Review on Preparation of Spherical Alumina Powder

Abstract

Abstract: Spherical alumina powder is an indispensable part of alumina products and has attracted much attention due to its special physical and chemical properties. Compared with irregular alumina powder, the performance of products made of spherical alumina powder is greatly improved due to its morphology and size. At present, there is a large amount of literature discussing the method of preparing spherical alumina powder, but there is a lack of literature to systematically compare the suitable preparation methods and advantages and disadvantages of different raw materials. This paper summarizes and analyzes the existing literature from different alumina materials, and finds that different alumina materials determine different preparation methods and thereby determining the difficulty of industrialization. Among them, irregular alumina is the best raw material for industrial mass production of spherical alumina powder.

Key words: spherical alumina, metallic aluminum, aluminum salt, alcoholic aluminum, irregular alumina, preparative technique, morphology control

CLC Number:

TQ133.1

JIA Rui, LIU Hongyu, SUN Xuemiao, JIANG Su, SHEN Huiling, XIE Kaixin. Review on Preparation of Spherical Alumina Powder[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(5): 1657-1665.

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