한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제24권1호
  • /
  • Pages.23-32
  • /
  • 1987
  • /
  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

알콕사이드로부터 Si-Al-O-N계 분말합성 I. 알콕사이드로부터 Si3N4와 $\beta$-Sialon 초미분말 합성

Synthesis of Powder of the System Si-Al-O-N from Alkoxides I. Synthesis of Si3N4 and $\beta$-Sialon Ultrafine Powders from Alkoxides

  • 이홍림 (연세대학교 공과대학 요업공학과) ;
  • 유영창 (연세대학교 공과대학 요업공학과)
  • 발행 : 1987.01.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Synthesis of high purity ultrafine Si3N4 and ${\beta}$-Sialon powders was investigated via the simultaneous reduction and nitriding of amorphous SiO2, SiO2-Al2O3 system prepaerd by hydrolysis of alkoxides, using carbonablack as a reducing agent. In Si(OC2H5)4-C2H5 OH-H2 O-NH4OH system, hydrolysis rate increased with increasing reaction temperature and pH. Pure ${\alpha}$-Si3N4 was formed at 1350$^{\circ}C$ for 5 hrs in N2 atmosphere. In Si(OC2H5)4-Al(OC3H7)3-C6H6-H2 O-NH4OH system, weight loss increased as Si/Al ratio decreased. Single phase ${\beta}$-Sialon consisted of Si/Al=2 was formed at 1350$^{\circ}C$ in N2 and minor phases of ${\alpha}$-Si3N4, AIN, and X-phase were existed besides theSialon phase at other Si/Al ratios. The Si3N4 and Sialon powders synthesized from alkoxides consisted of uniform find particles of 0.05-0.2$\mu\textrm{m}$ in diameter, respectively.

키워드

참고문헌

  1. J. Am. Ceram. Soc. v.67 no.10 Preparation of Silicon Nitride from Silica S. Zhang;W. R. Cannon
  2. Special Ceramics v.7 The Preparation of Silicon Nitride from Silica by Sol-Gel Processing A. Szweda;A. Hendry;K. H. Jack;P. Popper(ed.)
  3. Am. Ceram. Soc. Bull. v.58 no.2 Preparation and Characterization of Ultrafine Powders of Refractory Nitrides: Ⅱ. Sialon M. Hoch;K. M. Nair
  4. Yogyo-Kyokai-Shi v.93 no.7 Preparation of Sialon Powder from Alkoxiders M. Mitomo;T. Shiogia;H. Yoshimatsu;Y. Kitami
  5. Yogyo-Kyokai-Shi v.93 no.10 Synthesis of β-Sialon from $Si_3N_4$ and Aluminum Iso Propoxide K. Kishi;S. Umebayashi;E. Tani;K. Kobayashi
  6. J. Non-Crystalline Solids v.48 no.11-16 History and Principles of the Sol-Gel Process, and Some New Multicomponent Oxide Coatings H. Dislich;P. Hinz
  7. Am. Ceram. Soc. Bull. v.56 no.9 Determination of Phase Content of $Si_3N_4$ by Diffraction Analysis C. P. Gazzara;D. R. Messier
  8. Materials Research Society Symposia Proceedings v.32 (Better Ceramics Through Chemistry)Effect of Water on Acid and Base Catalyzed Hydrolysis of Tetraethylorthosilicate(TEOS) L. C. Klein;G. J. Garvey;C. J. Brinker(ed.);D. E. Clark(ed.);D. R. Ulrich(ed.)
  9. J. Am. Ceram. Soc. v.72 no.5705 Hydrolysis of Ethyl Silicate R. Aelion;A. Loebel;F. Erich
  10. J. Am. Ceram. Soc. v.62 no.3-4 Foramation of Silicon-Aluminum Spinel A. K. Charkraborty
  11. J. Am. Ceram. Soc. v.60 no.9-10 Observation on the α→β-$Si_3N_4$ Transformation C. Greskovich;S. Prochazka
  12. Special Ceramics v.6 The Preparation of Silicon Nitride from Silica A. Hendry;K. H. Jack;P. Popper(ed.)
  13. J. Mat. Sci. v.14 no.4 The Effect of Hydrogen on the Nitridation of Silicon D. Campos-Loriz;F. L. Reley
  14. Am. Ceram. Soc. Bull. v.60 no.6 Effect of Rate - Controlled Nitriding and Nitriding Atmospheres on the Formation of Reaction-Bonded $Si_3N_4$ J. A. Mangels