MULTICATION DOPED ALPHA-BETA SIALON CERAMICS
    27.
    发明申请
    MULTICATION DOPED ALPHA-BETA SIALON CERAMICS 审中-公开
    多晶硅铝硅酸盐陶瓷

    公开(公告)号:WO2002070419A2

    公开(公告)日:2002-09-12

    申请号:PCT/TR2002/000006

    申请日:2002-02-28

    IPC: C04B

    Abstract: This invention is about SiALON ceramics comprising an alpha SiA1ON, a beta SiA1ON and an intergranular amorphous and/or crystalline phase. Said alpha SiALON phase was prepared from a multi-cationic mixture including the element of calcium, at least one of yttrium and/or a rare earth element with atomic number greater than 62 and at least one of a rare earth element with atomic number equal or smaller than 62. The second phase, beta SiALON contains elements of Si, AL, O, N. The third phase, amorphous and/or crystalline intergranular phase contains in addition to elements of Si, AL, O, N, element of calcium, at least one of yttrium and/or a rare earth element with atomic number greater than 62 and at least one of a rare earth element with atomic number equal or smaller than 62. This material with its toughness, high fracture resistance and high temperature resistance is useful for cutting tool applications and components in machinery and engines.

    Abstract translation: 本发明涉及包含αSiAlON,βSiAlON和晶间无定形和/或结晶相的SiALON陶瓷。 所述αSiONON相由多元阳离子混合物制备,所述多阳离子混合物包括钙元素,原子数大于62的钇和/或稀土元素中的至少一种,以及至少一种原子数相等的稀土元素, 小于62.第二相βSiONON含有Si,AL,O,N的元素。第三相,非晶和/或晶体晶间相除了Si,AL,O,N,元素钙, 原子序数大于62的钇和/或稀土元素中的至少一种以及原子序数等于或小于62的稀土元素中的至少一种。具有韧性,耐断裂性和耐高温性的材料是 可用于机械和发动机中的刀具应用和组件。

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