Silicon nitride-titanium nitride based ceramic composites and methods of
preparing the same
    1.
    发明授权
    Silicon nitride-titanium nitride based ceramic composites and methods of preparing the same 失效
    氮化硅 - 氮化钛基陶瓷复合材料及其制备方法

    公开(公告)号:US4900700A

    公开(公告)日:1990-02-13

    申请号:US200659

    申请日:1988-05-31

    IPC分类号: C04B35/597

    CPC分类号: C04B35/597

    摘要: A ceramic composite containing less than 90% of a single phase silicon aluminum oxynitride and titanium nitride in an amount of up to about 10% by weight. Also disclosed are silicon nitride containing compositions for forming the composite and methods of producing the composite from the composition.

    摘要翻译: 含有至多约10重量%的少于90%的单相硅铝氧氮化物和氮化钛的陶瓷复合材料。 还公开了用于形成复合材料的含氮化硅的组合物和从组合物制备复合材料的方法。

    Boron nitride-boron nitride composites
    2.
    发明授权
    Boron nitride-boron nitride composites 失效
    氮化硼 - 氮化硼复合材料

    公开(公告)号:US4075276A

    公开(公告)日:1978-02-21

    申请号:US446452

    申请日:1974-02-27

    摘要: Boron nitride-boron nitride composite bodies may be produced by combining pure boron nitride fibers with partially nitrided fibers consisting essentially of B, N, O, and H, and hot pressing the composite at elevated temperatures and pressure. The partially nitrided material serves as a source of matrix material for the boron nitride fibers, and when fiber orientation is properly controlled, bodies of extremely high strength may be obtained. Densities in excess of 1.5 g./cc. may be obtained, in a one-step process which overcomes difficulties inherent in multiple-step nitriding and re-nitriding processes.

    摘要翻译: 可以通过将纯氮化硼纤维与基本上由B,N,O和H组成的部分氮化纤维组合,并在高温和高压下热压复合材料来制备氮化硼 - 氮化硼复合体。 部分氮化的材料用作氮化硼纤维的基质材料源,并且当纤维取向被适当地控制时,可以获得极高强度的物体。 密度超过1.5 g./cc。 可以克服多步氮化和再氮化过程中固有的困难的一步法。