Study on Physical and Mechanical Properties of Cu/MoS₂ Composites

Abstract:

Cu-3wt. %MoS2-7wt. %Mo and Cu-3wt. %MoS2 composites were prepared by repressing, re-sintering and vacuum hot pressing, respectively. Microstructures were characterized by optical metallographic microscope, EDS, SEM and X-ray diffraction analysis, respectively. The micro hardness, electric conductivity and density of samples were separately measured as well. Results show that the micro hardness of Cu-3wt. % MoS2-7wt. % Mo composites is about 33.3% higher than that of Cu-3wt. %MoS2 composites. The increase in micro hardness is attributed to the presence of Mo. The electric conductivity of Cu-3wt. %MoS2 and Cu-3wt. %MoS2-7wt. % Mo prepared by vacuum hot pressing were 80.6 % and 63.8% IACS, respectively, which is an increase compared with values of 80.2 % and 57.3% IACS of samples obtained by repressing and re-sintering.

• Periodical: Key Engineering Materials (Volumes 575-576)
• Pages: 156-159
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.575-576.156
• Online since: September 2013
• Authors: Dou Qin Ma, Jing Pei Xie, Ji Wen Li, Ai Qin Wang, W.Y. WANG, Li Ke Cui, Yin Di Zhang
• Keywords: Characterization, Microstructure, Powder Metallurgy, Self-Lubricating Materials

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