发明名称 |
SUPRALEITENDER POLYKRISTALLINER KOERPER UND VERFAHREN ZU SEINER HERSTELLUNG |
摘要 |
A superconductive polycrystalline body is produced having a composition selected from the group consisting of Y1-x(Ln)xBa2Cu3O7-y, La1-x(Ln)xBa2Cu3O7-y and a combination thereof wherein x ranges from about .01 to about 0.2, y ranges up to about 0.3, and where Ln is selected from the group consisting of Nd, Eu, Gd, Dy, Ho, Er, Tm, Yb and a combination thereof. A composition having the above constitution is made from appropriate oxides or precursors thereof and comminuted to produce a sinterable powder to which a magnetizing field is then applied. The resulting aligned powder is formed into a compact and sintered and cooled in an oxidising atmosphere to produce the superconductive body, the open porosity and grain or plate size of which have specified values.
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申请公布号 |
DE3932423(A1) |
申请公布日期 |
1990.04.12 |
申请号 |
DE19893932423 |
申请日期 |
1989.09.28 |
申请人 |
GENERAL ELECTRIC CO., SCHENECTADY, N.Y., US |
发明人 |
LIVINGSTON, JAMES DUANE, BRAINTREE, MASS., US |
分类号 |
C04B35/00;C01G1/00;C01G3/00;C04B35/45;H01B12/00;H01L39/12 |
主分类号 |
C04B35/00 |
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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