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US 10,294,548 B1Granted
Hard and super-hard metal alloys and methods for making the same
AssigneeU.S. Department of Energy
InventorsIver E. Anderson, Bruce A. Cook, Joel Harringa, Adam Boesenberg, Joel Rieken, Dave Byrd
Life of this patent
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Abstract
The present invention relates to Cu33Al17 alloys and Cu33Al17-based bulk alloys and coatings that exhibit significantly increased hardness characteristics compared to traditional copper-aluminum alloys.
Claims15
A method for producing Cu33Al17 based peritectoid alloys in bulk form comprising:
- mixing Cu powder and Al powder in sufficient amounts to form a blended copper-aluminum based mixture consisting essentially of:
- 59.2-62 at. % Cu and 40.8-38 at. % Al with the remainder consisting of one or more elements selected from the group consisting of:
- Zn, Sn, Ga, Ge and combinations thereof, or unavoidable impurities;
- cold pressing the blended copper-aluminum based mixture to form a copper-aluminum green body;
- and
- sintering the pressed copper aluminum to form a uniform, single-phase Cu33Al17 peritectoid alloy.
3 more elements
A method for producing Cu33Al17 based peritectoid alloys in bulk form comprising:
- mixing Cu powder and Al powder in sufficient amounts to form a blended copper-aluminum based mixture consisting essentially of:
- 59.2-62 at. % Cu and 40.8-38 at. % Al with the remainder consisting of one or more elements selected from the group consisting of:
- Zn, Sn, Ga, Ge and combinations thereof, or unavoidable impurities;
- cold pressing the blended copper-aluminum based mixture to form a copper-aluminum green body;
- and
- hot pressing the pressed copper aluminum to form a uniform, single-phase Cu33Al17 alloy.
3 more elements
Dependencies are inferred from the claim text.