Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-purity aluminum nitride powder and batch preparation method thereof
The invention discloses high-purity aluminum nitride powder and a batch preparation method thereof, and belongs to the technical field of ceramic powder preparation. According to the method disclosed by the invention, a method for industrially preparing the aluminum nitride powder is adopted, and a novel dispersing agent and a binding agent are preferably selected, so that the problems that carbon black in raw materials is difficult to disperse and easy to agglomerate in the pulping process are solved, the sufficient mixing of aluminum oxide and carbon black is realized, the consumption of carbon black is reduced, and the increase of oxygen content in aluminum nitride caused by too long decarburization time in the later period is avoided. According to the high-purity aluminum nitride powder prepared by the method, D50 is 0.6-1 [mu] m, the oxygen content is 0.5-0.75%, the carbon content is 220-320 ppm, the specific surface area is 2.6-3.4 m < 2 >/g, and the content of calcium silicon iron impurities is 10-20 ppm.
本发明公开了一种高纯氮化铝粉体及其批量化制备方法，属于陶瓷粉体制备技术领域。本发明公开的方法采用工业化制备氮化铝粉体的方法，优选新型分散剂和粘结剂，解决了原料中炭黑制浆过程中难分散、易团聚的问题，实现了氧化铝与炭黑的充分混合，减少了炭黑用量，避免后期脱碳时间过长导致的氮化铝中氧含量升高。采用该方法制备得到的高纯氮化铝粉体，D50为0.6‑1μm，氧含量为0.5‑0.75％，碳含量为220‑320ppm，比表面积为2.6‑3.4m2/g，钙硅铁杂质含量为10‑20ppm。
High-purity aluminum nitride powder and batch preparation method thereof
The invention discloses high-purity aluminum nitride powder and a batch preparation method thereof, and belongs to the technical field of ceramic powder preparation. According to the method disclosed by the invention, a method for industrially preparing the aluminum nitride powder is adopted, and a novel dispersing agent and a binding agent are preferably selected, so that the problems that carbon black in raw materials is difficult to disperse and easy to agglomerate in the pulping process are solved, the sufficient mixing of aluminum oxide and carbon black is realized, the consumption of carbon black is reduced, and the increase of oxygen content in aluminum nitride caused by too long decarburization time in the later period is avoided. According to the high-purity aluminum nitride powder prepared by the method, D50 is 0.6-1 [mu] m, the oxygen content is 0.5-0.75%, the carbon content is 220-320 ppm, the specific surface area is 2.6-3.4 m < 2 >/g, and the content of calcium silicon iron impurities is 10-20 ppm.
本发明公开了一种高纯氮化铝粉体及其批量化制备方法，属于陶瓷粉体制备技术领域。本发明公开的方法采用工业化制备氮化铝粉体的方法，优选新型分散剂和粘结剂，解决了原料中炭黑制浆过程中难分散、易团聚的问题，实现了氧化铝与炭黑的充分混合，减少了炭黑用量，避免后期脱碳时间过长导致的氮化铝中氧含量升高。采用该方法制备得到的高纯氮化铝粉体，D50为0.6‑1μm，氧含量为0.5‑0.75％，碳含量为220‑320ppm，比表面积为2.6‑3.4m2/g，钙硅铁杂质含量为10‑20ppm。
High-purity aluminum nitride powder and batch preparation method thereof
一种高纯氮化铝粉体及其批量化制备方法
LI KUANKUAN (Autor:in) / ZHAO YU (Autor:in) / LI YUNING (Autor:in) / WU MINGYUAN (Autor:in) / LI JUNFANG (Autor:in) / HUANG LINQUAN (Autor:in) / ZHU XIAONING (Autor:in)
02.04.2024
Patent
Elektronische Ressource
Chinesisch
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