MIXTURE FOR ARTICLES OF ALUMINIUM NITRIDE HAVING HIGH HEAT CONDUCTIVITY AND METHOD FOR THEIR PRODUCTION Russian patent published in 1995 - IPC

FIELD: production of ceramic articles. SUBSTANCE: proposed mixture contains powder of aluminium nitride, yttrium oxide, boron oxide and carbon. Heat conductivity of articles being manufactured of said mixture is 150-200 Wt/m K. Proposed method for desired article production involves mixing components, their dry grinding, formation of half-finished article followed by their calcination. The latter process is carried out at atmospheric pressure at 1750-1840 C. EFFECT: improves quality of desired articles, improves efficiency of the method. 5 cl, 4 tbl