Adhesive Composition and Method to Join Non-Oxide Silicon Based Ceramic Parts
    2.
    发明申请
    Adhesive Composition and Method to Join Non-Oxide Silicon Based Ceramic Parts 审中-公开
    粘合剂组合物和加入非氧化物硅基陶瓷部件的方法

    公开(公告)号:US20150247077A1

    公开(公告)日:2015-09-03

    申请号:US14331121

    申请日:2014-07-14

    摘要: The present invention comprises an adhesive composition and a method of using the composition to join non-oxide, silicon-based ceramic parts. The composition is a non-aqueous paste comprising high levels of non-oxide powders, silicon carbide or silicon nitride powder blended with a mixture of polymeric precursors to silicon carbide and zirconium boride. The resulting blend of the present invention is capable of decomposing on heating (in an inert or reducing atmosphere) into Si-based ceramic phases. The powder is fully suspended and dispersed in the polymer such that pockets of dry powder are not present. Although the polymer penetrates between particles and wets the surfaces to be joined, it does not prevent some contact between particles and the surface. Because the paste contains only low levels of volatile solvents and it converts into Si-based ceramics upon pyrolysis, it provides strong chemical bonding to Si-based ceramics.

    摘要翻译: 本发明包括粘合剂组合物和使用该组合物连接非氧化物硅基陶瓷部件的方法。 该组合物是包含高水平的非氧化物粉末,碳化硅或氮化硅粉末的非水性浆料,其与碳化硅和硼化锆的聚合物前体的混合物共混。 所得到的本发明的共混物能够在加热(在惰性或还原性气氛中)分解成Si基陶瓷相。 粉末完全悬浮并分散在聚合物中,使得不存在干粉末袋。 虽然聚合物渗透在颗粒之间并润湿待接合的表面,但它不防止颗粒和表面之间的一些接触。 因为糊状物仅含有低水平的挥发性溶剂,并且在热分解时转化为Si基陶瓷,因此与Si基陶瓷提供强烈的化学键合。