Aluminum nitride boron nitride composite aggregate particle and its manufacturing method

摘要

Problem to be solved: to obtain an h-BN aggregate particle which gives a greater thermal conductivity to the composite composition than the conventional one.A method of manufacturing an aluminum nitride boron nitride composite aggregated particle comprising an aluminum nitride primary particle and a boron nitride primary particleThe method includes obtaining an aluminum oxide boron nitride composite granulated particle using a boron nitride powder having a total oxygen concentration of aluminum oxide powder and boron nitride powder having less than 3 mass% and 10% by mass;Aluminum nitride primary particles and particles μ More than five μ Boron nitride primary particles belowThe mass ratio of aluminum nitride and boron nitride in aluminum nitride boron nitride composite aggregates wasA method of manufacturing the boron nitride primary particles to form a curd structure.Diagram