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http://dx.doi.org/10.4191/KCERS.2006.43.7.445

Preparation of AlN Powder by Combustion Reaction in the System of Al-AlN-NH4Cl  

Min, Hyun-Hong (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University)
Won, Chang-Whan (Engineering Research Center for Rapidly Solidified Materials, Chungnam National University)
Publication Information
Journal of the Korean Ceramic Society / v.43, no.7, 2006 , pp. 445-450 More about this Journal
Abstract
The preparation of AlN powder by SHS in the system of $Al-AlN-NH_4Cl$ was investigated in this study. In the preparation of AlN powder, the effect of gas pressure and the composition such as Al, AlF, and additive in mixture on the reactivity were investigated. At 60 atm of the initial inert gas pressure in reactor, the optimum composition for the preparation of pure AlN was 35 wt%Al+5 wt% $NH_4Cl+60wt%$AlN. The AlN powder synthesized in this condition was a single phase AlN with a whisker morphology.
Keywords
SHS; AlN; Composition; $NH_4Cl$; $NaN_3$;
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