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Abstract SiC matrix high temperature solid-lubricating composites with addition of different contents of CaF2 and Mo were fabricated by hot pressed sintering, and their tribological behavior was investigated over a… Click to show full abstract
Abstract SiC matrix high temperature solid-lubricating composites with addition of different contents of CaF2 and Mo were fabricated by hot pressed sintering, and their tribological behavior was investigated over a broad temperature range between room temperature to 1000 °C. It was found SiC matrix composite with addition of 20 vol% Mo and 30 vol% CaF2 to exhibit excellent solid lubricity and wear resistance. Especially at 1000 °C, it has the lowest friction coefficient of 0.17 and a favorable wear rate of 4.08×10−6 mm3/N m. The low friction and wear mechanisms were discussed in detail.
Journal Title: Tribology International
Year Published: 2017
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