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Microstructure and thermokinetics analysis of combustion synthesized AlN

Published online by Cambridge University Press:  31 January 2011

Kexin Chen*
Affiliation:
State Key Laboratory of New Ceramics & Fine Processing, Department of Materials Science & Engineering, Tsinghua University, Beijing 100084, People 's Republic of China
Changchun Ge
Affiliation:
Laboratory of Special Ceramic P/M, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
Jiangtao Li
Affiliation:
Laboratory of Special Ceramic P/M, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
Wenbin Cao
Affiliation:
Laboratory of Special Ceramic P/M, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
*
a)Address all correspondence to this author. e-mail: thckx@public.east.cr.net
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Abstract

The mechanism for combustion synthesis (CS) of AlN was investigated in the present paper. A novel quenching technique was developed to retain the high-temperature structure formed in the sample during the combustion process. Based on the microstructural observation of the quenched specimen and thermodynamic analysis, a two-step reaction mechanism for CS AlN, i.e., vaporization of Al and subsequent reaction with N2, is proposed.

Type
Articles
Copyright
Copyright © Materials Research Society 1999

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References

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