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    Process for the manufacture of powders for superconductive ceramic materials
    2.
    发明公开
    Process for the manufacture of powders for superconductive ceramic materials 失效
    Verfahren zur Herstellung von Pulvernfürsupraleitende keramische Materialien。

    公开(公告)号：EP0524586A1

    公开(公告)日：1993-01-27

    申请号：EP92112393.1

    申请日：1992-07-20

    申请人： CENTRO SVILUPPO MATERIALI S.p.A.

    发明人： Fortunati, Stefano ,  Tului, Mario ,  Risso, Luca

    IPC分类号： C01G3/00 ,  C01B13/32 ,  C04B35/00 ,  C04B35/65

    CPC分类号： C01G3/006 ,  C01P2006/80 ,  C04B35/4508 ,  Y10S505/78

    摘要： A process for the pyrolysis of YBCO powders, characterized by the preparation of a clear aqueous solution containing the ions yttrium, barium and copper, in the final proportions desired for the powder, in the form of complex compounds, preferably citric complex compounds, and in the presence of a detonating system, like for instance a combination of ammonium ions and of nitrate ions.
    The clear solution is then made to concentrate by means of evaporation, until triggering a violent combustion which is carried out at a high temperature, higher than 250°C and preferably higher than 850°C.

    摘要翻译： YBCO粉末的热解方法，其特征在于以络合物，优选柠檬酸络合物的形式，以所需粉末的最终比例制备含有离子钇，钡和铜的透明水溶液，并且在 引爆系统的存在，例如铵离子和硝酸根离子的组合。 然后将透明溶液通过蒸发浓缩，直到引发在高于250℃，优选高于850℃的高温下进行的剧烈燃烧。