| 摘要 |
PURPOSE:To promote improvement of critical current value, by orienting C axis radiately to the direction applying current in the titled sintered material having perovskite type layer structure. CONSTITUTION:In oxide superconductive ceramic linear sintered material having perovskite type layer structure composed of IIa metal, IIIa metal and copper, C axis is oriented radiately to the direction applying current. An oxide superconductive ceramic powder having perovskite type layer structure formed from IIa metal, IIIa metal and copper having >=3 aspect ratio and 0.1-1,000mu length in longer direction is used in order to produce such a sintered material. The powder is blended with an organic binder and the blend is molded to sheet to orient the powder and then the sheet is linearly rolled and sintered. The long and linear sintered material having radiately oriented C axis is readily obtained thereby.
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