Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지

Synthesis of $\beta$-Sialon from Wando Pyrophyllite

완도납석으로 부터 $\beta$-Sialon의 합성

  • 이홍림 (연세대학교 공과대학 요업공학과) ;
  • 신현곤 (연세대학교 공과대학 요업공학과)
  • Published : 1984.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

$eta$-Sialon synthesis was investigated via the simulataneous reduction and nitriding of Wando pyrophyllite. When Wando pyrophyllite-graphite-$Si_3N_4$ seed mixture was heated at 135$0^{\circ}C$ for as long as 10 hours in 80% $N_2$-20%$H_2$ atomsphere $eta$-$Si_3N_4$ solid solution was mainly formed together with a small amount of $\alpha$-$Si_3N_4$ The value z of the forming $Si_{6-x}Al_2O_2N{8-z}$ was decreased with heating time.

Keywords

References

  1. J. Mater. Sci. v.11 no.6 Sialons and Related Nitrogen Ceramics K. H. Jack
  2. Trans. J. Brit. Ceram. Soc. v.72 Nitrogen Ceramics K. H. Jack
  3. Trans. J. Brit. Ceram. Soc. v.81 The Development of Sialon ceramics and their Engineering Applications N. E. Cother and P. Hodgson
  4. J. Kor. Ceram. Soc. v.7 no.3 Studies on the Wando Pyrophyllite K. D. Oh;K. J. KIM
  5. 요업원료학 이희수;도기백
  6. J. Am. Ceram. Soc. v.58 no.7-8 Effect of H₂-N₂ Nitriding Atmospheres on the Properties of Reaction-Sintered Si₃N₄ J. A. Mangles
  7. British Ceramic Society v.22 Proceedings of the British Ceramic Society D. Godfrey
  8. Metallurgical Thermochemistry(5th Ed.) O. Kubaschewski;C. B. Alcock
  9. J. Am. Ceram. Soc. v.58 no.9-10 β-Si₃N₄ Solid Solution Prepared from Volcanic Ash and Al Powder in N₂ S. Umebayashi;K. Kobayashi
  10. J. Am. ceram. Soc. v.65 no.12 Synthesis of Silicon Nitride Power from Silica Reduction H. Inoue;K. Komeya;A. Tsuge
  11. Yogyo-Kyokai-Shi v.82 no.7 Solid Solution in the System Si₃N₄-AIN-AL₂O₃ Y. Oyama
  12. J. Am. Ceram. Soc. v.61 no.9-10 Insolubility of Mg in β-Si₃N₄ in the System Al-Mg-Si-O-N L. J. Gauckler