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Contact voltage drop and wear of self-lubricating Ag-Pd alloy base composite materials

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2 Author(s)
Okada, Katsuzo ; Fac. of Eng., Yamanashi Univ., Kofu, Japan ; Yoshida, M.

Wrought self-lubricating Ag-Pd alloy base composite materials containing graphite are described and the contact voltage drop, wear, and friction of self-lubricating brushes and the novel metal-alloy slip rings are studied. The study indicates that: (1) wrought composites with evenly dispersed graphite in Ag/Pd alloy can be produced; (2) hardness of the wrought composites is less than that for sintered ones; (3) the graphite content that produces the minimum contact voltage drop and wear with a low friction coefficient was determined; and (4) in the case of the contact between the Ag-10% Pd-5%C wrought brush and the Cu-10%Ag slip ring, the contact drop, wear, and friction are significantly small

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Components, Hybrids, and Manufacturing Technology, IEEE Transactions on  (Volume:11 ,  Issue: 1 )