Article ID Journal Published Year Pages File Type
1464701 Ceramics International 2009 7 Pages PDF
Abstract

Uniform quasi-aligned AlN nanowhiskers grown in the reacting Al particles have been successfully prepared in high content by combustion synthesis using NH4Cl as a morphology-controlled promoting additive. FE-SEM and TEM images show that the nanowhiskers, which are single-crystalline hexagonal wurtzite AlN growing along [0 0 1] direction, have diameters in the range of 80–170 nm and a length of several to several tens of micrometers. The effect of NH4Cl on the growth of nanowhiskers was discussed. It was found that NH4Cl not only controlled the products’ morphology, but also changed the combustion behavior and nitridation mechanism in the combustion synthesis process.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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