Cobalt Silicide-Containing Copper Alloy
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United States of America Patent
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Jun 8, 2016
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Jul 23, 2015
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Abstract
The present invention discloses copper alloy containing cobalt and silicon, which comprises (in percentage of weight): 69% to 92% of copper; 6.5% to 30.5% of zinc; 0.01% to 3% of cobalt; and 0.01% to 0.5% of silicon; wherein the total content of copper and zinc is greater than 95%, and the content of inevitable impurities is less than 0.2%. Preferably, the copper alloy comprises matrix phases of copper-zinc α solid solution and CoxSiy precipitated phases; the CoxSiy precipitated phases are dispersedly distributed on a matrix phase; the percentage of the matrix phases by area is greater than or equal to 95%; and, the percentage of the CoxSiy precipitated phases by area is 0.01% to 5%.
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