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Ultrafine AIN and Al‐AlN powders: Preparation by DC Arc plasma and thermal treatment
Author(s) -
Li Hongdong,
Yang Haibin,
Zou Guangtian,
Yu San
Publication year - 1997
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19970090214
Subject(s) - materials science , nitride , homogeneity (statistics) , aluminium , wurtzite crystal structure , thermal conductivity , plasma , aluminium nitride , metallurgy , composite number , ceramic , chemical engineering , composite material , zinc , layer (electronics) , statistics , physics , mathematics , quantum mechanics , engineering
Pure, white, nanosized aluminum nitride powder in a wurtzite structure has been prepared using the DC are plasma method. Aluminum nitride is an important ccceramic material which exhibits high thermal conductivity, high hardness, good corrosion resistance, and low thermal expansivity. The most critical factors in the production of advanced ceramics are the purity and homogeneity of the starting powders. The new method allows the production of ultrafine, pure A1N and Al‐A1N composite materials.