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公开(公告)号:DE68907956D1
公开(公告)日:1993-09-09
申请号:DE68907956
申请日:1989-02-16
Applicant: IBM
Inventor: ENGLER EDWARD MARTIN , LEE VICTOR YEE-WAY , NAZZAL ADEL ISSA , PARKIN STUART STEPHEN PAPWORTH
Abstract: Stable, bulk electrical superconductors are prepared by heating mixed metal oxides in the presence of oxygen in a closed vessel in a preheated oven for 1-5 hours at 850-900 DEG C. The final oxides are in the molar ratio Tl0.6-1.1Ca2-3Ba0.75-1.25Cu2-3O(5+ delta )-(9+ delta ), where delta is less than one.
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公开(公告)号:ES2044083T3
公开(公告)日:1994-01-01
申请号:ES89301526
申请日:1989-02-16
Applicant: IBM
Inventor: ENGLER EDWARD MARTIN , LEE VICTOR YEE-WAY , NAZZAL ADEL ISSA , PARKIN STUART STEPHEN PAPWORTH
Abstract: Stable, bulk electrical superconductors are prepared by heating mixed metal oxides in the presence of oxygen in a closed vessel in a preheated oven for 1-5 hours at 850-900 DEG C. The final oxides are in the molar ratio Tl0.6-1.1Ca2-3Ba0.75-1.25Cu2-3O(5+ delta )-(9+ delta ), where delta is less than one.
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公开(公告)号:DE68907956T2
公开(公告)日:1994-03-17
申请号:DE68907956
申请日:1989-02-16
Applicant: IBM
Inventor: ENGLER EDWARD MARTIN , LEE VICTOR YEE-WAY , NAZZAL ADEL ISSA , PARKIN STUART STEPHEN PAPWORTH
Abstract: Stable, bulk electrical superconductors are prepared by heating mixed metal oxides in the presence of oxygen in a closed vessel in a preheated oven for 1-5 hours at 850-900 DEG C. The final oxides are in the molar ratio Tl0.6-1.1Ca2-3Ba0.75-1.25Cu2-3O(5+ delta )-(9+ delta ), where delta is less than one.
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公开(公告)号:BR8901062A
公开(公告)日:1989-10-24
申请号:BR8901062
申请日:1989-03-07
Applicant: IBM
Inventor: ENGLER EDWARD MARTIN , LEE VICTOR YEE-WAY , NAZZAL ADEL ISSA , PARKIN STUART STEPHEN PAPWORTH
Abstract: Stable, bulk electrical superconductors are prepared by heating mixed metal oxides in the presence of oxygen in a closed vessel in a preheated oven for 1-5 hours at 850-900 DEG C. The final oxides are in the molar ratio Tl0.6-1.1Ca2-3Ba0.75-1.25Cu2-3O(5+ delta )-(9+ delta ), where delta is less than one.
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