5 Werkstofftechnik
Filtern
Dokumenttyp
- Vortrag (327) (entfernen)
Sprache
- Englisch (327) (entfernen)
Referierte Publikation
- nein (327)
Schlagworte
- Additive Manufacturing (40)
- Additive manufacturing (22)
- Corrosion (20)
- Microstructure (17)
- Ontology (16)
- Ceramics (13)
- Glass (13)
- Fatigue (11)
- Ceramic (9)
- Crack growth (9)
- Sintering (9)
- Transmission electron microscopy (9)
- Creep (8)
- 316L (7)
- Diffraction (7)
- Thermoelectrics (7)
- CCUS (6)
- EBSD (6)
- Fractography (6)
- High entropy alloys (6)
- Powder (6)
- Scanning electron microscopy (6)
- Slurry (6)
- 3D printing (5)
- Anisotropy (5)
- Crystal plasticity (5)
- DCB (5)
- Degradation (5)
- Glass fiber reinforced polymers (5)
- LCF (5)
- Layerwise slurry deposition (5)
- Oxidation (5)
- Ti-6Al-4V (5)
- Water speciation (5)
- AGIL (4)
- Alloy 2618A (4)
- Aluminium (4)
- CALPHAD (4)
- CCS (4)
- CO2 (4)
- Coarsening (4)
- Creep behavior (4)
- Crystallization (4)
- Droplet corrosion (4)
- EN AW-2618A (4)
- FAIR data management (4)
- Fatigue crack growth (4)
- Fe-Al alloys (4)
- High-temperature corrosion (4)
- In situ (4)
- In-space manufacturing (4)
- Intermetallics (4)
- Iron aluminides (4)
- Knowledge graph and ontologies (4)
- Laser powder bed fusion (4)
- Machine Learning (4)
- Martensitic steel (4)
- Mechanical properties (4)
- Microgravity (4)
- Neutron diffraction (4)
- Nickel-base superalloys (4)
- Non-destructive testing (4)
- Polymer matrix composites (4)
- Residual Stress (4)
- Sulfidation (4)
- Supercritical/dense phase CO2 (4)
- Additive Fertigung (3)
- Advanced ceramics (3)
- Alkali ions (3)
- Alumina (3)
- Aluminium Alloy (3)
- CCU (3)
- Carbon steels (3)
- Ceramic spring (3)
- Dielectric strength (3)
- FAIR (3)
- Foaming (3)
- Geothermal (3)
- High temperature corrosion (3)
- Mechanical behavior (3)
- Mechanical testing (3)
- PMD Core Ontology (3)
- Residual stress (3)
- S-phase (3)
- Scarf repairs (3)
- Semantic Interoperability (3)
- Silicate Glasses (3)
- Soda-lime silicate glass (3)
- Superaustenite steel (3)
- Texture (3)
- Thermomechanical fatigue (3)
- Transmission electron microscopy (TEM) (3)
- Vickers (3)
- Water content (3)
- Welding (3)
- Wind turbine blades (3)
- X-ray diffraction (3)
- μ-gravity (3)
- AISI 316L (2)
- Alkali zinc borate glasses (2)
- Aluminium alloy (2)
- CO2 quality (2)
- Carbon capture (2)
- Carbon capture storage (2)
- Carbon dioxide (2)
- Carbon steel (2)
- Characterization (2)
- Chemically complex alloy (2)
- Composites (2)
- Computed Tomography (2)
- Concrete (2)
- Copper (2)
- Crack tip opening displacement (2)
- Creep data (2)
- Dark-field transmission electron microscopy (2)
- Data Interoperability (2)
- Data mapping (2)
- Dielectric breakdown (2)
- Digital image correlation (2)
- Digitalization (2)
- Digitization (2)
- Digtial Representation (2)
- Diopside (2)
- Dislocation (2)
- EDXRD (2)
- Electron microscopy (2)
- Electron-beam-induced modification (2)
- Environmental stress cracking (2)
- Ferritic-martensitic steels (2)
- Fracture Toughness (2)
- Fracture surface (2)
- Gitterkonstanten (2)
- Glas (2)
- Glass-ceramics (2)
- Hard machining (2)
- Heat treatment (2)
- High Cycle Fatigue (2)
- High Entropy Alloy (2)
- High Temperature Corrosion (2)
- High entropy alloy (2)
- High temperature (2)
- High temperature mechanical properties (2)
- High-entropy alloy (2)
- High-entropy alloys (2)
- Impurities (2)
- In-situ (2)
- Joined nickel-based alloys (2)
- Knowledge Representation (2)
- LSD-print (2)
- Laser (2)
- Laser beam melting (2)
- Layerwise (2)
- Low Cycle Fatigue (2)
- Lunar regolith simulant (2)
- Material digital (2)
- Microplastics (2)
- Microstrucrue Design (2)
- Microstructural analysis (2)
- Microstructure Design (2)
- Mixed gas atmosphere (2)
- Modeling (2)
- Multilayer (2)
- Multilayer technology (2)
- NDT (2)
- Nanoparticles (2)
- Notches (2)
- Ontology development (2)
- Orientation (2)
- Oxidation behavior (2)
- Oxide Glasses (2)
- PE-HD (2)
- PMD (2)
- Particle size (2)
- Phasenidentifikation (2)
- Pipeline (2)
- Plattform MaterialDigital (2)
- Process monitoring (2)
- Push-out Test (2)
- Reaction sintering (2)
- Residual Stresses (2)
- Ressidual stress (2)
- Rotor blade (2)
- SEM (2)
- Scale-bridging (2)
- Selective Laser Melting (2)
- Semantic Representation (2)
- Semantic Web Technologies (2)
- Silicon Carbide (2)
- Silver diffusion (2)
- Silver-glass-metallization-paste (2)
- Sintering additives (2)
- Spectroscopy (2)
- Spray drying (2)
- Spring constant (2)
- Standard (2)
- Standardization (2)
- Superalloy (2)
- Tensile Test (2)
- Tensile data (2)
- Tensile test (2)
- Thermo-Mechanical Fatigue (2)
- Thermoelectric (2)
- Topography (2)
- Transparent ceramics (2)
- Two Photon Polymerization (2)
- UV-irradiation (2)
- Ultrasound (2)
- Virtual experiments (2)
- Viscoplasticity (2)
- Viscosity (2)
- Wall thickness (2)
- Wind turbine blade shells (2)
- XANES (2)
- Zero-g (2)
- µ-gravity (2)
- 3D (1)
- 3D Reconstruction (1)
- 3D glass structure model (1)
- 3D materialography (1)
- 3D-printing (1)
- 9-12% Cr ferritic-martensitic steels (1)
- AM (1)
- Accelerated integration scheme (1)
- Acids (1)
- Active thermography (1)
- Adiabatic shear bands (1)
- Advanced manufacturing (1)
- Aerospace (1)
- Ageing (1)
- Agglomerates (1)
- Aggressive gases (1)
- Aging (1)
- Air-coupled ultrasonic testing (1)
- Airborne ultrasonic testing (1)
- Al-Li alloys (1)
- Alkali zinc borate glass (1)
- Aluminum (1)
- Aluminum alloys (1)
- Analysis (1)
- Annealing (1)
- Atmospheric plasma spraying (1)
- Austenitic cast iron (1)
- Austenitic steel 316L (1)
- Automation (1)
- Biaxial strength (1)
- Binder Jetting (1)
- Binder jetting (1)
- Bioactive Glass (1)
- Bioceramic (1)
- Bioceramics (1)
- Biodiesel (1)
- Blähen (1)
- Bond energy (1)
- Breakdown strength (1)
- Brinell hardness (1)
- CO2-corrosion (1)
- Calcination (1)
- Calcium cobaltite (1)
- Calcium manganate (1)
- Calcium sulfates (1)
- Calibration (1)
- Cantor alloy (1)
- Capture (1)
- Carbon (1)
- Carbon steels (1)
- Carbon Capture (1)
- Carbon Capture, Utilization and Storage (CCUS) (1)
- Carbon Fiber Reinforced Plastics (1)
- Carbon Fibers (1)
- Casting (1)
- Centrifugal casting (1)
- Ceramic multilayer (1)
- Ceramic springs (1)
- Certification Standard 22 (1)
- Certified Referencematerial (1)
- Chemically complex alloys (1)
- Chemo-mechanical coupling (1)
- Chromatography (1)
- Chromia (1)
- Chromium oxide (1)
- Co-firing (1)
- Co-segregation (1)
- Coatings (1)
- Complex borides (1)
- Complex loading (1)
- Component assessment (1)
- Composite (1)
- Composite testing (1)
- Compositionally complex alloys (1)
- Computed tomography (1)
- Condensation (1)
- Contamination (1)
- Continnum damage model (1)
- Cooling simulations (1)
- Cow stress (1)
- Cr2O3 (1)
- Crack Propagation (1)
- Crack evolution (1)
- Crack propagation (1)
- Creep anisotropy (1)
- Creep behaviour (1)
- Creep-Fatigue (1)
- Creep-fatigue (1)
- Crevice corrosion (1)
- Cross linking (1)
- Crystal Defects (1)
- Crystal Orientation (1)
- Crystal Plasticity Modelling (1)
- Cubical Iron Oxide (1)
- Cure process (1)
- Cycle jump (1)
- Cyclic R-Curve (1)
- Cyclic oxidation (1)
- Cyclic softening (1)
- Damage (1)
- Damage Behavior (1)
- Damage Tolerance (1)
- Damage mechanisms (1)
- Dark-field transmission electron microscopy (DFTEM) (1)
- Data Exchange (1)
- Data Fusion (1)
- Data Management (1)
- Data Structures (1)
- Data linking (1)
- Data management (1)
- Data space (1)
- Data storage (1)
- Data structure (1)
- Deep learning (1)
- Defects (1)
- Defects phase diagram (1)
- Defects thermodynamics (1)
- Deformation behavior (1)
- Density-based Thermodynamics (1)
- Density-based model (1)
- Density-based phase-field modelling (1)
- Dental (1)
- Destabilization (1)
- Die casting (1)
- Dielectric breakdown strength (1)
- Dielectric characterization (1)
- Diesel (1)
- Diffraction Elastic Constants (1)
- Diffraction Enhanced Imaging (1)
- Diffraction contrast (1)
- Diffusion (1)
- Diffusion coefficient (1)
- Dislocation substructure (1)
- Dislocations (1)
- Disordered assemblies (1)
- Dispersion process (1)
- Dissimilar metal weld (1)
- Dissolved water (1)
- Distribution function (1)
- Driving physical mechanism (1)
- Dual-energy (1)
- Dynamic mechanical analysis (1)
- Dynamic mechanical analysis (DMA) (1)
- Dynamisch Mechanische Analyse (1)
- EAC-1A (1)
- EASA (1)
- EDX (1)
- Early oxidation (1)
- Elastic constants (1)
- Electric field distribution (1)
- Electric field strength (1)
- Electrical insulation (1)
- Electron Microscopy (1)
- Electron backscatter diffraction (1)
- Electron backscattered diffraction (EBSD) (1)
- Electronic Lab Notebook (1)
- Environmental Stress Cracking (1)
- Etching (1)
- FAIR Data Management (1)
- FAIR data (1)
- FCH JU (1)
- FIB (1)
- Fabrication method (1)
- Failure test (1)
- Fatigue Crack Growth (1)
- Fatigue Life Evaluation (1)
- Fatigue damage (1)
- Fatigue fracture (1)
- Fatigue of sandwich shell structures (1)
- Fatigue of sandwich structures (1)
- Fatigue performance (1)
- FeCr- alloys (1)
- Feldspar (1)
- Fem (1)
- Ferritic Alloys (1)
- Ferroelectret (1)
- Fiber (1)
- Fiber reinforced polymer (1)
- Fiber reinforced polymers (1)
- Fine Powder (1)
- Finite element analysis (1)
- Finite elmenet simulation (1)
- Flowability (1)
- Fluorescence spectroscopy (1)
- Force-distance diagram (1)
- Fracture Mechanics (1)
- Fracture Surface Analysis (1)
- Fracture behavior (1)
- Fracture surface analysis (1)
- Fracture toughness (1)
- Freeze Drying (1)
- Full Notch Creep Test (1)
- Full-Notch Creep Test (FNCT) (1)
- GD-OES (1)
- Gas storage (1)
- Gasabgabe (1)
- Gasgehalt (1)
- Geopolymers (1)
- Glass Fibres (1)
- Glass composition (1)
- Glass fibre reinforced plastics (1)
- Glass melting (1)
- Glass powder (1)
- Glass screening device (1)
- Gold nanoparticle synthesis (1)
- Gold nanoparticles (1)
- Gradient-enhanced damage (1)
- Grain boundaries (1)
- Grain boundary engineering (1)
- Granules (1)
- Graphic design (1)
- HEA (1)
- Hardness (1)
- Heat Treatments (1)
- Heißgasextraktion (1)
- High Entropy Alloys (1)
- High Temperature Testing (1)
- High entropy superalloys (1)
- High-Temperature Corrosion (1)
- High-density polyethylene (1)
- Hochentropie-Legierung (1)
- Horizon 2020 (1)
- Hot Press (1)
- Hot isostatic pressing (1)
- Hot pressing (1)
- Hydrogen (1)
- Hydrogen permeation (1)
- Hydrogen sensor (1)
- Hydrogen sensors (1)
- Hyper-arid (1)
- IN738LC (1)
- IR (1)
- ISRU (1)
- Implant failures (1)
- Implants (1)
- In situ tensile test (1)
- In-Situ Testing (1)
- Inconel 686 coating (1)
- Inconel 718 (1)
- Infrastructure (1)
- Initial attachment (1)
- Injection (1)
- Interface Strength (1)
- Interfacial Spinodal (1)
- Internal friction (1)
- Interoperability (1)
- Inverse ostwald ripening (1)
- Investment casting (1)
- Iron oxide nanoparticles (1)
- Knowledge Graphs (1)
- Knowledge graph (1)
- Kristallisation (1)
- L-PBF (1)
- LTCC (1)
- Laminography (1)
- Laser Powder Bed Fusion (1)
- Laser Powder Bed fusion (1)
- Laser Scanning Microscopy (LSM) (1)
- Laser cladding (1)
- Laser curing (1)
- Laser induced slipcasting (1)
- Lattice misfit (1)
- Layer depostion (1)
- Layerwise Slurry Deposition (1)
- Legierung mit komplexer Zusammensetzung (1)
- Li-ion battery (1)
- Life cycle (1)
- Lightweight materials (1)
- Lightweighting (1)
- Lithium Ion Batteries (1)
- Localized plasmons (1)
- Long-term storage (1)
- Low cycle fatigue (1)
- Low-Cycle-Fatigue (1)
- Low-cycle-fatigue behaviour (1)
- Lunar habitat (1)
- MEA (1)
- Manganese oxide (1)
- Manufacturing (1)
- Martensitic steel (1)
- Mat-o-lab (1)
- Material Digital (1)
- Material defects (1)
- MaterialDigital (1)
- Materials Modelling (1)
- Materials Science (1)
- Materials science (1)
- Materials testing (1)
- Mechanical and thermal testing (1)
- Mechanistic Modelling (1)
- Medium Entropy Alloys (1)
- Medium entopy alloy (1)
- Medium-entropy alloy (1)
- Melt pool boundary (1)
- Metadata schema (1)
- Metallic components (1)
- Metallic silver precipitates (1)
- Metallography (1)
- Micro-shrinkages (1)
- Microbiologically influenced corrosion (1)
- Microhardness (1)
- Micromechanical model (1)
- Microstructural characterization (1)
- Microstructural evolution (1)
- Microstructural orientation (1)
- Microstructure Characterization (1)
- Microstructure Evolution (1)
- Microstructure characterisation (1)
- Microstructure design (1)
- Microstructure evolution (1)
- Microstructure modification (1)
- Microstructure-property-correlation (1)
- Mid-Level Ontology for MSE (1)
- Mikroplastik (1)
- Mikrostruktur (1)
- Mixed Ca-K-Na phosphates (1)
- Mn3O4 (1)
- Monte-Carlo Simulation (1)
- Mortar (1)
- Mortel (1)
- Multi-principal element alloys (1)
- Multilayertechnik (1)
- NTE (1)
- Na and K rhenanites (1)
- Nano particle (1)
- Nano screening (1)
- Nano-assemblies (1)
- Nano-powder (1)
- Nanoparticle synthesis (1)
- Nanoplattform (1)
- Negative charged microparticle (1)
- Neutron Diffraction (1)
- New standards (1)
- Ni-Resist (1)
- Nickel-base superalloy (1)
- Non-desired foaming (1)
- Nondestructive testing (1)
- Normung (1)
- Nucleation (1)
- Nucleation mode (1)
- Online quality control (1)
- Ooxidation (1)
- Optic (1)
- Oriented surface crystallization (1)
- Oxide glass (1)
- P92 (1)
- P92 steels (1)
- PA6.6 (1)
- PBF-LB/M/316L (1)
- PMDco (1)
- PPA (1)
- Paving (1)
- Phase Diagrams (1)
- Phase Separation (1)
- Phase analysis (1)
- Phase diagram (1)
- Phase field simulation (1)
- Phase separation (1)
- Phase transformation (1)
- Phase transformations (1)
- Phase-Field Simulation (1)
- Phase-Field Simulations (1)
- Phase-field Simulation (1)
- Phase-field simulation (1)
- Photon counting detector (1)
- Physically based material model (1)
- Physics-informed Neural Network (1)
- Pipeline network (1)
- Planetary surface (1)
- Platform Material Digital (1)
- Platform Material Digital (PMD) (1)
- Platform MaterialDigital (1)
- Platform MaterialDigital (PMD) (1)
- Pole figures (1)
- Polyaniline (1)
- Polyethylen (1)
- Polyethylene, PE-HD (1)
- Polymer (1)
- Polymer Matrix Composite (1)
- Polymer Matrix Composites (1)
- Porcelain (1)
- Pores (1)
- Powder deposition (1)
- Power plant (1)
- Precipitation (1)
- Precipitation Analysis (1)
- Precipitation hardening (1)
- Preparation (1)
- Pressure assisted sintering (1)
- Pressure-assisted sintering (1)
- Protective coating (1)
- Quantitative Precipitation Analysis (1)
- Rafting (1)
- Recommendations (1)
- Recycling (1)
- Reference data (1)
- Reference material (1)
- Referenzdaten (1)
- Refractory chemically complex alloy (1)
- Refractory chemically complex alloys (1)
- Relaxation (1)
- Relaxation metallic glasses (1)
- Relaxationsphänomene (1)
- Repair of sandwich shell structures (1)
- Reproducibility (1)
- Residual stress analysis (1)
- Residual stresses (1)
- Resistance (1)
- Review (1)
- Roboter (1)
- Roughness (1)
- S355 steel sheet (1)
- SHM (1)
- SIMS (1)
- SLM (1)
- Safety assessment (1)
- Sailplane Development Panel (1)
- Sandwich (1)
- Sandwich structures (1)
- Scanning Electron Microscopy (SEM) (1)
- Scanning electron microscope (1)
- Scanning transmission electron microscopy (STEM) (1)
- Scarf joint repair (1)
- Screen printing (1)
- Selective laser melting (1)
- Semantic Interioerability (1)
- Semantic Web (1)
- Semantic web (1)
- Sensor (1)
- SiO2 (1)
- Sibayak (1)
- Silicatglas (1)
- Silver cluster (1)
- Silver metallization paste (1)
- Silver precipitates (1)
- Silver-glass metallization paste (1)
- Simulation (1)
- Simulation of concrete (1)
- Single-Crystal (1)
- Single-crystals (1)
- Sinter additive (1)
- Sintering atmosphere (1)
- Sintern (1)
- Slow crack growth (1)
- Small-Angle X-ray Scattering (1)
- Soda-lime-silica glass (1)
- Sol-gel coating (1)
- Solar sintering (1)
- Solid solution strengthening (1)
- Space exploration (1)
- Spark plasma sintering (1)
- Spinodal Decomposition (1)
- Split Hopkinson bar (1)
- Spring constant (1)
- Stainless steel (1)
- Steel (1)
- Storage (1)
- Strain rate dependence (1)
- Structure (1)
- Structured heating (1)
- Subsurface defects (1)
- Sulfiding (1)
- Superalloys (1)
- Superaustenite steel (1)
- Supercritical/dense phase CO 2 (1)
- Superlegierung (1)
- Surface Energy (1)
- Surface Nucleation (1)
- Surface crystallization (1)
- Surface energy (1)
- Synchrotron CT (1)
- Synchrotron radiation (1)
- Syngle Crystal alloy (1)
- Synthetic air (1)
- TAHYA (1)
- TED (1)
- TED-GC-MS (1)
- TEM (1)
- TMF (1)
- TMF experiments (1)
- Temperature (1)
- Temperature driven process (1)
- Tempered Martensite Ferritic Steels (1)
- Tempered martensite ferritic steel (1)
- Tempered martensite ferritic steels (1)
- Tensile Properties (1)
- Tensile Test Ontology (1)
- Tensile stress relaxation (1)
- Tensile testing (1)
- Texturation (1)
- Thermal degradation (1)
- Thermal stress (1)
- Thermo mechanical fatigue (1)
- Thermo-mechanical fatigue (1)
- Thermo-mechanical-loading (1)
- Thermo-optical measurement (1)
- Thermoanalytical Methods (1)
- Thermoelectric generator (1)
- Thermoelectric oxide (1)
- Thermogravimetric analysis (1)
- Thermogravimetry (1)
- Thermomechanics (1)
- Thermoset polymers (1)
- Thesaurus (1)
- Titanium (1)
- Tomography (1)
- Tools (1)
- Under cyclic loading (1)
- Utilization (1)
- Utilization, and storage (CCUS) technology (1)
- VCSEL (1)
- VSSA (1)
- Vacuum hot extraction (1)
- Vickers hardness (1)
- Wasser (1)
- Waste water (1)
- Water-based (1)
- Weibull Distribution (1)
- Weibull distribution (1)
- Welding processing influences (1)
- Whole-chain CCS scenario (1)
- Wind energy (1)
- Wind turbine (1)
- Wind turbine blade shell structures (1)
- Withstand voltage tests (1)
- Workshop (1)
- X-Ray Diffraction (1)
- X-ray imaging (1)
- X-ray laminography (1)
- X-ray refraction (1)
- XRD (1)
- alumina (1)
- arbon capture (1)
- carbon steel (1)
- ceramic (1)
- ceramics (1)
- condensate (1)
- corrosion (1)
- dental (1)
- electrochemical characterization (1)
- impurities (1)
- microstructure analysis (1)
- multi scale testing (1)
- pitting corrosion (1)
- selective laser melting (1)
- utilization, and storage (CCUS) technology (1)
- volume resistivity (1)
Organisationseinheit der BAM
- 5 Werkstofftechnik (327)
- 5.1 Mikrostruktur Design und Degradation (90)
- 5.2 Metallische Hochtemperaturwerkstoffe (87)
- 5.4 Multimateriale Fertigungsprozesse (78)
- 5.5 Materialmodellierung (38)
- 5.6 Glas (36)
- 5.3 Polymere Verbundwerkstoffe (34)
- 8 Zerstörungsfreie Prüfung (29)
- 9 Komponentensicherheit (29)
- 7 Bauwerkssicherheit (27)
Motivated by the aim of developing an additive manufacturing (AM) technology easily integrated in the process chains of the ceramic industry, the LSD-print technology was conceived as a slurry-based variation of binder jetting (BJ).
BJ and other powder bed technologies (such as powder bed fusion) are amongst the most successful AM techniques, especially for metals and polymers, thanks to their high productivity and scalability. The possibility to use commercially available feedstocks (in the form of powders or granules) makes BJ also attractive for ceramic materials. The application of these techniques to most advanced ceramics has however been difficult so far, because of the limitations in depositing homogeneous layers with fine, typically poorly flowable powders.
In this context, the "layerwise slurry deposition" (LSD) was proposed at TU Clausthal (Germany) as a slurry-based deposition of ceramic layers by means of a doctor blade. Combined with layer-by-layer laser sintering of the material, the LSD process was originally demonstrated for the rapid prototyping of silicate ceramics. Due to the difficulties in controlling the microstructure and the defect formation in laser-sintered technical ceramics, the LSD process was later combined with inkjet printing in the LSD-print technology, which has been further developed at BAM (Germany) in the past decade.
The LSD-print technology combines the high speed of inkjet printing, typical of BJ, with the possibility of producing a variety of high-quality ceramics with properties comparable to those achieved by traditional processing. Due to the mechanical stability of the powder bed, the process can also be carried out with continuous layer deposition on a rotating platform, which further increases its productivity.
This presentation will delve into 10 years of research on the LSD-print of a wide variety of technical ceramics including alumina, silicon carbides and dental ceramics. The discussion highlights how a seemingly small process and feedstock modification (from powders to slurries) has great influence on the challenges and potential of this process, which are being addressed on its path to industrialization.
Powder bed technologies are amongst the most successful Additive Manufacturing (AM) techniques. The application of these techniques to most ceramics has been difficult so far, because of the challenges related to the deposition of homogeneous powder layers when using fine powders.
In this context, the "layerwise slurry deposition" (LSD) has been developed as a layer deposition method enabling the use of powder bed AM technologies also for advanced ceramic materials. The layerwise slurry deposition consists of the layer-by-layer deposition of a ceramic slurry by means of a doctor blade, in which the slurry is deposited and dried to achieve a highly packed powder. Not only very fine, submicron powders can be processed with low organics, but also the dense powder bed provides excellent support to the parts built. The LSD technology can be combined with binder jetting to develop the so-called “LSD-print” process. LSD-print combines the high-speed printing of binder jetting with the possibility of producing a variety of high-quality ceramics with properties comparable to traditional processing.
The latest development of this technology shows that it is possible to print ceramic parts in a continuous process by depositing a layer onto a rotating platform, growing a powder bed following a spiral motion. The unique mechanical stability of the layers in LSD-print allows to grow a powder bed several centimeters thick without any lateral support. The continuous layer deposition allows to achieve a productivity more than 10X higher compared to the linear deposition, approaching a build volume of 1 liter/hour.
The Laser-Induced Slip Casting is an additive manufacturing technology specifically developed for ceramic materials using water-based ceramic slurries. The process takes place layer-by-layer in a similar fashion as top-down vat photopolymerization, selectively consolidating each layer by means of a laser energy source positioned on the top. Contrary to vat photopolymerization, in which the consolidation is achieved by selectively cross-linking a ceramic-filled resin, LIS uses water-based slurries with a low amount of organic additives (typically < 5 wt%) as feedstocks.
In LIS, a green body is formed by local evaporation of water which causes the suspension to collapse forming a cast, following a mechanism similar to slip casting. Only a small content of organic additives is needed to effectively disperse the ceramic particles and to increase the green strength.
The technology is very versatile and can be applied to all ceramic systems that can be dispersed in water. One of the main advantages is that even dark materials such as silicon carbide can be processed without issues related to light scattering and absorption.
The presentation will discuss strengths and limitations of LIS compared to other AM technologies and will highlight the latest results for alumina and for silicon carbide ceramics.
The presentation will start with an overview of ceramic additive manufacturing (AM) technologies and will discuss the potential of AM in the field of bioceramics.
The presentation will then focus on two possible use cases of binder jetting technologies.
In the first example, standard powder-based binder jetting is used to manufacture a porous implant design for large scale bone defects. The related challenges in the process chain will be discussed, from powder synthesis to sintering and characterization of the printed part.
In the second example, the LSD-print slurry-based binder jetting technology is presented as a possibility to adapt powder-bed AM to produce dense ceramic parts. The use case will focus on an application in the field of dental ceramics, specifically for the manufacturing of patient individualized single tooth restorations (veneers, crowns) with a high throughput process chain.
This study aims to represent an approach for transferring the materials testing datasets to the digital schema that meets the prerequisites of the semantic web. As a use case, the tensile stress relaxation testing method was evaluated and the testing datasets for several copper alloys were prepared. The tensile stress relaxation testing ontology (TSRTO) was modeled following the test standard requirements and by utilizing the appropriate upper-level ontologies. Eventually, mapping the testing datasets into the knowledge graph and converting the data-mapped graphs to the machine-readable Resource Description Framework (RDF) schema led to the preparation of the digital version of testing data which can be efficiently queried on the web.
The heat-resistant cast iron EN-GJSA-XNiSiCr35-5-2 (Ni-Resist D-5S) was investigated for its fatigue crack growth behavior at room and high temperatures. Force-controlled tests were carried out at constant temperatures (20 °C, 500 °C, 700 °C) without and with hold time and different load ratios. The crack growth behavior was also characterized under TMF loading (Tmin = 400 °C, Tmax = 700 °C) by applying IP and OP conditions and different load ratios. Three different techniques were combined to monitor crack growth: potential drop, thermography, and compliance method. The effect of the different loading conditions on the fatigue crack growth behavior will be presented and discussed.
In this presentation, the results of the determination of the diffraction and single-crystal elastic constants of laser powder bed fused Inconel 718 are presented. The analysis is based on high-energy synchrotron diffraction experiments performed at the Deutsches Elektronen-Synchrotron. It is shown that the characteristic microstructure of laser powder bed fused Inconel 718 impacts the elastic anisotropy and therefore the diffraction and single-crystal elastic constants. Finally, the consequences on the diffraction-based residual stress determination of laser powder bed fused Inconel 718 are discussed.
Manipulating ceramic powder compacts and ceramic suspensions (slurries) within their volume with light requires a minimum transparency of the materials. Compared to polymers and metals, ceramic materials are unique as they offer a wide electronic band gap and thus a wide optical window of transparency. The optical window typically ranges from below 0.3 µm up to 5µm wavelength. Hence, to penetrate with laser light into the volume of a ceramic powder compound its light scattering properties need to be investigated and tailored. In the present study we introduce the physical background and material development strategies to apply two-photon-polymerization (2PP) for the additive manufacture of filigree structures within the volume of ceramic slurries.
Manipulating ceramic powder compacts and ceramic suspensions (slurries) within their volume with light requires a minimum transparency of the materials. Compared to polymers and metals, ceramic materials are unique as they offer a wide electronic band gap and thus a wide optical window of transparency. The optical window typically ranges from below 0.3 µm up to 5µm wavelength. Hence, to penetrate with laser light into the volume of a ceramic powder compound its light scattering properties need to be investigated and tailored. In the present study we introduce the physical background and material development strategies to apply two-photon-polymerization (2PP) for the additive manufacture of filigree structures within the volume of ceramic slurries.
Manipulating ceramic powder compacts and ceramic suspensions (slurries) within their volume with light requires a minimum transparency of the materials. Compared to polymers and metals, ceramic materials are unique as they offer a wide electronic band gap and thus a wide optical window of transparency. The optical window typically ranges from below 0.3 µm up to 5µm wavelength. Hence, to penetrate with light into the volume of a ceramic powder compound, its light scattering properties need to be investigated and tailored. In the present study we introduce the physical background and material development strategies to apply two-photon-polymerization (2PP), and other volumetric methods for the additive manufacture of filigree structures within the volume of ceramic slurries.