Dry friction and wear rates as under liquid lubrication of ceramic/carbon couples up to 450°C
Abstract
In a high temperature tribometer, stationary carbon has been tested against different rotating ceramics (SiC, Si3N4, Al2O3, WC‐6Ni, MgO‐ZrO2, (Ti, Mo)(C, N)) and stainless steel (DIN 1.4876). The rotating discs were grinded, polished and/or lapped. For most material combinations, the wear morphology is known from available literature. A transfer film with a typical wear pattern was found on the rotating disc. The combination of antimony graphite EK3245 against MgO‐ZrO2 did not form carbonaceous transfer layer. Through advanced variation of the roughness up to Rpk=0.011 μm, the wear rate has been reduced to Kv ≈ 3.5×10−8 mm3/N m at a stable coefficient of friction in a “millirange” of μ∼0.008 for a sliding distance of 20.000 m.
Keywords
Citation
Kleemann, J. and Woydt, M. (2004), "Dry friction and wear rates as under liquid lubrication of ceramic/carbon couples up to 450°C", Industrial Lubrication and Tribology, Vol. 56 No. 1, pp. 38-51. https://doi.org/10.1108/00368790410515371
Publisher
:Emerald Group Publishing Limited
Copyright © 2004, Emerald Group Publishing Limited