1. C. H. MCMURTRY, W. G. D. BOECKER, S. G. SESHARDRI, J. S. ZANGHI and J. E. GARNIER,Amer. Ceram. Soc. Bull. 66 (1987) 325.
2. T. TANI and S. WADA,Ceram. Eng. Sci. Proc. 10 (1989) 1132.
3. J. J. KIM and C. H. MCMURTRY,Ceram. Eng. Sci. Proc. 6 (1985) 1313.
4. S. PROCHAZKA,Spec. Ceram. 6 (1975) 171.
5. S. PROCHAZKA, C. A. JOHNSON and R. A. GIDDINGS, in Proceedings of International Symposium of Factors in Densification and Sintering of Oxide and Non-oxide Ceramics (Gakujutu Bunken Fukyu-Kai, Tokyo, Japan, 1979) p. 366.