Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of spherical aluminum nitride powder
The invention relates to the field of ceramic powder processing, and particularly discloses a preparation method of spherical aluminum nitride powder, which comprises the following steps: S1, placing a water-soluble organic carbon source in water, stirring and dissolving to obtain a mixed solution; the mass ratio of the water-soluble organic carbon source to the aluminum oxide is 1: (1-2), and a reaction precursor is prepared; s2, the reaction precursor is subjected to spray drying and dry pressing treatment, and a block is obtained; s3, the block is subjected to degreasing carbonization and nitridation reduction treatment, and a semi-finished product is obtained; s4, the semi-finished product is subjected to carbon removal treatment, cooling and smashing, and then finished product aluminum nitride powder is obtained; the method has the advantages of high sphericity, high purity and good thermal conductivity.
本申请涉及陶瓷粉体加工领域，具体公开了一种球形氮化铝粉体的制备方法，包括如下步骤：S1、将可水溶有机碳源置于水中搅拌溶解，得到混溶液；然后添加氧化铝，混合搅拌均匀，可水溶有机碳源与氧化铝的质量比为1:1‑2，制得反应前驱体；S2、反应前驱体经喷雾干燥、干压处理，得到块体；S3、块体经过脱脂碳化、氮化还原处理，得到半成品；S4、半成品经除碳处理、冷却、粉碎后，得到成品氮化铝粉体；具有球形度高、纯度高导热性好的优点。
Preparation method of spherical aluminum nitride powder
The invention relates to the field of ceramic powder processing, and particularly discloses a preparation method of spherical aluminum nitride powder, which comprises the following steps: S1, placing a water-soluble organic carbon source in water, stirring and dissolving to obtain a mixed solution; the mass ratio of the water-soluble organic carbon source to the aluminum oxide is 1: (1-2), and a reaction precursor is prepared; s2, the reaction precursor is subjected to spray drying and dry pressing treatment, and a block is obtained; s3, the block is subjected to degreasing carbonization and nitridation reduction treatment, and a semi-finished product is obtained; s4, the semi-finished product is subjected to carbon removal treatment, cooling and smashing, and then finished product aluminum nitride powder is obtained; the method has the advantages of high sphericity, high purity and good thermal conductivity.
本申请涉及陶瓷粉体加工领域，具体公开了一种球形氮化铝粉体的制备方法，包括如下步骤：S1、将可水溶有机碳源置于水中搅拌溶解，得到混溶液；然后添加氧化铝，混合搅拌均匀，可水溶有机碳源与氧化铝的质量比为1:1‑2，制得反应前驱体；S2、反应前驱体经喷雾干燥、干压处理，得到块体；S3、块体经过脱脂碳化、氮化还原处理，得到半成品；S4、半成品经除碳处理、冷却、粉碎后，得到成品氮化铝粉体；具有球形度高、纯度高导热性好的优点。
Preparation method of spherical aluminum nitride powder
一种球形氮化铝粉体的制备方法
LIN WEIYI (Autor:in) / LIU WEIPING (Autor:in) / CHEN ZHI (Autor:in) / ZHANG CAIGEN (Autor:in) / CHEN JINDUI (Autor:in)
16.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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