窒化チタンスラリー特性が成形並びに焼結挙動に与える影響

概要

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Titanium nitride (TiN) slurry was prepared for slip casting with water, and the effects of slurry characters on forming and sintering behaviors were studied. 46.4 vol% TiN powder was dispersed in water with triethylamine (TEA) and polycalboxyl ammonium (PCA), and formed in a gypsum mold. Formed compacts were sintered at about 0.7 MPa N_2 pressure, at 1750℃ for 3 h. The slurries with TEA content above 0.02 mass% showed low viscosity and non-thixotropy. The slurries with PCA content in the range 0.06-0.08 mass% showed the minimum viscosity and minimum thixotropy. High-density specimens (density of 3.8-3.9×10^3 kg・m^<-3>) could be sintered from the low viscosity, slurry, prepared by the addition of TEA with pH higher than 10 and optimum addition of PCA.
社団法人日本セラミックス協会の論文
1999-10-01