竹生专利名称：PRODUCTION OF RAW POWDER FOR OXIDE SUPERCONDUCTOR
发明人：NAKAMURA NAOMICHI,FUKUDA
YASUTAKA,SHIMOTOMAI MICHIO,KOSEKI
YOSHIHIRO
申请号：JP14058088
申请日：19880609
下标
公开号：JPH01119513A
民族同化
血府逐瘀丸的成分公开日：
19890511
专利内容由知识产权出版社提供人为什么要努力>陪孩子终身成长>毁灭战士4
安全生产文章摘要：PURPOSE:To obtain the title raw powder capable of providing an oxide superconductor with improved critical temp. and critical current density in a short sintering time by calcining the raw material for the oxide superconductor contg. copper, crushing the calcined material, then pulverizing the material by an air-current pulverizer, and then classifying the pulverized material. CONSTITUTION:The raw material for the oxide superconductor contg. copper as the building element (e.g., Y2O3, BaCO3, CuO, etc.) is calcined, and then crushed to obtain the coar powder for an oxide superconductor having <=1mm particle size. The coar powder is charged in the gas inlet pipe of the air- current pulverizer, then injected into a crushing chamber by the supersonic gas (e.g., supersonic gaous oxygen) in the gas inlet pipe, and pulverized. The pulverized material is then classified, and the fine raw powder for an oxide superconductor having uniform particle size is obtained. The obtained powder is compacted, and then sintered to obtain an oxide superconductor having excellent superconductivity.
申请人：KAWASAKI STEEL CORP 更多信息请下载全文后查看
