ALUMINUM NITRIDE POWDER HAVING A REDUCED AMMONIA ODOR AND A METHOD FOR PREPARING THE SAME

摘要

An aluminum nitride powder that has substantially no ammonia odor after exposure to atmospheric moisture is obtained placing the powder in operative contact, such as by admixing, with a gettering compound that sublimes or decomposes at a temperature below 500 DEG C. Admixing is one method of obtaining operative contact. The gettering compound is a C1-C11 aliphatic carboxylic mono- or polyfunctional acid, an anhydride or an ester of such an acid or an anhydride of an aromatic carboxylic acid.