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Combustion synthesis of aluminum nitride powder using additives

Published online by Cambridge University Press:  31 January 2011

Chun-Nan Lin  and
Shyan-Lung Chung
Chun-Nan Lin
Affiliation:
Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan, 70101, Republic of China
Shyan-Lung Chung*
Affiliation:
Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan, 70101, Republic of China
*
a)Address all correspondence to this author.[email protected]
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Abstract

Aluminum nitride powder was synthesized by a combustion synthesis method using various additives. Each additive was mixed with Al powder, and the powder mixture was then pressed into a compact. The combustion reaction was ignited by heating the compact under N2 atmosphere of 0.4 MPa. Additives containing halogens were found to have a catalytic effect on the combustion reaction. High product yields were obtained when using additives of NH4X, CO(NH2)2, CH3(CH2)16COOH, and CO2H(CH2)2CO2H. In all these cases, eggshell-like skins were observed to form on the Al particles at the early stage of combustion. The catalytic effect, formation of the eggshell-like skins, and their effects on the combustion process were investigated and discussed.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 8 , August 2001 , pp. 2200 - 2208
Copyright
Copyright © Materials Research Society 2001

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References

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