发明名称 |
PROCESS FOR THE PREPARATION OF HG-BA-CA-CU-O SUPERCONDUCTORS |
摘要 |
Process for manufacturing high temperature superconductor consists of i)preparing BaCaCu2O5+x and CaCuO2+x at 800-920 deg.C with conventional solid state reaction, ii)mixing BaCaCu2O5+x and mercury oxide at a molecular ratio of one to one and reacting at 800-820 deg.C in mercury vapor pressure of 100-300 atmosphere to give HgBa2CaCu2O6+x, iii)mixing HgBa2CaCu2O6+x and CaCuO2+x at a molecular ratio of 1:0.5-1 and reacting at 820-850 deg.C in mercury vapor pressure of 100-300 atmosphere to give HgBa2Ca2Cu3O8+x, iv)treating HgBa2Ca2Cu3O8+x with oxygen at 250-300 deg.C in 1 atmosphere.
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申请公布号 |
KR970007311(B1) |
申请公布日期 |
1997.05.07 |
申请号 |
KR19930028643 |
申请日期 |
1993.12.20 |
申请人 |
POSCO;RIST |
发明人 |
LEE, SUNG-IK;LEE, SURGE;JOO, MAN-KIL;KIM, KOO-HWA |
分类号 |
C01G3/00;C01G13/00;C04B35/45;(IPC1-7):C01G3/00 |
主分类号 |
C01G3/00 |
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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