Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of aluminum nitride powder
The invention relates to the field of aluminum nitride powder materials, and provides a preparation method of aluminum nitride powder, which solves the defects of high oxygen content and non-uniform powder purity caused by the defects of a preparation process of the aluminum nitride powder in the prior art, and comprises the following preparation steps: (1) selecting raw materials: taking gamma-AlOOH and Al (OH) 3 as aluminum sources, taking cane sugar and acetylene black as carbon sources, and adding CaF2 and AlN seed crystals; (2) mixing the raw materials in the step (1), sieving with a 200-mesh sieve, feeding into a ball mill, adding absolute ethyl alcohol, carrying out ball-milling dispersion treatment to obtain slurry, drying the slurry, sieving with the 200-mesh sieve, and uniformly dispersing; (3) microwave heating; (4) carbon thermal reduction reaction: carrying out carbon thermal reduction reaction for 3-4 hours in a nitrogen or ammonia atmosphere; and (5) carrying out decarburization treatment to obtain the aluminum nitride powder.
本发明涉及氮化铝粉体材料领域，提供一种氮化铝粉体的制备方法，解决现有技术的氮化铝粉体由于制备工艺的缺陷导致含氧量高、粉末纯度不均一的缺陷，包括以下制备步骤：(1)原材料的选择：以γ－AlOOH、Al(OH)3为铝源，蔗糖、乙炔黑为碳源，并添加CaF2和AlN晶种；(2)将步骤(1)的原材料进行混合，过200目筛网，送入球磨机中，添加无水乙醇，球磨分散处理，得到浆料，对浆料进行干燥处理，并过200目筛分散均匀；(3)微波加热；(4)炭热还原反应：在氮气或氨气气氛，进行碳热还原反应3－4h；(5)脱碳处理，获得氮化铝粉体。
Preparation method of aluminum nitride powder
The invention relates to the field of aluminum nitride powder materials, and provides a preparation method of aluminum nitride powder, which solves the defects of high oxygen content and non-uniform powder purity caused by the defects of a preparation process of the aluminum nitride powder in the prior art, and comprises the following preparation steps: (1) selecting raw materials: taking gamma-AlOOH and Al (OH) 3 as aluminum sources, taking cane sugar and acetylene black as carbon sources, and adding CaF2 and AlN seed crystals; (2) mixing the raw materials in the step (1), sieving with a 200-mesh sieve, feeding into a ball mill, adding absolute ethyl alcohol, carrying out ball-milling dispersion treatment to obtain slurry, drying the slurry, sieving with the 200-mesh sieve, and uniformly dispersing; (3) microwave heating; (4) carbon thermal reduction reaction: carrying out carbon thermal reduction reaction for 3-4 hours in a nitrogen or ammonia atmosphere; and (5) carrying out decarburization treatment to obtain the aluminum nitride powder.
本发明涉及氮化铝粉体材料领域，提供一种氮化铝粉体的制备方法，解决现有技术的氮化铝粉体由于制备工艺的缺陷导致含氧量高、粉末纯度不均一的缺陷，包括以下制备步骤：(1)原材料的选择：以γ－AlOOH、Al(OH)3为铝源，蔗糖、乙炔黑为碳源，并添加CaF2和AlN晶种；(2)将步骤(1)的原材料进行混合，过200目筛网，送入球磨机中，添加无水乙醇，球磨分散处理，得到浆料，对浆料进行干燥处理，并过200目筛分散均匀；(3)微波加热；(4)炭热还原反应：在氮气或氨气气氛，进行碳热还原反应3－4h；(5)脱碳处理，获得氮化铝粉体。
Preparation method of aluminum nitride powder
一种氮化铝粉体的制备方法
YANG DASHENG (Autor:in) / SHI CHUNXI (Autor:in) / FENG JIAWEI (Autor:in)
26.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Preparation method of aluminum nitride powder and aluminum nitride powder
| Europäisches Patentamt | 2024
Preparation method of aluminum nitride powder and aluminum nitride powder
| Europäisches Patentamt | 2024
Preparation method of modified aluminum nitride powder
| Europäisches Patentamt | 2024