发明名称 |
METHOD OF FABRICATING AN ELONGATED ARTEFACT. |
摘要 |
A component (10) for making A15 Nb3Sn superconducting wire is of plane-filling cross-section after removing temporary additions (6, 7). It consists of a central pillar (1) of aluminium (later replaced by tin) surrounded by a two-deep array of polygonal copper columns 2/2a containing niobium rods. Many (e.g. 61) components (10) are voidlessly stacked together and extruded. The niobium rods adopt and retain a uniform distribution with minimum intervening material. This ''sixty-one'' member retains its shape during the extrusion and is itself of plane-filling cross-section. Several of them are voidlessly stacked together and on heat-treatment of the whole, the tin diffuses over a relatively short path and hence consistently into the rods, whereby there is formed a kilofilament Nb3Sn wire. |
申请公布号 |
GB2246727(A) |
申请公布日期 |
1992.02.12 |
申请号 |
GB19910014614 |
申请日期 |
1991.07.05 |
申请人 |
* NATIONAL RESEARCH DEVELOPMENT CORPORATION |
发明人 |
COLIN RUSSELL * WALTERS;JAN EDGAR * EVETTS;FRANCIS JOHN VERNON * FARMER;THOMAS JOSEPH * HAWKSLEY |
分类号 |
H01B12/10;H01B13/00;H01L39/20;H01L39/24 |
主分类号 |
H01B12/10 |
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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