| 发明名称 |
Process for making high temperature Bi-Sr-Ca-Cu oxide superconductor |
| 摘要 |
A description is given of superconducting substances having a content of Bi, Sr, Ca and Cu, and of processes for their preparation from the metal oxides within a range which is specified by the overall composition Bia(Sr,Ca)b-Cu6Ox, where a=3-24 and b=3.23-24, with an Sr/Ca atomic ratio of 1:9-9:1 and a Bi:(Ca+Sr) atomic ratio of 0.3-1.5. The transition temperature is at least 60 K. The principal phase crystallizes in the orthorhombic system. The pure compounds Bi4(Sr,Ca)4Cu2O APPROX 12 and Bi4(Sr,Ca)6Cu4O APPROX 20.
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| 申请公布号 |
US5703021(A) |
申请公布日期 |
1997.12.30 |
| 申请号 |
US19950475078 |
申请日期 |
1995.06.07 |
| 申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
VON SCHNERING, HANS-GEORG;BECKER, WINFRIED;SCHWARZ, MARTIN;HETTICH, BERNHARD;HARTWEG, MARTIN;WALZ, LEONHARD;POPP, THOMAS |
| 分类号 |
C01G1/00;C01G29/00;C04B35/00;C04B35/45;C04B35/653;H01B12/00;H01B13/00;H01L39/12;H01L39/24;(IPC1-7):H01B12/00;C04B35/626;C04B35/64 |
主分类号 |
C01G1/00 |
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