Influence of sulfides on the tribological properties of composites produced by pulse electric current sintering

作     者：Seung Ho Kim 

作者机构：Department of Electronics EngineeringDankook University 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2014年第21卷第1期

页      面：95-103页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：financially supported by the Korea Foundation for International Cooperation of Science and Technology(KICOS 2008-0143) the Global Research Laboratory(GRL)Program of the National Research Foundation of Korea(NRF)funded by the Ministry of Education,Science,and Technology(MEST)of Korea(No.2010-00339) 

主　　题：ceramic composites coefficient of friction solid lubricants sulfides wear of materials 

摘      要：Self-lubricating A1203-15wt% ZrO2 composites with sulfides, such as molybdenum disulfide （MoS2） and tungsten disulfide （WSz） serving as solid lubricants, were fabricated by using the pulse electric current sintering （PECS） technique. The coefficient of friction （COF） of the A1203-15wt% ZrO2 composite without/with sulfides was in the range of 0.37-0.48 and 0.27-0.49, respectively. As the amoant of sul- fides 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.