Influence of Tribochemical Reaction Products on Friction and Wear of Silicon Nitride at Elevated Temperatures in Reactive Environments
作者:
Dong Soo Park,
Steven Danyluk,
Michael J. McNallan,
期刊:
Journal of the American Ceramic Society
(WILEY Available online 1992)
卷期:
Volume 75,
issue 11
页码: 3033-3039
ISSN:0002-7820
年代: 1992
DOI:10.1111/j.1151-2916.1992.tb04383.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
Friction coefficients and wear rates of hot‐pressed Si3N4have been measured in a ball‐on‐flat linear‐sliding geometry at temperatures ranging from room temperature to 1273 K in Ar and air containing up to 63% H2O. In inert environments, the friction coefficients (ranging between 0.6 and 0.7) are independent of temperature, and wear rates increase with temperature. In oxidizing environments, the friction and wear are reduced by the presence of tribochemical reaction products. Friction coefficients and wear rates are lowered when the wear debris spontaneously forms into rolls, oriented perpendicular to the direction of relative motion, at high H2O levels in the temperature range of 873 to
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