会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Method for preparing bismuth-based high temperature superconductors
    • 制备铋基高温超导体的方法
    • US06599862B2
    • 2003-07-29
    • US09916175
    • 2001-07-26
    • Sergey LeeSetsuko Tajima
    • Sergey LeeSetsuko Tajima
    • C04B10100
    • C04B35/4525C04B35/4521H01L39/2477Y10S505/737Y10S505/742
    • The invention provides a method for stably preparing a bismuth-based high temperature superconductor of a Bi-2223 single-phase or a Bi/Pb-2223 single phase, wherein a second phase is not allowed to reside, at a low cost and efficiently. With the method described above, mixed powders of raw materials (mixed powders of oxides and carbonates), obtained by mixing the raw materials such that a mixing ratio of constituents, Bi:Sr:Ca:Cu or (Bi, Pb):Sr:Ca:Cu, becomes identical to the stoichiometric ratio of a crystal of the superconductor Bi2Sr2Ca2Cu3Oz, or (Bi, Pb) 2Sr2Ca2Cu3Oz, respectively, are used as raw material for sintering, and the sintering is applied thereto, using KCl as a flux. In this case, the raw material for the sintering as calcinated is preferably used, and the sintering is preferably applied at a sintering temperature kept at a constant level.
    • 本发明提供了一种低成本且高效率地稳定地制备Bi-2223单相或Bi / Pb-2223单相的铋基高温超导体的方法,其中不允许第二相存在。 使用上述方法,通过将原料混合使得成分Bi:Sr:Ca:Cu或(Bi,Pb):Sr:Cb的混合比例得到的原料混合粉末(氧化物和碳酸盐的混合粉末) Ca:Cu分别与超导体Bi2Sr2Ca2Cu3Oz的晶体化学计量比相同,或(Bi,Pb)2Sr2Ca2Cu3Oz分别作为烧结原料,使用KCl作为助熔剂进行烧结。 在这种情况下,优选使用煅烧的烧结原料,烧结温度优选在保持恒定水平的烧结温度下进行。