| 摘要 |
PURPOSE:To obtain a sintered body with superior wear resistance by adding specified amounts of B, Be, Al or a compound thereof and Mg, Sr, Y, Ca, Ba, Zn, Cd, Hg, Sc, Ga, In, Ti or La to silicon carbide. CONSTITUTION:To SiC are added >=1 kind of component selected from B, Be, Al and compounds thereof as a sintering assistant by 0.1-2.0wt% as element basing on the amount of SiC and >=1 kind of component selected from Mg, Sr, Y, Ca, Ba, Zn, Cd, Hg, Sc, Ga, In, Ti, langhanoids and salts, chelate compounds and org. compounds thereof as a grain growth inhibotor by 0.1-5.0wt% as element basing on the amount of SiC. Thus, a sintered body superior to a sintered SiC body in wear resistance is obtd. When the amounts of the sintering assistant and the grain growth inhibitor are below the lower limits, the effect of the assistant is not produced sufficiently and the effect of the inhibitor is not produced. When the amounts exceed the upper limit, the wear resistance is deteriorated. |
