Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

Tribological Behaviors of (Ca, Mg)-Sialon Against Steel with the Lubrication of Alcohols

ZHANG Wen-Guang1; LIU Wei-Min1; ZHANG Jun-Yan1; XUE Qun-Ji1; LI Ya-Wen2; WANG Pei-Ling2; SUN Wei-Ying 2   

  1. 1. Laboratory of Solid lubrication; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000; China; 2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:1998-12-29 Revised:1999-03-08 Published:1999-12-20 Online:1999-12-20

Abstract: The friction and wear behaviors of (Ca, Mg)-Sialon/GCr15 steel couple lubricated by alcohols such as 1-propanol 1-butanol 1-hexanol 1-octanol and 1-decanol were investigated by SRV friction and wear tester
in a ball-on-disk configuration. It was found that, as compared with dry sliding, all the alcohols not only reduced the friction coefficient of
(Ca, Mg)-Sialon sliding against GCr15 steel significantly but also reduced the wear volume of (Ca, Mg)-Sialon considerably (1-2 order).
Results of Fourier transform infrared spectroscopic (FT-IR) and GPC analyses showed that tribochemical reaction between (Ca, Mg)-Sialon
and alcohols was involved in the friction process. The formation of Si-O-Si, Si-C and Si-O-C based friction-polymer on the rubbed surfaces
is attributed to the excellent friction and wear reduction of alcohols. The lubrication mechanism of alcohols was propounded according to the
experimental results and the references.

Key words: Sialon ceramic, alcohols, tribochemical reaction, lubrication

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