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METHOD FOR MANUFACTURING SILICON NITRIDE POWDER
This silicon nitride powder manufacturing method is characterized by comprising: a step for preparing raw material powder containing at least 90 mass% of a silicon powder; a step for loading a heat-resistant reaction vessel with the raw material powder; a step for obtaining a lumpy product through a combustion synthesis reaction by igniting the raw material powder loaded in the reaction vessel ina nitrogen atmosphere and then causing heat generated through combustion nitridation of silicon to propagate throughout the raw material powder; and a step for mechanically pulverizing the lumpy product under dry conditions.
一种氮化硅粉末的制造方法，其特征在于，包括如下工序：准备包含90质量％以上的硅粉末的原料粉末的工序；将前述原料粉末填充至耐热性反应容器的工序；在氮气气氛下，对填充至前述反应容器的原料粉末点火，通过使硅的氮化燃烧热传播至该原料粉末整体的燃烧合成反应而得到块状产物的工序；对前述块状产物在干式下进行机械粉碎的工序。
METHOD FOR MANUFACTURING SILICON NITRIDE POWDER
This silicon nitride powder manufacturing method is characterized by comprising: a step for preparing raw material powder containing at least 90 mass% of a silicon powder; a step for loading a heat-resistant reaction vessel with the raw material powder; a step for obtaining a lumpy product through a combustion synthesis reaction by igniting the raw material powder loaded in the reaction vessel ina nitrogen atmosphere and then causing heat generated through combustion nitridation of silicon to propagate throughout the raw material powder; and a step for mechanically pulverizing the lumpy product under dry conditions.
一种氮化硅粉末的制造方法，其特征在于，包括如下工序：准备包含90质量％以上的硅粉末的原料粉末的工序；将前述原料粉末填充至耐热性反应容器的工序；在氮气气氛下，对填充至前述反应容器的原料粉末点火，通过使硅的氮化燃烧热传播至该原料粉末整体的燃烧合成反应而得到块状产物的工序；对前述块状产物在干式下进行机械粉碎的工序。
METHOD FOR MANUFACTURING SILICON NITRIDE POWDER
氮化硅粉末的制造方法
WAKAMATSU SATORU (author)
2020-09-29
Patent
Electronic Resource
Chinese
European Patent Office | 2024
| European Patent Office | 2022
| European Patent Office | 2024