Method for production of sintered ceramic article containing titanium diboride and silicon carbide
AssigneesAgency of Industrial Science and Technology, Ministry of International Trade & Industry
InventorsAkira Kamiya, Kikuo Nakano
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Abstract
A sintered article having a matrix of titanium diboride and a dispersed reinforcing phase of silicon carbide is produced by mixing titanium diboride powder and silicon carbide powder or whiskers, combining the resultant mixture with silicon boride, and sintering the produced mixture in a non-oxidative atmosphere under a pressure of at least 300 kg/cm.sub.2 at a temperature of at least 1,300.degree.C.
Claims10
A method for the production of a high-strength sintered ceramic article having a matrix of titanium diboride and a dispersed reinforcing phase of silicon carbide and containing boron carbide and silicon, by heating and pressing, which method consists essentially of mixing titanium diboride powder and at least one silicon carbide selected from the group consisting of silicon carbide whiskers and silicon carbide powder in an amount in the range of from 5 to 30% by volume, based on the total amount of titanium diboride and silicon carbide, combining the resultant mixture with 1 to 10% by weight, based on the amount of said resultant mixture, of silicon boride and sintering the resultant combination in a non-oxidative atmosphere under a pressure of at least 300 kg/cm.sup.2 at a temperature of at least 1,300.degree. C.
Dependencies are inferred from the claim text.