TY - JOUR A1 - Klaffke, Dieter A1 - Brand, J. A1 - Brand, C. A1 - Wittorf, R. A1 - Hartelt, Manfred T1 - Tribologische Charakterisierung metalldotierter DLC-Schichten KW - Reibung KW - Verschleiß KW - Kohlenstoffschichten KW - Metalldotierung KW - Luftfeuchte PY - 2004 SN - 0724-3472 VL - 51 IS - 4 SP - 15 EP - 19 PB - Expert Verlag CY - Renningen AN - OPUS4-4399 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schneider, Thomas A1 - Klaffke, Dieter A1 - Hartelt, Manfred T1 - Einfluss verschiedener Prüfparameter auf das tribologische Verhalten von a-C:H-Schichten bei oszillierender Gleitbewegung KW - Reibung KW - Verschleiß KW - Normalkraft KW - Temperatur KW - Luftfeuchte PY - 2005 SN - 0724-3472 VL - 52 IS - 3 SP - 12 EP - 18 PB - Expert Verlag CY - Renningen AN - OPUS4-10538 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Hartelt, Manfred A1 - Brand, C. A1 - Brand, J. A1 - Wittorf, R. T1 - Einfluss der Temperatur auf das tribologische Verhalten von DLC-Schichten N2 - Diamantähnliche Kohlenstoffschichten (DLC) zeichnen sich durch ein sehr günstiges Reibungs- und Verschleißverhalten aus. Auf vielen Werkzeugen und hochbelasteten Bauteilen ist DLC daher bereits erfolgreich im Einsatz. In naher Zukunft wird die Bedeutung dieser Schichten als Oberflächenschutz in tribologischen Systemen weiter ansteigen. Wie viele Applikationsbeispiele zeigen, ist die Leistungsfähigkeit von DLC als Schicht zur Verringerung von Reibung und Verschleiß zwar groß, weist aber auch Grenzen auf. Vor allem bei höheren Temperaturen (> 300 °C) treten Strukturveränderungen oder sogar Oxidationsvorgänge auf, die auch die tribologischen Eigenschaften der Schichten verschlechtern können. Reibungs- und Verschleißuntersuchungen (Schwingungsverschleiß) von DLC-Schichten wurden im Temperaturbereich von 25 °C bis 250 °C durchgeführt und zeigen ein schnelleres Durchreiben der Schicht bei höheren Temperaturen. Die Lebensdauer der Schichten wird mit zunehmender Prüftemperatur reduziert. Einsatzgrenzen für DLC-Schichten können abgeleitet werden. T2 - DGM-Tagung "Reibung und Verschleiß" CY - Fürth, Deutschland DA - 2004-03-10 KW - Friction KW - Wear KW - DLC KW - Temperature KW - Thermal resistance PY - 2004 DO - https://doi.org/10.1002/mawe.200400795 SN - 0933-5137 SN - 1521-4052 VL - 35 IS - 10/11 SP - 936 EP - 941 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-4662 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Wäsche, Rolf A1 - Janakiraman, N. A1 - Aldinger, F. T1 - Tribological characterisation of siliconcarbonitride ceramics derived from preceramic polymers N2 - Amorphous SiCN ceramics were prepared in a laboratory scale as disk shaped specimens with 10 mm diameter and 0.3 mm thickness. The friction and wear behaviour was characterised in gross slip fretting tests under unlubricated conditions at room temperature against steel (100Cr6) and ceramic (Al2O3). Tests with a ball-on-disk contact were performed in laboratory air with different content of water vapour. The results show clearly that the relative humidity has a significant effect on friction and wear behaviour. All tests in dry air lead to higher friction and higher wear rate than in normal air. Improved friction and wear behaviour was observed with increasing pyrolysis temperature up to 1100 °C of the SiCN specimens. This is attributed to increasingly better mechanical properties and higher stiffness of the amorphous network due to the evaporation of gaseous organic species and the formation of free graphite like carbon. KW - Ceramics KW - Preceramic polymer KW - Siliconcarbonitride KW - Friction KW - Wear PY - 2006 DO - https://doi.org/10.1016/j.wear.2005.04.031 SN - 0043-1648 VL - 260 IS - 7-8 SP - 711 EP - 719 PB - Elsevier CY - Amsterdam AN - OPUS4-12302 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Maennig, W. A1 - Westphal, K. T1 - Wechselbiegeapparatur für die in situ-Untersuchung von Zerrüttungsvorgängen im Rasterelektronenmikroskop - Specimen Support for the in Situ Observation of Bending Fatigue PY - 1979 SN - 0161-0457 SN - 1932-8745 VL - 2 IS - 3 SP - 129 EP - 134 PB - Wiley CY - Hoboken, NJ AN - OPUS4-9146 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Maennig, W. T1 - Dynamische Untersuchung von Dauerschwingproben im Rasterelektronenmikroskop (Kurzfassung) PY - 1975 SN - 0025-5300 VL - 17 IS - 6 SP - 180 PB - Carl Hanser Verlag CY - München AN - OPUS4-8301 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Beck, Uwe T1 - Tribological and mechanical investigation of SiO2 and Si3N4 coatings on fused silica and borosilicate glass N2 - Amorphous SiO2 and Si3N4 plasma-enhanced chemical vapour deposited (PECVD) coatings were deposited on two different substrate materials (fused silica and borosilicate glass), with three coating thicknesses (0.1, 0.5, and 1.0 µm). The mechanical properties (hardness and elastic modulus) were determined by depth-sensing indentation, with loads from 700 mN down to 0.1 mN. Tribological behaviour was studied in instrumented oscillating sliding tests at room temperature with a ball-on-flat arrangement, in which the coated disc was tested against an alumina ball, at a load of 1 N. Interpretation of the measurement of hardness and modulus of the coatings has to take into consideration the influence of layer thickness and the effect of the substrate. Tensile film stress and crack generation were only observed for Si3N4 on fused silica above a threshold thickness. Friction and wear measurements show that the coating has an effect on friction, while wear is affected by the thin coatings only for a short running-in phase. The morphology of the wear scars indicates that the coatings have good adhesion. Despite crack generation, delamination effects were not observed. Indentation patterns similarly showed excellent lateral homogeneity of the mechanical properties over the entire film surface, and indicated that load-displacement curves may be used to characterise the system. KW - Mechanical properties KW - SiO2 coating KW - Si3N4 coating KW - Depth-sensing indentation KW - Oscillating sliding test KW - Friction KW - Wear KW - PECVD PY - 2001 DO - https://doi.org/10.1002/tt.3020080105 SN - 1354-4063 SN - 1557-685X VL - 8 IS - 1 SP - 57 EP - 72 PB - Coppin CY - Deal AN - OPUS4-25598 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Österle, Werner A1 - Klaffke, Dieter A1 - Griepentrog, Michael A1 - Gross, U. A1 - Kranz, I. A1 - Knabe, Ch. T1 - Potential of wear resistant coatings on Ti-6Al-4V for artificial hip joint bearing surfaces N2 - Tribological screening tests (simple, reciprocating ball-on-flat tests) were performed with the objective to identify an appropriate coating for the articulating surfaces of artificial hip joints whose acetabular cups and femoral stems are made from Ti–6Al–4V alloy, which is appreciated for its light weight, good biocompatibility and elastic properties similar to those of natural bone. Standard coatings like TiN or CrN performed better than more complicated multi-layer systems, though not as good as different types of amorphous carbon coatings, generally referred to as diamond-like carbon or DLC coatings. Among the latter, hydrogenated amorphous carbon (a-C:H) displayed the best properties, especially if the hydrogen content was increased by reducing the bias voltage during PA-CVD-deposition. The optimised a-C:H coating revealed the most promising wear behaviour under the applied testing conditions, i.e. the increase of linear wear with the number of cycles was close to zero. Regarding the materials examined in this study, correlation of wear with mechanical properties obtained by nano-indentation revealed that high hardness was not an adequate criterion for selecting appropriate coatings. A high ratio of hardness and elastic modulus (H/E) proved to be more important. Microstructural and micro-analytical investigations revealed transformation of TiN and CrN to TiO2 and Cr2O3, respectively, and amorphous carbon was, at least partly, transformed to graphite. Furthermore, incorporation of Al2O3 from the ball was observed at a very fine scale. The wear debris of favourable coatings always formed agglomerates of nano-scale particles. It was shown that commercial nano-particles of Al2O3, Cr2O3 and carbon black are comparable to particles generated by the tribological tests. However, it is uncertain whether they are comparable to those formed during simulator studies or in vivo. Furthermore, the performance of the favourable coating has to be tested in a hip joint simulator before its potential for application in prostheses can be assessed. KW - Coating KW - Implant KW - Titanium alloy KW - DLC KW - Wear debris KW - Nano-particles PY - 2008 DO - https://doi.org/10.1016/j.wear.2007.04.001 SN - 0043-1648 VL - 264 IS - 7-8 SP - 505 EP - 517 PB - Elsevier CY - Amsterdam AN - OPUS4-16711 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Santner, Erich A1 - Spaltmann, Dirk A1 - Woydt, Mathias T1 - Influences on the tribological behaviour of slip-rolling DLC-coatings N2 - Diamond like carbon (DLC)-coatings are applied very successfully on computer discs. Sliding friction tests confirm their high performance as dry lubricants with friction coefficients (COFs) below 0.1. In contrast to sliding tests, until very recently most of the DLC-coatings failed in slip-rolling test after fewer cycles than uncoated samples. However, present tests with DLC-coatings of seven different suppliers show a more promising tribological behaviour under slip-rolling conditions. The DLC-coatings were deposited onto steel 100Cr6, HRC 60, with a thickness of 2–3 ?m. The counter bodies were uncoated, grinded or polished 100Cr6 discs with 30 mm radius of curvature. The tests were performed on a twin disc testing rig (Amsler type) with paraffin oil under boundary/mixed lubrication and rolling with 10% slip. The initial, average Hertzian contact pressure was adjusted to Pm = 1.0, 1.25, and 1.5 GPa. The failure criterion was defined as the occurrence of a single damaged area larger than 1 mm2, which was controlled by optical microscopy (OM). An acoustic emission (AE) measurement system was installed as an additional online control for coating failure. The stressed coatings and the chipping areas were analyzed by OM, SEM, EDX, AFM and Raman spectroscopy. Until now, the results reveal that a large scatter in lifetime of coatings occurs not only between samples of different coaters but also between the samples of one single batch. The highest lifetime reached by a DLC-coating under these testing conditions is 10 × 106 cycles. That is the highest life time for a coating tested under the testing conditions above in our laboratory so far. The following factors were identified to influence the life time of the coatings: coating thickness, interlayer type, topography of the coatings, counter body roughness and mechanical properties. But the most important factor determining the life time of the coatings is that the coating process does produce homogenous layers free of faults. KW - DLC-coatings KW - Slip-rolling KW - Life time KW - Acoustic emission PY - 2005 DO - https://doi.org/10.1016/j.wear.2005.01.008 SN - 0043-1648 VL - 259 SP - 752 EP - 758 PB - Elsevier CY - Amsterdam AN - OPUS4-7557 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Maennig, Wolfgang-Werner A1 - Sander, Harro T1 - Magnetische und rasterelektronenmikroskopische Untersuchung von Zerrüttungsvorgängen - ein Beitrag zur interdisziplinären Bearbeitung von Schwingfestigkeitsproblemen PY - 1977 SN - 0025-5300 VL - 19 IS - 8 SP - 322 EP - 331 PB - Carl Hanser Verlag CY - München AN - OPUS4-8737 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Czichos, Horst A1 - Klaffke, Dieter A1 - Santner, Erich A1 - Woydt, Mathias T1 - Advances in tribology: the materials point of view PY - 1995 SN - 0043-1648 VL - 190 SP - 155 EP - 161 PB - Elsevier CY - Amsterdam AN - OPUS4-9560 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wäsche, Rolf A1 - Gräber, H.-G. A1 - Klaffke, Dieter T1 - Tribologische Untersuchung zum Verschleißverhalten von keramischen Zahnersatzwerkstoffen KW - Dentalkeramik KW - Bearbeitbarkeit KW - Zwischenmedium KW - pH-Wert KW - Dental ceramic KW - Machinability KW - Liquid media KW - pH-value PY - 2007 SN - 0724-3472 VL - 54 IS - 3 SP - 29 EP - 32 PB - Expert Verlag CY - Renningen AN - OPUS4-15737 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kloß, Heinz A1 - Klaffke, Dieter T1 - Untersuchungen und Modellrechnungen für eine Verschleißprognose metallischer Werkstoffe KW - Metalle KW - Verschleißprognose KW - Kontaktmechanik KW - Oberflächentopographie KW - Scherenergiedichte PY - 2006 SN - 0724-3472 VL - 53 IS - 6 SP - 14 EP - 17 PB - Expert Verlag CY - Renningen AN - OPUS4-14798 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Urchegui, M.A. A1 - Hartelt, Manfred A1 - Klaffke, Dieter A1 - Gómez, X. T1 - Laboratory fretting tests with thin wire specimens KW - Wires KW - Fretting KW - Friction test KW - Unlubricated friction PY - 2007 SN - 1354-4063 SN - 1557-685X VL - 13 SP - 67 EP - 81 PB - Coppin CY - Deal AN - OPUS4-14781 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Maennig, W. T1 - Beobachtung und Orientierungsbestimmung der Oberflächenkristallite polykristalliner Al-99,999-Proben bei Biegewechselbeanspruchung PY - 1980 SN - 0025-5300 VL - 22 IS - 2 SP - 65 EP - 74 PB - Carl Hanser Verlag CY - München AN - OPUS4-9388 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Schultrich, B. A1 - Weihnacht, V. T1 - Tribological behaviour of ta-C coatings under water lubricated conditions KW - Friction KW - Wear KW - ta-C coatings KW - Water lubrication PY - 2005 UR - http://www.om.ugal.ro/AnnalsFasc8Tribology/pdf/2005/4-Annals2005-2-Klaffke.pdf SN - 1221-4590 SN - 1220-0824 SP - 24 EP - 28 CY - Gala¸ti AN - OPUS4-12361 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wäsche, Rolf A1 - Klaffke, Dieter A1 - Steinborn, Gabriele T1 - Tribological testing of Ca-Ba infiltrated zirconia KW - Friction KW - Wear KW - Ca-Ba fluoride KW - Infiltration KW - Porous zirconia PY - 2005 UR - http://www.om.ugal.ro/AnnalsFasc8Tribology/pdf/2005/9-Annals2005-3-Wasche.pdf SN - 1221-4590 SN - 1220-0824 SP - 53 EP - 59 CY - Gala¸ti AN - OPUS4-12365 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Maennig, Wolfgang-Werner T1 - Umformverhalten von Rein- und Reinstaluminium bei Biegewechselbeanspruchung (I) PY - 1982 SN - 0002-6689 VL - 58 IS - 4 SP - 221 EP - 225 PB - Giesel CY - Isernhagen AN - OPUS4-36321 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Maennig, Wolfgang-Werner T1 - Umformverhalten von Rein- und Reinstaluminium bei Biegewechselbeanspruchung (II) PY - 1982 SN - 0002-6689 VL - 58 IS - 5 SP - 271 EP - 276 PB - Giesel CY - Isernhagen AN - OPUS4-36322 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Santner, Erich A1 - Klaffke, Dieter A1 - Meine, Kerstin A1 - Polaczyk, Christoph A1 - Spaltmann, Dirk T1 - Demonstration of topography modification by friction processes and vice versa N2 - Contact formation and development are the basis of friction and wear modelling and understanding. Unanimously topography formation and development in friction contacts are regarded of highest importance for understanding and modelling friction processes. The frequently found running in behaviour of sliding contacts is—aside from the build up of reaction and transfer layers-at least partly caused by the topography development due to friction processes until a stable equilibrium state is reached. Experimental results of friction and topography measurements are presented which demonstrate the mutual modification of friction and contact topography. A special experimental set up with an AFM allowed to correlate the measured friction forces with the contact position and the topography at this point. In this way, friction force transitions and changes can be assigned to topography changes due to abrasion, adhesion and wear particle agglomeration. Contact surfaces with artificial regular structures have been prepared to avoid problems with topography and friction correlation due to the statistical nature of roughness on technical contact surfaces. The friction effects of roughness were simulated by etched ditches of defined width, depth and distance on silicon or metal surfaces. This allowed to explain the mutual influences of topography and friction. The effect of a single ‘asperity’ and of the 'roughness structures' could be demonstrated. Topography measurements with an AFM correlated with the friction force could help to understand friction changes without changing any parameter. KW - Friction KW - Roughness KW - Topography KW - Adhesion KW - Wear PY - 2006 DO - https://doi.org/10.1016/j.triboint.2005.04.029 SN - 0301-679X VL - 39 SP - 450 EP - 455 PB - Butterworth-Heinemann CY - Oxford AN - OPUS4-31744 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wäsche, Rolf A1 - Klaffke, Dieter A1 - Wötting, G. T1 - Tribological behaviour of structural Si-based ceramics in fretting tests at room temperature N2 - The friction and wear behaviour of SiC, Si3N4 and SiC/Si3N4 composite ceramics were investigated with oscillating sliding (gross slip fretting) at room temperature. The influence of counter body material and the humidity of the surrounding air was studied with a ball-on-disc configuration with different ball materials (1000Cr6, Al2O3 SiC and Si3N4). The effect of RH on friction is marginal with exception of SiC (low friction) as counter body material. The wear behaviour, however, is strongly affected by humidity, showing inverse trends for different counter body materials. Consequently, the wear behaviour of a tribo couple can be improved by selecting an adequate mating material. The results reveal the necessity to control RH in tribological tests. For estimation of the performance of tribo couples under varying environmental conditions, a variation of RH is required. In tribo couples with single phase SiC, either as ball or disc, the tribological behaviour of the system is dominated by SiC. The friction behaviour of the composite material is in between the behaviour of the two single phase materials, Si3N4 and SiC, whereas the wear behaviour is very similar to that of single phase Si3N4. KW - Silicon carbide KW - Silicon nitride KW - Particulate composite KW - Fretting KW - Humidity KW - Mating material PY - 2009 DO - https://doi.org/10.1007/s11249-009-9413-y SN - 1023-8883 SN - 1573-2711 VL - 33 IS - 3 SP - 211 EP - 219 PB - Springer Science Business Media B.V. CY - Dordrecht AN - OPUS4-19000 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gemeinert, Marion A1 - Dörfel, Ilona A1 - Griepentrog, Michael A1 - Gross, U. A1 - Klaffke, Dieter A1 - Knabe, C. A1 - Kranz, I. A1 - Österle, Werner T1 - Biological response to micron- and nanometer-sized particles known as potential wear products from artificial hip joints: Part I: Selection and characterization of model particles KW - Hip joint endoprostheses KW - Wear products KW - Particle size distribution KW - Model particles KW - Dispersing behavior of particles PY - 2009 DO - https://doi.org/10.1002/jbm.a.31952 SN - 1549-3296 SN - 1552-4965 VL - 89A IS - 2 SP - 379 EP - 389 PB - Wiley CY - Hoboken, NJ AN - OPUS4-19345 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kranz, I. A1 - Gonzalez, J.B. A1 - Dörfel, Ilona A1 - Gemeinert, Marion A1 - Griepentrog, Michael A1 - Klaffke, Dieter A1 - Knabe, C. A1 - Österle, Werner A1 - Gross, U. T1 - Biological response to micron- and nanometer-sized particles known as potential wear products from artificial hip joints: Part II: Reaction of murine macrophages to corundum particles of different size distributions KW - Macrophages KW - Cytokines KW - Nanoparticles (NP) KW - Microparticles (MP) KW - Corundum PY - 2009 DO - https://doi.org/10.1002/jbm.a.32121 SN - 1549-3296 SN - 1552-4965 VL - 89A IS - 2 SP - 390 EP - 401 PB - Wiley CY - Hoboken, NJ AN - OPUS4-19346 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter T1 - Fretting wear of ceramic-steel - the importance of wear ranking criteria PY - 1985 SN - 0043-1648 VL - 104 SP - 337 EP - 343 PB - Elsevier CY - Amsterdam AN - OPUS4-34129 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klaffke, Dieter A1 - Kuntze, Gerd T1 - Wechselbiegmaschine für Ermüdungsuntersuchungen ohne und mit Reibbeanspruchung PY - 1985 SP - 18 EP - 19 PB - GIT-Verl. CY - Darmstadt AN - OPUS4-34130 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wäsche, Rolf A1 - Yarim, Rasim A1 - Klaffke, Dieter A1 - Hartelt, Manfred T1 - Oscillating sliding wear behaviour of SiC, TiC, TiB2, 59SiC-41TiB2 and 52SiC-24TiC-24TiB2 materials up to 750°C in air N2 - The tribological behaviour of different monolithic and composite ceramics was evaluated in the temperature range between room temperature and 750°C. The test method was oscillating sliding with a ball-on-disk arrangement in an SRV machine. Alumina balls were used as counter body. The friction behaviour was determined on-line, and the wear behaviour was determined from calculations on the basis of wear scar dimensions and profilometric measurements. The friction depends on temperature and shows an increase for most materials for increasing temperature; the smallest friction at all temperatures is found for monolithic TiC. The wear behaviour shows different trends for the different materials. In tests against SiC a maximum of wear is found at 500°C, for TiC at 200°C and for TiB2 at 750°C. The composite ceramics suffer the smallest wear of all materials in the range from 200°C to 500°C. PY - 2006 DO - https://doi.org/10.1002/tt.8 SN - 1354-4063 SN - 1557-685X VL - 12 SP - 99 EP - 111 PB - Coppin CY - Deal AN - OPUS4-32977 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -