properties. Therefore, the influence of calcination conditions on the Seebeck coefficient and the electrical conductivity was studied by modifying calcination temperature, dwell time, particle size of raw materials and number of calcination cycles. This study shows that elevated temperatures, longer dwell times, or repeated calcinations during powder synthesis do not improve but deteriorate the thermoelectric properties of calcium cobaltite. Diffusion during calcination leads to idiomorphic grain growth, which lowers the driving force for sintering of the calcined powder. A lower driving force for sintering reduces the densification. The electrical conductivity increases linearly with densification. The calcination procedure barely influences the Seebeck coefficient. The calcination procedure has no influence on the phase formation of the sintered specimens.
A wide range of solid-state synthesis routes for calcium manganate is reported in the literature, but there is no systematic study about the influence of the solid-state synthesis conditions on thermoelectric properties. Therefore, this study examined the influence of calcination temperature and calcination cycles on the Seebeck coefficient, electrical conductivity, and thermal conductivity. Higher calcination temperatures and repeated calcination cycles minimized the driving force for sintering of the synthesized powder, leading to smaller shrinkage and lower densities of the sintered specimens. As the electrical conductivity increased monotonously with increasing density, a higher energy input during calcination caused deterioration of electrical conductivity. Phase composition and Seebeck coefficient of sintered calcium manganate were not influenced by the calcination procedure. The highest thermoelectric properties with the highest power factors and figures of merit were obtained by means of reaction-sintering of uncalcined powder.
The granules commonly yielded by spray drying procedures exhibit a hard shell and an irregular, dimpled shape, which is often described as donut-like morphology. Sintered parts produced from such granules suffer from microstructural defects and reduced mechanical properties resulting from these disadvantageous granule properties.
Using the example of alumina, zirconia and zirconia-toughened alumina (ZTA) batches, this paper shows that the morphology of the granules can be tuned by adjusting slurry stability. High zeta potential is essential to optimally disperse the particles. But to achieve spherical and soft granules the electrostatic repulsion forces between the particles should be reduced before spray granulation. Electrostatic repulsion forces were changed with the addition of nitric acid. Measurements of zeta potential and viscosity, as well as sedimentation investigations with an optical centrifuge were used for precise slurry assessment as a major precondition for optimal and reproducible adjustment of slurries before spray drying. Sedimentation analysis using an optical centrifuge was performed to investigate different influences like that of additive composition, solids content or pH-value on the sedimentation behavior. Adequately flocculated slurries lead to homogeneous, soft granules that can be easily deformed and pressed. The fraction of donut-shaped particles and the rigidity of granules were reduced. Consequently, the sintered parts produced from these granulates show improvements regarding porosity, pore size distribution, sintered density and biaxial strength.