Electric contact material for connector and method for producing same
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United States of America Patent
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May 8, 2018
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N/A
app pub date -
Sep 10, 2014
filing date -
Sep 30, 2013
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Abstract
An electric contact material for a connector includes a base material made of a metal material; an alloy layer that is formed on the base material and made of an alloy containing at least three elements including Sn and Cu as well as at least one metal selected from Zn, Co, Ni, and Pd; and a conductive coating layer formed on the surface of the alloy layer. The alloy layer contains an intermetallic compound obtained by replacing some of the Cu atoms in Cu6Sn5 with at least one metal selected from Zn, Co, Ni, and Pd. It is preferable that the content of at least one metal selected from Zn, Co, Ni, and Pd in the alloy layer is in a range of 1 to 50 atom % when the total content of the metal and Cu is regarded as 100 atom %.
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