Preparation of Aluminum Nitride Whiskers

Abstract

Aluminum nitride whiskers have excellent characteristics, not only can be used in the high heat conductivity for the preparation of a new composite, but also can be used as a reinforcing agent for the preparation of a new composite toughened. Using wet, melamine, and aluminum nitrate as raw material, aluminum nitride whiskers precursor are prepared and pure aluminum nitride whiskers can be obtained by nitrogen and carbon removal processes. This kind of aluminum nitride whiskers possess smooth surface, uniform length, straight whisker, and a long cylindrical structure with a diameter of 4-6 μm and a length diameter ratio of 40-100.