Oxidative stable ceramic composites
    1.
    发明授权
    Oxidative stable ceramic composites 失效
    氧化稳定陶瓷复合材料

    公开(公告)号:US5605868A

    公开(公告)日:1997-02-25

    申请号:US365811

    申请日:1994-12-29

    IPC分类号: C03C10/06 C03C14/00

    摘要: This invention is directed to the fabrication of SiC fiber reinforced, ceramic matrix composite articles exhibiting superior high temperature oxidative stability, those articles comprising:(a) a glass-ceramic matrix wherein alkali metal and/or alkaline earth metal aluminosilicate crystals constitute the predominant crystal phase;(b) a fiber reinforcing phase comprising SiC fibers coated with an alkali metal and/or alkaline earth metal sheet silicate entrained within said glass-ceramic matrix; and(c) a borosilicate glass phase dispersed as an intergranular glass within said glass-ceramic matrix, said borosilicate glass phase generally being present in an amount sufficient to provide an intergranular glass phase therein.

    摘要翻译: 本发明涉及制备表现出优异的高温氧化稳定性的SiC纤维增强陶瓷基复合材料制品,所述制品包括:(a)玻璃 - 陶瓷基体,其中碱金属和/或碱土金属硅铝酸盐晶体构成主要晶体 相; (b)纤维增强相,其包含被夹在所述玻璃 - 陶瓷基体内的碱金属和/或碱土金属片状硅酸盐涂覆的SiC纤维; 和(c)在所述玻璃 - 陶瓷基体内作为晶间玻璃分散的硼硅酸盐玻璃相,所述硼硅酸盐玻璃相通常以足以在其中提供晶间玻璃相的量存在。