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1.发明授权Method for producing ceramic superconducting material using intermediate products 失效使用中间产品生产陶瓷超导材料的方法
公开(公告)号：US5032570A
公开(公告)日：1991-07-16
申请号：US220708
申请日：1988-07-18
CPC分类号： C04B35/4521 , C04B35/4504 , C04B35/4512 , H01L39/2419 , Y10S505/725 , Y10S505/776 , Y10S505/778 , Y10S505/779 , Y10S505/78 , Y10S505/781
摘要： This invention provides a method for producing an oxide superconductor which has a uniform texture and is markedly high in sintered density and current density.The method involves the formation of intermediate products from the starting materials. The intermediate products are then used to form the final product. Specifically, to form an oxide superconducting material having a compositional formulaYBa.sub.2 CU.sub.3 O.sub.7-8,where 8 is more than zero but less than 0.5, the method of the invention includes forming a first intermediate product of Y.sub.2 CU.sub.2 O.sub.5, forming a second intermediate product of BaCuO.sub.2, mixing the first and second intermediate products, and sintering the intermediate product mixture to form the oxide superconducting material.
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公开(公告)号：US4874927A
公开(公告)日：1989-10-17
申请号：US203121
申请日：1988-06-07
CPC分类号： G03G15/2057 , H05B3/0095
摘要： The resistive layer of an electrically heated toner fixing roll includes a Fe-Cr-Al metal alloy phase and a ceramic substrate phase thermally sprayed onto the surface of a thermally and electrically insulated metal roll. The ceramic substrate can be Al.sub.2 O.sub.3 and the alloy can be 64-89 wt % Fe; 10-30 wt % Cr; and 2-10 wt % Al. Al.sub.2 O.sub.3 can be the insulating layer, and the metal roll can be iron, or an iron-based alloy.
摘要翻译： 电加热调色剂定影辊的电阻层包括Fe-Cr-Al金属合金相和陶瓷基体相，其被热喷涂到热和电绝缘金属辊的表面上。 陶瓷基体可以是Al 2 O 3，合金可以是64-89wt％的Fe; 10-30重量％Cr; 和2-10重量％的Al。 Al2O3可以是绝缘层，金属辊可以是铁或铁基合金。
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