Tribological Test of Different Ceramics in Different Humidity Conditions

Abstract:

The sliding friction behaviour of several ceramics, SiC,TiC,TiB₂ and their multiphase composite, had been studied under different humidity against Al₂O₃ ceramic ball. The results showed that, although the friction coefficients decreased along with humidity increased for all ceramics samples , the wear of ceramics had different performance. In high humidity condition, SiC can react with water in air to form oxide film enhance decreasing the wear. The wear rate of multiphase composite of SiC-TiC-TiB₂ are nearly not affect by humidity and are much smaller than for other ceramic.Key words: silicon carbide; titanium carbide; titanium boride; ceramic; oscillating sliding; humidity

• Periodical: Key Engineering Materials (Volume 633)
• Pages: 463-466
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.633.463
• Online since: November 2014
• Authors: Yu Hong Chen
• Keywords: Humidity, Oscillating Sliding, Silicon Carbide (SiC), Titanium Boride, Titanium Carbide

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