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    Materials resistant to metal and salt melts, their production and their use
    2.
    发明授权
    Materials resistant to metal and salt melts, their production and their use 失效
    耐金属和盐熔体的材料，其生产和使用

    公开(公告)号：US4755220A

    公开(公告)日：1988-07-05

    申请号：US117329

    申请日：1987-11-06

    申请人： Peter Woditsch ,  Werner Kannchen ,  Horst Lange ,  Ingo Schwirtlich

    发明人： Peter Woditsch ,  Werner Kannchen ,  Horst Lange ,  Ingo Schwirtlich

    IPC分类号： C30B15/10 ,  B22C1/00 ,  C04B35/584 ,  C04B35/591 ,  C30B13/14 ,  C30B29/06 ,  C30B35/00 ,  C22C29/12

    CPC分类号： C30B35/002 ,  C04B35/591

    摘要： A material resistant to high temperature melts of metal and salt which comprises a composite material containing silicon nitride, silicon oxynitride, silicon dioxide and silicon prepared by(a) suspending silicon powder in SiO.sub.2 sol to form a pourable mass,(b) molding a workpiece from said mass,(c) hardening the molded workpiece, and(d) nitriding the hardened workpiece in a nitrogen atmosphere to form silicon nitride and silicon oxynitride to a degree that SiO.sub.2 and elemental silicon remain detectable in the nitrided workpiece,is useful as the material of construction for crucibles and tools for confining, handling and treating melts of metals or salts.

    摘要翻译： 耐高温熔融金属和盐的材料，其包含通过（a）将硅粉末悬浮在SiO 2溶胶中以形成可倾倒物质制备的包含氮化硅，氮氧化硅，二氧化硅和硅的复合材料，（b）模制工件 （c）硬化成型工件，（d）在氮气气氛中氮化氮化硅和氮氧化硅至达到在氮化工件中保持可检测的程度的氮化硅和氮氧化硅，可用作 用于坩埚的结构材料和用于限制，处理和处理金属或盐的熔融物的工具。