Preparation of the LAS Ceramics for Heat Resistance using Metal Alkoxide (I)

금속 Alkoxide를 이용한 LAS계 내열세라믹스의 제조에 관한 연구(I)

  • 김형태 (한양대학교 무기재료공학과) ;
  • 이응상 (한양대학교 무기재료공학과)
  • Published : 1993.12.01

Abstract

In order to synthesize the heat resistance ceramics of LAS system, we studied on preparing the fine powder with homogeneity by sol-gel method using metal alkoxide. Various results were obtained depending on the composition and process. When the amount of H2O added at initial stage is higher than 10mol/$\ell$, and when the amount of catalyst is 0.1mol/$\ell$, the particle size of synthesized hydrate becomes finer. On condition that partial prehydrolysis time of TEOS is more than 50 hours, the monosized fine powder is obtained(below 1${\mu}{\textrm}{m}$).

Keywords

References

  1. J. Am. Ceram. Soc v.33 no.5 Compositional and Stability Relationship Among the Lithium Aluminosilicates: Eucryptite, Spodumene and Petalite Rustum Boy;E.F. Osborn;Della M. Roy
  2. Mechanical Behavior of Ceramics R.W. Davidge
  3. J. Am. Ceram. Soc. v.34 no.8 Thermal Expansion Properties of Some Synthethic Lithia Minerals F.A. Hummel
  4. J. Am. Ceram. Soc. v.42 no.8 Thermal Contraction of β-Eucryptite(Li₂O·Al₂O₃·2SiO₂) by X-Ray and Dilatometer Methods F.H. Gillery;E.A. Bush
  5. ゾル-ゲル法の 科學 作花濟夫
  6. The Insititute of Metals Fundamental Principles of Sol-Gel Technology R.W. Jones
  7. 日本 セラミックス 協會學術 論文誌 v.98 no.7 Preparation of β-Spondumeme Powder by Sol-Gel Process and Properties of Sintered Bodies H. Kobayashi;N. Ishibashi;T. Akiba;T. Mitamura
  8. Synthesis of Mullite and Cordierite Powder by Sol-Gel Process and their Sinterig Behavior D. Sporn;H. Schmidt
  9. Mat. Res. Soc Symp. Proc. v.73 no.135-142 Synthesis and Processing of the Sol-Gel derived β-Quatz Lithium Aluminium Silicates J. Covino;F.G.A. DE Laat
  10. '91 첨단공학(신소재분야) 연구보고서 Li₂O-Al₂O₃-SiO₂계 소지의 내열강화특성 이응상;최도문