The Tribological Reaction Accompanying Friction and Wear of Silicon Nitride Containing Titanium Nitride

[+] Author and Article Information
Y. Imada, K. Kamamura, F. Honda, K. Nakajima

Toyota Technological Institute, Nagoya, Japan

J. Tribol 114(2), 230-235 (Apr 01, 1992) (6 pages) doi:10.1115/1.2920878 History: Received January 05, 1990; Revised October 07, 1991; Online June 05, 2008


Effect of humidity in atmosphere gas, air, or argon, is investigated for the tribochemical reaction in Si3 N4 – 23 percent TiN-Si3 N4 – 23 percent TiN sliding contact system using a pin-on-plate type testing machine by reciprocal movement of pin against plate. An examination is also conducted on Si3 N4 – Si3 N4 couple in comparison with the above system. The experimental results have shown that the wear rate decreases with increasing humidity, and the wear property is somewhat improved by adding a suitable amount of TiN to Si3 N4 . Reaction products formed on the interface under the sliding contact are analysed by using EPMA and XPS. It is confirmed that SiO2 (or TiO2 ) is produced on the surface during friction and wear, and the amount of SiO2 (or TiO2 ) increases with the increase of humidity. Formation of NH3 caused by development of tribochemical reaction on friction surface is examined by a spectrometric study using Nessler’s reagent. The results show that the formation of NH3 is connected directly with the amount of SiO2 (or TiO2 ), and that three types of formation rate are observed depending on the humidity.

Copyright © 1992 by The American Society of Mechanical Engineers
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