发明名称 |
METHOD OF PRODUCING MATERIAL FOR A SUPERCONDUCTOR |
摘要 |
<p>A method of producing a composite material of and Nb or V used for a superconductive wire comprises vacuum - melting two kinds of raw materials, 70 wt % Cu and 30 wt % Nb or V to form a melt; scattering the melt by a rotating disc to form a plurality of fine droplets each of which includes Cu and Nb or V at substantially the same compounding rate as the raw materials; and cooling rapidly the fine droplets by spraying an inert gas onto the scattering droplets thereby providing particulate bodies each of which dendrites of Nb or V are precipitated in Cu. The fine particles are compression - molded to form a molded product. The molded product is sintered to form an ingot in which the dendrites of Nb or V are dispersed homogeneously in the Cu base. The ingot is used for producing a superconductive wire, namely, it is subjected to cold rolling to reduce its sectional area, coating with Su or Ga, and diffusion heat-treating the wire to form Nb3Sn or V3Ga in the Cu base, whereby a superconductive wire is provided in which Nb3Sn or V3 Ga are homogeneously dispersed in the Cu base.</p> |
申请公布号 |
EP0148032(B1) |
申请公布日期 |
1990.03.07 |
申请号 |
EP19840309132 |
申请日期 |
1984.12.28 |
申请人 |
HITACHI, LTD. |
发明人 |
AIHARA, KATSUZO;TADA, NAOFUMI;SUZUKI, YASUO;ISHIHARA, JOO;OGAWA, TOSHIO |
分类号 |
B22F1/00;B22F9/10;C22C1/00;C22C1/02;C22C1/04;H01B12/10;H01B13/00;H01L39/06 |
主分类号 |
B22F1/00 |
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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