| 摘要 |
PROBLEM TO BE SOLVED: To obtain a siliceous carbide powder slurry for slip casting, capable of producing a silicon carbide sintered compact having high density and high strength and to provide a method for preparing the slurry. SOLUTION: This siliceous carbide powder slurry for slip casting comprises silicon carbide powder, a sintering auxiliary and modified carbon black subjected to oxidation treatment together with a dispersant dispersed into water and has pH 7-11 of the dispersion. The modified carbon black is modified so as to have the total of a hydroxyl group and a carboxyl group among surface functional groups of >=3 μ eq/m<2> . The slurry is obtained by dispersing the silicon carbide powder, the sintering auxiliary and the modified carbon black subjected to oxidation treatment together with the dispersant into water and adjusting the dispersion to pH 7-11. |
