| 摘要 |
PURPOSE:To improve productivity, by a method wherein raw materials for an oxide of a stratified perovskite structure superconductor is sintered by adding a specific organic binder and plasticizer and processing into a predetermined form. CONSTITUTION:As an organic binder, 0.7-1.5wt.% of either polyvinyl acetate or polyvinyl butyral or both of them and a plasticizer are added to raw materials for an oxide of a stratified perovskite structure superconductor and they are made into a slurry by kneading them with plasticizer along with a solvent. A raw sheet is manufactured by forming the slurry into a sheetlike state in a fixed thickness and drying the same. Then a sheetlike superconductor of oxide is obtained by sintering the raw sheet by processing the same into a predetermined form. An oxide of A-Ba-Cu [provided that A is Y, Sc (rate earth element)] or that of La-B-Cu (provided that B is Ca, Sr) or that of Y-Sr- Cr-Cu is used as the raw materials for the oxide of the stratified perovskite structure superconductor. In addition, La, Yb, Tm, Er, Ho, Dy, Gd are used as the rare earth.
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