Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Preparation of the Mullite Fiber from Alkoxide by Sol-Gel Process

알콕사이드로부터 졸겔법에 의한 물라이트 섬유의 제조

  • 김구대 (한국과학기술원 세라믹스부) ;
  • 정형진 (한국과학기술원 세라믹스부) ;
  • 이해욱 (한국과학기술원 세라믹스부)
  • Published : 1991.02.01
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Abstract

Polymeric alumina sol and polymeric silica sol were synthesized from aluminum sec-butoxide and tetraethyl orthosilicate, respectively as starting materials. A clear mullite sol was obtained by mixing these sols. When the mullite sol had a proper viscosity which was dependent on drying time, the fibers were fabricated by spinning. The optimum viscosity for fabrication of mullite fibers was 103-104 cps, and the fibers with various sizeswere made using the sols. The mullite was a major phase of the calcined fibers and the diameters of the fibers were about 50$\mu\textrm{m}$.

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References

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