发明名称 |
COPPER ALLOY AND PROCESS FOR MANUFACTURING SAME |
摘要 |
A copper alloy of the present invention contains 5.00 to 8.00 atomic percent of Zr and includes Cu and a Cu-Zr compound, and two phases of the Cu and the Cu-Zr compound form a mosaic-like structure which includes no eutectic phase and in which when viewed in cross section, crystals having a size of 10 µm or less are dispersed. This copper alloy is formed by a manufacturing method including a sintering step of performing spark plasma sintering on a Cu-Zr binary system alloy powder at a temperature of 0.9Tm°C or less (Tm(°C): melting point of the alloy powder) by supply of direct-current pulse electricity, the Cu-Zr binary system alloy powder having an average grain diameter of 30 µm or less and a hypoeutectic composition which contains 5.00 to 8.00 atomic percent of Zr. The Cu-Zr compound may include at least one of Cu 5 Zr, Cu 9 Zr 2 , and Cu 8 Zr 3 . |
申请公布号 |
EP2915890(A4) |
申请公布日期 |
2016.06.15 |
申请号 |
EP20130850956 |
申请日期 |
2013.10.24 |
申请人 |
NGK INSULATORS, LTD.;TOHOKU UNIVERSITY |
发明人 |
GOTO, TAKASHI;KIMURA, HISAMICHI;INOUE, AKIHISA;MURAMATSU, NAOKUNI |
分类号 |
C22C9/00;B22F1/00;B22F3/14;B22F3/24;C22F1/00;C22F1/08;H01B1/02;H01B13/00 |
主分类号 |
C22C9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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