SYNTHESIS AND CHARACTERIZATION OF MIXED AL+ALN NANOPARTICLES

Mixed Al+AlN nanoparticles were synthesized by an active plasma-metal reaction method. Mean particle size of the mixed Al+AlN nanoparticles is about 30-50 nm. Defects were found in some AIN particles. Moreover, the AIN ratio and its particle size in mixed Al+AlN nanoparticles obt ained in different atmospheres (N-2+Ar) increase with increasing N-2 p article pressure, and the specific surface areas of the mixed Al+AlN n anoparticles increase with the AIN ratio. The surface degradation of t he Al+AlN exposed to air is estimated by the infrared absorption spect ra.