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Aluminum nitride powder as well as preparation method and application thereof
The invention discloses aluminum nitride powder as well as a preparation method and application thereof, and the preparation method comprises the following steps: performing surface activation on aluminum oxide particles to obtain activated aluminum oxide particles; carrying out molecular layer deposition treatment on the activated aluminum oxide particles, and carrying out surface deposition to form an aluminoxane film, so as to obtain coated aluminum oxide particles; sintering the coated aluminum oxide particles at 600-800 DEG C in an oxidizing atmosphere to obtain porous aluminum oxide layer coated aluminum oxide particles; uniformly mixing the aluminum oxide particles coated with the porous aluminum oxide layer with carbon black, and introducing nitrogen to carry out carbon thermal reduction reaction, so as to obtain the aluminum nitride powder. According to the method, the spherical aluminum nitride powder with high purity and low oxygen content can be synthesized at lower reaction temperature and shorter heat preservation time.
本发明公开了一种氮化铝粉体及其制备方法和应用，制备方法的步骤包括：取氧化铝颗粒进行表面活化，得到活化氧化铝颗粒；将所述活化氧化铝颗粒进行分子层沉积处理，表面沉积形成铝氧烷薄膜，得到包膜氧化铝颗粒；将所述包膜氧化铝颗粒在600‑800℃和氧化气氛下烧结，得到多孔氧化铝层包覆的氧化铝颗粒；将所述多孔氧化铝层包覆的氧化铝颗粒与炭黑混合均匀后，通入氮气进行碳热还原反应，即得所述氮化铝粉体。本发明能够在较低的反应温度和较短的保温时间下即可合成高纯度、低氧含量的球形氮化铝粉体。
Aluminum nitride powder as well as preparation method and application thereof
The invention discloses aluminum nitride powder as well as a preparation method and application thereof, and the preparation method comprises the following steps: performing surface activation on aluminum oxide particles to obtain activated aluminum oxide particles; carrying out molecular layer deposition treatment on the activated aluminum oxide particles, and carrying out surface deposition to form an aluminoxane film, so as to obtain coated aluminum oxide particles; sintering the coated aluminum oxide particles at 600-800 DEG C in an oxidizing atmosphere to obtain porous aluminum oxide layer coated aluminum oxide particles; uniformly mixing the aluminum oxide particles coated with the porous aluminum oxide layer with carbon black, and introducing nitrogen to carry out carbon thermal reduction reaction, so as to obtain the aluminum nitride powder. According to the method, the spherical aluminum nitride powder with high purity and low oxygen content can be synthesized at lower reaction temperature and shorter heat preservation time.
本发明公开了一种氮化铝粉体及其制备方法和应用，制备方法的步骤包括：取氧化铝颗粒进行表面活化，得到活化氧化铝颗粒；将所述活化氧化铝颗粒进行分子层沉积处理，表面沉积形成铝氧烷薄膜，得到包膜氧化铝颗粒；将所述包膜氧化铝颗粒在600‑800℃和氧化气氛下烧结，得到多孔氧化铝层包覆的氧化铝颗粒；将所述多孔氧化铝层包覆的氧化铝颗粒与炭黑混合均匀后，通入氮气进行碳热还原反应，即得所述氮化铝粉体。本发明能够在较低的反应温度和较短的保温时间下即可合成高纯度、低氧含量的球形氮化铝粉体。
Aluminum nitride powder as well as preparation method and application thereof
一种氮化铝粉体及其制备方法和应用
YU MINGXIAN (author) / WENG MINGJIN (author) / YAO ZEMING (author) / DAI GAOHUAN (author) / LI YI (author)
2024-09-06
Patent
Electronic Resource
Chinese
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