利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

35 条记录 (耗时 0.019 秒)

    Method for producing powder of .alpha.-silicon nitride
    2.
    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。

    Method for production of sintered article of silicon nitride
    7.
    发明授权
    Method for production of sintered article of silicon nitride 失效
    氮化硅烧结体的制造方法

    公开(公告)号：US4693857A

    公开(公告)日：1987-09-15

    申请号：US716212

    申请日：1985-03-26

    申请人： Katsutoshi Komeya ,  Michiyasu Komatsu

    发明人： Katsutoshi Komeya ,  Michiyasu Komatsu

    IPC分类号： C04B35/58 ,  C04B35/584 ,  C04B35/597 ,  C04B33/32

    CPC分类号： C04B35/584 ,  C04B35/597

    摘要： As the aluminum nitride component of a sintering aid for powdered silicon nitride, either a spinel type compound having oxygen dissolved in aluminum nitride to form a solid solution or a poly-type aluminum nitride is used. Since the compound is highly stable in water, it can be effectively used in the form of an aqueous slurry mixture. As the sintering aid, this compound is used as effectively as aluminum nitride.

    摘要翻译： 作为用于粉末状氮化硅的烧结助剂的氮化铝组分，使用具有溶解在氮化铝中的氧以形成固溶体的尖晶石型化合物或多型氮化铝。 由于该化合物在水中高度稳定，因此可以以含水浆料混合物的形式有效地使用。 作为烧结助剂，该化合物与氮化铝一样有效地使用。

    Process for production of readily sinterable aluminum nitride powder
    8.
    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
    9.
    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
    10.
    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.