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Combustion synthesis method for synthesis of aluminum nitride powder using aluminum containers (II)

Published online by Cambridge University Press:  01 October 2004

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. e-mail: slchung@mail.ncku.edu.tw
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Abstract

A combustion synthesis method was developed for synthesis of AlN powder. Al powder and small amounts of urea were thoroughly mixed and placed in aluminum containers. A layer of AlN powder was placed on the top of the reactant powdersand in between the reactant powders and the container walls. The combustion reaction was ignited by heating the top surface of the powder stack and the aluminum container was converted completely to AlN during combustion reaction. High product yields (∼99.5%) were obtained under N2 pressures of 0.3–0.5 MPa. The product as synthesized is porous and loose and can be easily ground. A quenching technique was developed and formation of the various types of product morphology was investigated. Effects of several process parameters on the product yield were also studied. These results were reported and discussed.

Keywords

PowderThermal conductivityCombustion synthesis
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 10 , October 2004 , pp. 3037 - 3045
Copyright
Copyright © Materials Research Society 2004

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References

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