ALUMINIUM NITRIDE BASED PLATELETS, PROCESS FOR THEIR PREPARATION AND USE THEREOF

摘要

Macrocrystals containing aluminium nitride in the form of polycrystalline polygonal platelets. The invention also concerns a method of preparation of said macrocrystals involving carbonitriding of alumina alpha in the form of platelets in the presence of carbon and nitrogen. The aluminium nitride macrocrystals in platelet form can be used, in particular, for reinforcing metal, ceramic or polymer matrices.