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    • 1. 发明授权
    • Method for producing powder of .alpha.-silicon nitride
    • 生产α-氮化硅粉末的方法
    • US4264565A
    • 1981-04-28
    • US121095
    • 1980-02-13
    • Hiroshi InoueKatsutoshi KomeyaAkihiko Tsuge
    • Hiroshi InoueKatsutoshi KomeyaAkihiko Tsuge
    • C01B21/068C04B35/584C01B21/06
    • C04B35/584C01B21/0685C01P2004/61C01P2006/80
    • 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.
    • 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。
    • 2. 发明授权
    • Process for production of readily sinterable aluminum nitride powder
    • 生产容易烧结的氮化铝粉末的方法
    • US4615863A
    • 1986-10-07
    • US768137
    • 1985-08-22
    • Hiroshi InoueAkihiko TsugeKatsutoshi Komeya
    • Hiroshi InoueAkihiko TsugeKatsutoshi Komeya
    • C01B21/072C04B35/581B22F1/00
    • C04B35/581C01B21/0726
    • 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.
    • 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。