发明名称 |
Method of producing Pb-stabilized superconductor precursors and method of producing superconductor articles therefrom |
摘要 |
Metal oxide superconductor powder precursors are prepared in an aerosol pyrolysis process. A solution of the metal cations is introduced into a furnace at 600 DEG -1000 DEG C. for 0.1 to 60 seconds. The process produces micron to submicron size powders without the usual loss of the lead stabilizer. The resulting powders have a narrow particle size distribution, a small grain size, and are readily converted to a superconducting composition upon subsequent heat treatment. The precursors are placed in a metal body deformed to form a wire or tape and heated to form a superconducting article. The fine powders permit a substantial reduction in heat treatment time, thus enabling a continuous processing of the powders into superconducting wire, tape or multifilamentary articles by the powder-in-tube process.
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申请公布号 |
US5395821(A) |
申请公布日期 |
1995.03.07 |
申请号 |
US19920969070 |
申请日期 |
1992.10.30 |
申请人 |
MARTIN MARIETTA ENERGY SYSTEMS, INC. |
发明人 |
KROEGER, DONALD M.;HSU, HUEY S.;BRYNESTAD, JORULF |
分类号 |
C01B13/18;C01G29/00;H01L39/24;(IPC1-7):H01L39/12;H01B12/00 |
主分类号 |
C01B13/18 |
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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