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    Process for producing a boron-containing silicon carbide powder
    1.
    发明授权
    Process for producing a boron-containing silicon carbide powder 失效
    含硼碳化硅粉末的制造方法

    公开(公告)号：US4847060A

    公开(公告)日：1989-07-11

    申请号：US7271

    申请日：1987-01-27

    申请人： Goro Saiki ,  Jiro Kondo

    发明人： Goro Saiki ,  Jiro Kondo

    IPC分类号： C01B31/36 ,  C04B35/565 ,  C04B35/575

    CPC分类号： C04B35/565 ,  C01B31/36 ,  C04B35/575 ,  C01P2006/10 ,  C01P2006/80 ,  C01P2006/90

    摘要： Silicon carbide particles are produced by reacting a gaseous silicon compound or granular silicon with a carbon compound at a high temperature. In the reaction, the amount of free carbon content in the resultant silicon carbide particles can be controlled by monitoring the amount of unsaturated hydrocarbon such as acetylene, as a by-product. Moreover, silicon carbide particles can contain boron dispersed uniformly in the particles by a two step process comprising first reacting a silicon source and a boron source without a carbon source in a first reaction zone, to form boron-containing silicon particles, and second, reacting the resultant particles with a carbon source in a second reaction zone. Further, the above-mentioned monitoring of an unsaturated hydrocarbon by-product allows the obtaining of silicon carbide particles containing no free carbon, and the silicon carbide particles containing boron in the particles but no free carbon may be sintered without the addition of free carbon, to give a dense sinter.

    Processes for producing a high density silicon carbide sinter
    2.
    发明授权
    Processes for producing a high density silicon carbide sinter 失效
    生产高密度碳化硅烧结体的方法

    公开(公告)号：US4869886A

    公开(公告)日：1989-09-26

    申请号：US7267

    申请日：1986-01-27

    申请人： Goro Saiki ,  Jiro Kondo

    发明人： Goro Saiki ,  Jiro Kondo

    IPC分类号： C04B35/626 ,  C01B31/36 ,  C04B35/565 ,  C04B35/575

    CPC分类号： C01B31/36 ,  C04B35/565 ,  C04B35/575 ,  C01P2006/10 ,  C01P2006/80 ,  C01P2006/90

    摘要： Silicon carbide particles are produced by reacting a gaseous silicon compound or granular silicon with a carbon compound at a high temperature. In the reaction, the amount of free carbon content in the resultant silicon carbide particles can be controlled by monitoring the amount of unsaturated hydrocarbon such as acetylene, as a by-product. Moreover, silicon carbide particles can contain boron dispersed uniformly in the particles by a two step process comprising first reacting a silicon source and a boron source without a carbon source in a first reaction zone, to form boron-containing silicon particles, and second, reacting the resultant particles with a carbon source in a second reaction zone. Further, the above-mentioned monitoring of an unsaturated hydrocarbon by-product allows the obtaining of silicon carbide particles containing no free carbon, and the silicon carbide particles containing boron in the particles but no free carbon may be sintered without the addition of free carbon, to give a dense sinter.

    摘要翻译： 通过在高温下使气态硅化合物或颗粒状硅与碳化合物反应来制造碳化硅颗粒。 在反应中，所得碳化硅颗粒中的游离碳含量可以通过监测作为副产物的不饱和烃如乙炔的量来控制。 此外，碳化硅颗粒可以包含通过两步法在颗粒中均匀分散的硼，其包括在第一反应区中首先使硅源和不含碳源的硼源反应形成含硼硅颗粒，其次，使 在第二反应区中产生具有碳源的颗粒。 此外，上述不饱和烃副产物的监测允许获得不含游离碳的碳化硅颗粒，并且在颗粒中含有硼的碳化硅颗粒但不含游离碳可以在不加入游离碳的情况下进行烧结， 给出一个密集的烧结矿。

    Process for producing a silicon carbide powder
    3.
    发明授权
    Process for producing a silicon carbide powder 失效
    碳化硅粉末的制造方法

    公开(公告)号：US4832929A

    公开(公告)日：1989-05-23

    申请号：US6688

    申请日：1987-01-23

    申请人： Goro Saiki ,  Jiro Kondo

    发明人： Goro Saiki ,  Jiro Kondo

    IPC分类号： C01B31/36 ,  C04B35/565 ,  C04B35/575

    CPC分类号： C04B35/565 ,  C01B31/36 ,  C04B35/575 ,  C01P2006/10 ,  C01P2006/80 ,  C01P2006/90

    摘要： Silicon carbide particles are produced by reacting a gaseous silicon compound or granular silicon with a carbon compound at a high temperature. In the reaction, the amount of free carbon content in the resultant silicon carbide particles can be controlled by monitoring the amount of unsaturated hydrocarbon such as acetylene, as a by-product. Moreover, silicon carbide particles can contain boron dispersed uniformly in the particles by a two step process comprising first reacting a silicon source and a boron source without a carbon source in a first reaction zone, to form boron-containing silicon particles, and second, reacting the resultant particles with a carbon source in a second reaction zone. Further, the above-mentioned monitoring of an unsaturated hydrocarbon by-product allows the obtaining of silicon carbide particles containing no free carbon, and the silicon carbide particles containing boron in the particles but no free carbon may be sintered without the addition of free carbon, to give a dense sinter.

    摘要翻译： 通过在高温下使气态硅化合物或颗粒状硅与碳化合物反应来制造碳化硅颗粒。 在反应中，所得碳化硅颗粒中的游离碳含量可以通过监测作为副产物的不饱和烃如乙炔的量来控制。 此外，碳化硅颗粒可以包含通过两步法在颗粒中均匀分散的硼，其包括在第一反应区中首先使硅源和不含碳源的硼源反应形成含硼硅颗粒，其次，使 在第二反应区中产生具有碳源的颗粒。 此外，上述不饱和烃副产物的监测允许获得不含游离碳的碳化硅颗粒，并且在颗粒中含有硼的碳化硅颗粒但不含游离碳可以不加入游离碳而烧结， 给出一个密集的烧结矿。