Heat-treatable platinum-gallium-palladium alloy for jewelry
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United States of America Patent
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May 13, 2003
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N/A
app pub date -
Sep 10, 2001
filing date -
Dec 1, 1998
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Abstract
A method of making jewelry comprising formulating a platinum alloy of at least 95 weight percent platinum, 1 to 5 weight gallium and palladium in an amount of less than about 3 weight percent, heat treating this alloy to increase the Vickers hardness by at least 20% but to not greater than a Vickers hardness of 350.
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