Filtern
Erscheinungsjahr
Dokumenttyp
- Zeitschriftenartikel (62)
- Vortrag (48)
- Beitrag zu einem Tagungsband (33)
- Beitrag zu einem Sammelband (20)
- Posterpräsentation (2)
- Forschungsbericht (2)
- Buchkapitel (1)
- Sonstiges (1)
Schlagworte
- Wear (21)
- Friction (16)
- Temperature (12)
- Fretting (9)
- Silicon carbide (7)
- Ceramics (6)
- Reibung (6)
- Alumina (4)
- Ceramic (4)
- Humidity (4)
- Oscillating sliding (4)
- Relative humidity (4)
- Titanium carbide (4)
- Contact pressure (3)
- DLC (3)
- Dispergierung (3)
- Dry sliding (3)
- Hardness (3)
- Hot steam (3)
- Lubricated sliding (3)
- Microstructure (3)
- Nanopulver (3)
- Niobium carbide (3)
- Roughness (3)
- Schwingungsverschleiß (3)
- Silicon nitride (3)
- Simulation (3)
- TiC (3)
- Titanium diboride (3)
- Tribofilm (3)
- Tribologie (3)
- Wires (3)
- Abrasion (2)
- Activation energy (2)
- Atomic force microscopy (2)
- Bearbeitbarkeit (2)
- Beschichtung (2)
- Ceramic composites (2)
- Coating (2)
- Colloidal processing (2)
- Composites (2)
- Dentalkeramik (2)
- Diamond like carbon (2)
- EDS (2)
- Folie (2)
- HIP-Simulation (2)
- High temperature (2)
- Keramik (2)
- Lubrication (2)
- Movable cellular automata (MCA) (2)
- Partial slip (2)
- Polyetherimide (2)
- Polymers (2)
- Reciprocating sliding (2)
- SiC (2)
- Sliding speed (2)
- Steel (2)
- Stick-slip (2)
- Surface temperature (2)
- TiB2 (2)
- Titanium boride (2)
- Tribology (2)
- Verbundwerkstoffe (2)
- Verschleiß (2)
- Wear mechanism (2)
- Wear particles (2)
- Zirconia (2)
- A-C:H (1)
- AFM (1)
- Abrasive wear (1)
- Abriebverhalten (1)
- Alcaline earth fluorides (1)
- Alpha-alumina (1)
- Alumina powder (1)
- Aluminium oxide (1)
- Apha-alumina (1)
- Artificial hip joint (1)
- Ball-on-disk (1)
- Bearing steel (1)
- Bending strenght (1)
- Bending strength (1)
- Binder (1)
- Biopolymers (1)
- Boundary lubrication (1)
- CNx Schichten (1)
- COF (1)
- Ca-Ba fluoride (1)
- Calculation of wear volume (1)
- Carbon nanofiber (1)
- Carbon nitride (1)
- Cast iron (1)
- Ceramic Composites (1)
- Ceramic powders (1)
- Ceramic wear (1)
- Cermet (1)
- Cermets (1)
- Coating failure (1)
- Coefficient of friction (1)
- Colloid vibration current (CVI) (1)
- Composite (1)
- Composits (1)
- Computertomography (1)
- Contact geometry (1)
- Contact geometry crossed cylinders (1)
- Contact mechanics (1)
- Correlation of measurement (1)
- Counter body material (1)
- Counterbody (1)
- Counterbody influence (1)
- Crossing angle (1)
- Deairing (1)
- Defect type (1)
- Dental ceramic (1)
- Dental materials (1)
- Diaspore (1)
- Dispergieren (1)
- Dry oscillating sliding (1)
- Dry-slidins (1)
- EPMA (1)
- Electron probe microanalysis (1)
- Elemental mapping (1)
- Energy dispersive X-ray spectroscopy (1)
- Explosive compaction (1)
- Femtosecond techniques (1)
- Festschmierstoff (1)
- Fibers (1)
- Foliengiessen (1)
- Fretting corrosion (1)
- Fretting fatigue (1)
- Fretting regime (1)
- Fretting regimes (1)
- Fretting test (1)
- Fretting wear (1)
- Gas pressure sintering (1)
- Gelcasting (1)
- Graphene oxide (1)
- Graphit (1)
- Grease (1)
- Grease lubrication (1)
- Green compaction (1)
- Green state (1)
- Gross slip fretting (1)
- Grünkörper (1)
- Gümbel (1)
- Hard carbon coatings (1)
- High purity alumina (1)
- High temperatures (1)
- Hip simulator (1)
- Hirn (1)
- Hochleistungskeramik (1)
- Hohe Temperaturen (1)
- Humidity water (1)
- Imaging (1)
- Implantat (1)
- Infiltration (1)
- Interface (1)
- Isoelectric point (IEP) (1)
- Joining (1)
- Keramische Pulver (1)
- Kompositkeramik (1)
- Kontaktmechanik (1)
- Life science (1)
- Light elements (1)
- Liquid media (1)
- Low IR-emission ceramics (1)
- Low pressure injection molding (1)
- Lubricant additives (1)
- Lubricants (1)
- Lubricated contact (1)
- Luftfeuchte (1)
- Machinability (1)
- Magnetronsputtern (1)
- Martens (1)
- Mating material (1)
- Meßverfahren (1)
- Micro positioning (1)
- Mixed fretting regime (1)
- Modellierung (1)
- Modellsystem (1)
- Modellverschleißprüfung (1)
- Nano scale (1)
- Nanoadditive (1)
- Nanocrystalline powder (1)
- Nanopartikel (1)
- Nanoscale EDX analysis (1)
- Nanoscale T-SEM (1)
- Nanosecond techniques (1)
- NbC (1)
- Nckel binder (1)
- Ni (1)
- Niobium carbide (NbC) (1)
- Null-Verschleiß (1)
- Oscillation sliding (1)
- PAEKs (1)
- PEI (1)
- PVD coatings (1)
- Paraffin oil (1)
- Particle (1)
- Particle charge detection (PCD) (1)
- Particle size (1)
- Particulate composite (1)
- Particulate composites (1)
- Performance test (1)
- Phase analysis (1)
- Piezoelectric actuator (1)
- Plastic deformation (1)
- Polyetherketone composite (1)
- Polyethylene (1)
- Polymer (1)
- Porous zirconia (1)
- Preceramic polymer (1)
- Pressureless sintering (1)
- Properties (1)
- Raman spectra/condensed matter (1)
- Raman spectroscopy (1)
- Randzone (1)
- Rauhigkeit (1)
- Reciprocating sliding test (1)
- Reciprocating sliding wear (1)
- Reibungsverhalten (1)
- Reversierender Gleitverschleiß (1)
- Running in (1)
- SEM (1)
- Shaping methods (1)
- Siliconcarbonitride (1)
- Siliziumkarbid (1)
- Sintering (1)
- Sintern (1)
- Solid content (1)
- Solid lubricant (1)
- Solid lubricants (1)
- Solid lubrication (1)
- Spectrum imaging (1)
- Stahl (1)
- Standardisierung (1)
- Steam (1)
- Stick slip (1)
- Stitching technique (1)
- Streaming potential (1)
- Stribeck (1)
- Stribeck curve (1)
- Surface roughness (1)
- Surface topography (1)
- Suspensionen (1)
- Synergieeffekte (1)
- TSEM (1)
- Test bed (1)
- Thermochemische Analyse (1)
- Thurston (1)
- Titan (1)
- Titanium nitride (1)
- Transferschmierung (1)
- Tribo-film (1)
- Tribo-oxidation (1)
- Tribochemistry (1)
- Tribooxidation (1)
- UHMWPE (1)
- Unlubricated tests (1)
- Verschleißberechnung (1)
- Verschleißfestigkeit (1)
- Verschleißmodelle (1)
- Verschleißpartikel-Analyse (1)
- Viscosity (1)
- Water lubrication (1)
- Wear infiltration (1)
- Wear mechanisms (1)
- Wear particle analysis (1)
- Wear quantities (1)
- Wear resistance (1)
- Wear scar (1)
- Wear volume (1)
- Werkstoffentwicklung (1)
- White light interferometry (1)
- XPS/surface analysis (1)
- Yttrium titanate (1)
- Zero-wear (1)
- Zeta Potenzial (1)
- Zeta potential (1)
- Zirconium titanate (1)
- Zwischenmedium (1)
- a-C:H (1)
- gebundene Filme (1)
- pH-Wert (1)
- pH-value (1)
- ta-C (1)
Organisationseinheit der BAM
Eingeladener Vortrag
- nein (48)
The influence of temperature and counterbody material on the tribological properties of a-C:H coatings deposited on Cronidur 30 steel has been investigated in a lubricated ball on disk contact situation. The results show, that the wear volumes of the system increase exponentially with increasing temperature. Two different wear mechanisms seem to have a major influence: First, the abrasive action due to materials hardness and second, the tribooxidation when silicon nitride is counter material.
The influence of temperature and counterbody material on the tribological properties of a-C:H
coatings deposited on Cronidur 30 steel has been investigated in a lubricated ball on disk
contact situation with alpha-alumina and silicon nitride as counterbodies. The results show, that the wear volumes of the systems increase exponentially with increasing temperature, for alpha-alumina more than for silicon nitride. Two different wear mechanisms seem to have a
major influence: First, the abrasive action due to materials hardness and second, the tribo-oxidation when silicon nitride is counter material.
The accurate EDS microanalysis of light elements such as boron and carbon by spectrum imaging will be demonstrated using a sintered hard ceramic material composed of the three major phases titanium boride (TiB2), titanium carbide (TiC), silicon carbide (SiC) and minor phases, sub-μm in size.
The combination of these three materials leads to improved mechanical and tribological properties. Silicon carbide is a material used for mechanical seals. It has the disadvantage of reduced failsafe running functions, causing increased wear when running dry. The added titanium components (TiC and TiB2) improve the failsafe running functions. This technology has already been transferred to industrial applications.
After having checked in a previous study the influence of stroke and normal load in laboratory fretting tests accomplished with thin steel roping wires, in this paper the effect of the contact pressure (test configuration), environmental conditions (relative humidity) and reduction of the friction coefficient (lubricants) on the wear behaviour were analysed. The wires were 0.45 mm in diameter and the material was a cold-drawn eutectoid carbon steel (0.8% C) with a Tensile Strength over 2800 MPa. The tests were performed on an oscillating test rig and the volumetric wear of both specimens of the tribocouple was determined separately from three-dimensional topographies of the wear scars acquired by means of a confocal profiler, and a calculation algorithm developed in using MATLAB®. The strong effect of humidity and lubrication on wear behaviour was proved, whereas a slight effect of contact pressure was derived.
A new method for sampling wear particles directly from the lubricant reservoir has been developed and applied successfully for analyzing wear particles by high-resolution scanning electron microscopy in transmission mode having coupled energy-dispersive X-ray spectroscopy. The lubricated tribological testing was carried out with fully formulated as well as with non-formulated synthetic base oil. It was possible to analyze individual particles with dimensions as small as about 5–30 nm which are likely the 'primary' wear particles. A majority of the particles, however, are agglomerated and, thus, lead to the formation of larger agglomerates of up to a few micrometers. Chemical analysis led to the conclusion that most of the observed particles generated in formulated oil, especially the larger ones, are composed of the additives of the lubricant oil. In non-formulated base oil, the primary particles are of similar dimensions but contain only iron, chromium and oxygen, but most likely stem from the mating materials. This finding points to the fact that the main wear mechanism under lubricated conditions with fully formulated oil is more like a continuous shearing process rather than a catastrophic failure with the generation of larger primary particles. When the oil is non-formulated, however, several wear mechanisms act simultaneously and the wear rate is increased significantly. Generated larger primary particles are milled down to the nanoscale. When the oil is fully formulated, wear mainly takes places at the additive layer or tribofilm; thus, the steel surface is protected.