Influence of sulfides on the tribological properties of composites produced by pulse electric current sintering
来源期刊：International Journal of Minerals Metallurgy and Materials2014年第1期
论文作者：Seung Ho Kim
文章页码：95 - 103
摘 要：Self-lubricating Al2O3-15wt% ZrO2 composites with sulfides,such as molybdenum disulfide（MoS2） and tungsten disulfide（WS2） serving as solid lubricants,were fabricated by using the pulse electric current sintering（PECS） technique.The coefficient of friction（COF） of the Al2O3-15wt% ZrO2 composite without/with sulfides was in the range of 0.37-0.48 and 0.27-0.49,respectively.As the amount of sulfides increased,the COF and the wear rate decreased.The reduction in COF and wear rate of the sulfide-containing composite is caused by a reduction in shear stresses between the specimen and the tribological medium due to the formation of a lubricating film resulting from the lamellar structure of sulfides located on the worn surface.
Seung Ho Kim
Department of Electronics Engineering,Dankook University
摘 要：Self-lubricating Al2O3-15wt% ZrO2 composites with sulfides,such as molybdenum disulfide（MoS2） and tungsten disulfide（WS2） serving as solid lubricants,were fabricated by using the pulse electric current sintering（PECS） technique.The coefficient of friction（COF） of the Al2O3-15wt% ZrO2 composite without/with sulfides was in the range of 0.37-0.48 and 0.27-0.49,respectively.As the amount of sulfides increased,the COF and the wear rate decreased.The reduction in COF and wear rate of the sulfide-containing composite is caused by a reduction in shear stresses between the specimen and the tribological medium due to the formation of a lubricating film resulting from the lamellar structure of sulfides located on the worn surface.
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