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    Process for production of readily sinterable aluminum nitride powder
    1.
    发明授权
    Process for production of readily sinterable aluminum nitride powder 失效
    生产容易烧结的氮化铝粉末的方法

    公开(公告)号：US4615863A

    公开(公告)日：1986-10-07

    申请号：US768137

    申请日：1985-08-22

    申请人： Hiroshi Inoue ,  Akihiko Tsuge ,  Katsutoshi Komeya

    发明人： Hiroshi Inoue ,  Akihiko Tsuge ,  Katsutoshi Komeya

    IPC分类号： C01B21/072 ,  C04B35/581 ,  B22F1/00

    CPC分类号： C04B35/581 ,  C01B21/0726

    摘要： A process for producing readily sinterable aluminum nitride powder, which comprises mixing(i) alumina powder and/or powder of a compound capable of forming alumina by heat treatment,(ii) carbon powder and/or powder of a compound capable of forming carbon by heat treatment, and(iii) powder of at least one compound selected from the group consisting of alkaline earth metal oxides, compounds capable of forming said alkaline earth metal oxides by heat treatment, rare earth element oxides and compounds capable of forming said rare earth element oxides by heat treatment,and calcining the resulting mixture in a nitrogen-containing non-oxidative atmosphere, provides an aluminum nitride powder which is readily sinterable without further mixing with a sintering aid.

    摘要翻译： 一种制造容易烧结的氮化铝粉末的方法，其包括通过热处理将（i）能够形成氧化铝的化合物的氧化铝粉末和/或粉末混合（ii）通过以下方式混合（i）能够形成碳的化合物的碳粉末和/或粉末 热处理，和（iii）选自碱土金属氧化物，能够通过热处理形成所述碱土金属氧化物的化合物，稀土元素氧化物和能够形成所述稀土元素的化合物中的至少一种化合物的粉末 氧化物，并将所得混合物在含氮非氧化性气氛中煅烧，提供易于烧结的氮化铝粉末，而不用与烧结助剂进一步混合。

    Process for preparing silicon nitride powder
    2.
    发明授权
    Process for preparing silicon nitride powder 失效
    制备氮化硅粉末的方法

    公开(公告)号：US4514370A

    公开(公告)日：1985-04-30

    申请号：US618524

    申请日：1984-06-08

    申请人： Hiroshi Inoue ,  Katsutoshi Komeya ,  Akihiko Tsuge ,  Kazunari Koide ,  Masaaki Mori ,  Tetsuro Urakawa

    发明人： Hiroshi Inoue ,  Katsutoshi Komeya ,  Akihiko Tsuge ,  Kazunari Koide ,  Masaaki Mori ,  Tetsuro Urakawa

    IPC分类号： C01B21/068

    CPC分类号： C01B21/0685 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2004/62

    摘要： Disclosed is a process for preparing silicon nitride powder, which comprises baking a powdery mixture comprising (i) 1 part by weight of silica powder, or a silica-containing substance in terms of silica, (ii) 0.4 to 4 parts by weight of carbon powder, or a substance generating carbon by baking, in terms of carbon and (iii) 0.005 to 1 part by weight of silicon nitride powder synthesized by a silica reduction method, at a temperature of from 1350.degree. to 1550.degree. C. in a non-oxidative atmosphere containing nitrogen.

    摘要翻译： 公开了一种制备氮化硅粉末的方法，其包括将包含（i）1重量份二氧化硅粉末或含二氧化硅的二氧化硅物质的粉末混合物烘烤，（ii）0.4至4重量份的碳 粉末或通过焙烧产生碳的物质，以碳和（iii）0.005〜1重量份的通过二氧化硅还原法合成的氮化硅粉末，在1350〜1550℃的温度下， 含氮的氧化气氛。

    Method for producing powder of .alpha.-silicon nitride
    3.
    发明授权
    Method for producing powder of .alpha.-silicon nitride 失效
    生产α-氮化硅粉末的方法

    公开(公告)号：US4368180A

    公开(公告)日：1983-01-11

    申请号：US293305

    申请日：1981-08-17

    申请人： Hiroshi Inoue ,  Katsutoshi Komeya ,  Akihiko Tsuge

    发明人： Hiroshi Inoue ,  Katsutoshi Komeya ,  Akihiko Tsuge

    IPC分类号： C01B21/068 ,  C04B35/584

    CPC分类号： C04B35/584 ,  C01B21/0685 ,  C01P2004/61 ,  C01P2006/80

    摘要： A method for producing powder of a .alpha.-silicon nitride which comprises the steps of adding 0.1 to 2 parts by weight of carbon and 0.005 to 1 part by weight of at least one silicon compound selected from the group consisting of Si.sub.3 N.sub.4, SiC and Si.sub.2 ON.sub.2 to one part by weight, when converted to SiO.sub.2, of a liquid alkylchlorosilane that forms a precipitate and HCl by hydrolysis which precipitate is convertible to SiO.sub.2 at a baking temperature of 1300.degree. to 1550.degree. C., hydrolyzing the resultant mixture, washing the mixture to separate a solid component, and baking the solid component at a temperature of 1300.degree. to 1550.degree. C. in an atmosphere mainly consisting of a nitrogen gas or a gas of a nitrogen compound to effect formation of .alpha.-silicon nitride.

    Method for manufacturing heat-resistant reinforced composite materials
    4.
    发明授权
    Method for manufacturing heat-resistant reinforced composite materials 失效
    制造耐热增强复合材料的方法

    公开(公告)号：US4097293A

    公开(公告)日：1978-06-27

    申请号：US708354

    申请日：1976-07-26

    申请人： Katsutoshi Komeya ,  Hiroshi Inoue

    发明人： Katsutoshi Komeya ,  Hiroshi Inoue

    IPC分类号： C04B35/56 ,  C04B35/563 ,  C04B35/565 ,  C04B35/581 ,  C04B35/583 ,  C04B35/584 ,  C04B35/52 ,  C04B35/70

    CPC分类号： C04B35/583 ,  C04B35/56 ,  C04B35/563 ,  C04B35/565 ,  C04B35/581 ,  C04B35/584

    摘要： A method for manufacturing heat-resistant reinforced composite materials having a fibrous structure which comprises mixing 99.8 to 90 percent by weight of a first component selected from the group consisting of the nitrides or carbides of aluminum, silicon and boron and mixtures thereof and 0.2 to 10 percent by weight of a second component selected from the group consisting of the rare earth oxides and mixtures thereof, molding the mixture into a desired shape, and sintering the molded mass to create a fibrous structure therein, said first component being 0.2 to 3.0 microns in average particle size, and said second component being 0.1 to 2.0 microns in average particle size.

    摘要翻译： 一种制造具有纤维结构的耐热增强复合材料的方法，其包括将99.8-90％重量的选自由铝，硅和硼的氮化物或碳化物及其混合物组成的组中的第一组分和0.2至10 选自由稀土氧化物及其混合物组成的组的第二组分的重量百分比，将混合物成型为所需形状，并烧结成型物质以在其中形成纤维结构，所述第一组分为0.2-3.0微米 平均粒径，所述第二成分的平均粒径为0.1〜2.0微米。

    Method for producing powder of .alpha.-silicon nitride
    5.
    发明授权
    Method for producing powder of .alpha.-silicon nitride 失效
    生产α-氮化硅粉末的方法

    公开(公告)号：US4264565A

    公开(公告)日：1981-04-28

    申请号：US121095

    申请日：1980-02-13

    申请人： Hiroshi Inoue ,  Katsutoshi Komeya ,  Akihiko Tsuge

    发明人： Hiroshi Inoue ,  Katsutoshi Komeya ,  Akihiko Tsuge

    IPC分类号： C01B21/068 ,  C04B35/584 ,  C01B21/06

    CPC分类号： C04B35/584 ,  C01B21/0685 ,  C01P2004/61 ,  C01P2006/80

    摘要： A method for producing powder of .alpha.-silicon nitride which comprises the steps of:adding 0.3 to 2 parts by weight of powder of carbon and 0.005 to 1 paret by weight of at least one silicon compound selected from the group consisting of Si.sub.3 N.sub.4, SiC and silicon oxide nitride series compounds to one part by weight (as converted to SiO.sub.2) to a liquid silane derivative which produces a precipitate and HCl by hydrolysis and further causes SiO.sub.2 to be grown by the baking of said precipitate, or the precipitate produced by hydrolysis of the liquid silane derivatives;hydrolyzing the resultant mixture, if necessary;washing the mixture to separate a solid component, if necessary; andbaking the solid component for reduction and nitrogenization at a temperature of 1300.degree. to 1500.degree. C. in an atmosphere mainly consisting of a nitrogen gas or a gas of a nitrogen compound.

    摘要翻译： 一种生产α-氮化硅粉末的方法，包括以下步骤：将0.3至2重量份的碳粉和0.005至1重量份的至少一种选自Si 3 N 4，SiC的硅化合物和 氧化硅氮化物系列化合物与1重量份（转化为SiO 2）相对于通过水解产生沉淀物和HCl的液体硅烷衍生物，并且进一步通过焙烧所述沉淀生成SiO 2或通过水解生成的沉淀 液体硅烷衍生物; 如果需要，水解所得混合物; 如果需要，洗涤混合物以分离固体组分; 在1300〜1500℃的温度下，在氮气或氮化合物气体的气氛中焙烧固体成分。

    Process for preparing aluminum nitride powder
    6.
    发明授权
    Process for preparing aluminum nitride powder 失效
    氮化铝粉末制备方法

    公开(公告)号：US4680278A

    公开(公告)日：1987-07-14

    申请号：US812012

    申请日：1985-12-23

    申请人： Hiroshi Inoue ,  Akihiko Tsuge ,  Katsutoshi Komeya

    发明人： Hiroshi Inoue ,  Akihiko Tsuge ,  Katsutoshi Komeya

    IPC分类号： C01B21/072 ,  C01B21/082 ,  C04B35/58

    CPC分类号： C01B21/0726 ,  C01B21/0826 ,  C01P2004/61

    摘要： A process for preparing aluminum nitride powder, which comprises mixing (i) aluminum hydroxide powder, (ii) carbon powder or a substance capable of forming carbon powder by heating and (iii) at least one of additives selected from the group consisting of aluminum nitride powder, silicon nitride powder, silicon carbide powder and powder of substances capable of forming the powder corresponding to these powders, and baking the mixture thus obtained in a non-oxidative atmosphere containing nitrogen. The process is useful for preparing aluminum nitride powder having small particle size and small particle size distribution and also having a uniform shape of particles, at a lower temperature and in a shorter period of time.

    摘要翻译： 一种制备氮化铝粉末的方法，其包括将（i）氢氧化铝粉末，（ii）碳粉末或能够通过加热形成碳粉末的物质和（iii）至少一种选自氮化铝 粉末，氮化硅粉末，碳化硅粉末和能够形成与这些粉末相应的粉末的物质的粉末，并在由氮气的非氧化性气氛中焙烧得到的混合物。 该方法在较低的温度和更短的时间内可用于制备具有小粒度和小粒度分布的氮化铝粉末，并且还具有均匀的颗粒形状。

    Method of making .alpha.-silicon nitride powder
    7.
    发明授权
    Method of making .alpha.-silicon nitride powder 失效
    制造α-氮化硅粉末的方法

    公开(公告)号：US4428916A

    公开(公告)日：1984-01-31

    申请号：US79231

    申请日：1979-09-26

    申请人： Katsutoshi Komeya ,  Hiroshi Inoue ,  Shigeru Matake ,  Hiroshi Endo

    发明人： Katsutoshi Komeya ,  Hiroshi Inoue ,  Shigeru Matake ,  Hiroshi Endo

    IPC分类号： C04B35/626 ,  C01B21/068

    CPC分类号： C01B21/0685 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/80

    摘要： .alpha.-Silicon nitride powder which is used as a raw material for the preparation of high strength silicon nitride with additives such as magnesia and yttrium oxide, and other sintered materials suitable for high temperatures gas turbine engine components and the like, is prepared by heating a powdered mixture of silica, carbon and at least one component selected from the group consisting of silicon nitride, silicon carbide and silicon oxynitride in a nitrogen containing atmosphere and then optionally subjecting the material to a heat treatment in an oxidizing atmosphere for decarbonization of said material as required.

    摘要翻译： 用作制备高强度氮化硅的原料的α-氮化硅粉末，其中添加剂如氧化镁和氧化钇以及其它适用于高温燃气轮机发动机部件的烧结材料等通过加热 二氧化硅，碳和至少一种选自氮化硅，碳化硅和氮氧化硅的组分的粉末混合物在含氮气氛中，然后任选地在氧化气氛中对所述材料进行热处理以使所述材料脱碳作为 需要。