发明名称 |
Method of fabricating superconducting ceramic pipe |
摘要 |
A method of fabricating a superconducting ceramic pipe including the steps of: melting a ceramic powder having a predetermined composition to form a melt; filling a supporting tube with the melt by a suction caused by a vacuum pressure; partially solidifying an outer part of the melt near the tube to form a shell (i.e., a ceramic pipe); discharging an inner unsolidified part at the center of the tube from the tube by gravity, to form a solidified ceramic pipe on the inside surface of the tube; and heat treating the ceramic pipe to convert it into a superconducting pipe. When a supporting tube with a bottom plate is used, the melt is poured into the tube, and the tube is turned over to remove an unsolidified melt, whereby a superconducting ceramic pipe with a bottom is fabricated.
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申请公布号 |
US5266557(A) |
申请公布日期 |
1993.11.30 |
申请号 |
US19910798246 |
申请日期 |
1991.11.26 |
申请人 |
FUJITSU LIMITED;ABE, YOSHIHIRO |
发明人 |
ABE, YOSHIHIRO;HOSONO, HIDEO;AKAMATSU, TAKESHI |
分类号 |
B28B21/36;C01G1/00;C01G29/00;C04B35/45;C04B35/653;H01B12/00;H01B12/12;H01B13/00;H01L39/24;(IPC1-7):H01L39/12 |
主分类号 |
B28B21/36 |
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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