Materials Science Forum, Vol.449-4, 213-216, 2004
Self-propagating high-temperature synthesis of aluminum nitride and its characterization
Aluminum nitride was synthesized by self-propagating high-temperature synthesis (SHS) with flaky aluminum powder in various conditions such as particle size, nitrogen pressure (P-N2) dilution factor (f(Dil)), packing density, and bulk sample size. AIN content in the SHS product increases with an increase of f(Dil), and. it eventually reaches about 95 % at f(Dil)=0.6. Generally, reaction front velocity is significantly affected by PN2 and packing density, but not by f(Dil). The degree of AIN conversion reduces more or less with an increase of bulk sample size, but that could be improved by using the SHS pre-prepared product as a diluent.