Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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$ZrO_2$ Ceramic Fiber Fabrication by Sol-Gel Processing

Sol-Gel법에 의한$ZrO_2$ Ceramic Fiber 제조

  • ;
  • ;
  • W.C. LaCourse (N.Y. State College of Ceramics, Alfred University)
  • 김선욱 (산업과학기술연구소(RIST)) ;
  • 김성숭 (산업과학기술연구소(RIST)) ;
  • Published : 1990.06.01
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Abstract

Zirconia gel fibers were fabricated by sol-gel processing using zirconium alkoxides and 2, 4-pentanedione. Their phase transformation and microstructural evolution were studied after heat treatments up to 150$0^{\circ}C$. Tetragonal ZrO2 began to form at 50$0^{\circ}C$ and followed by monoclinic, tetragonal phase during subsequent heat treatments at 1000, 150$0^{\circ}C$ for 1hour respectively. During cooling from 150$0^{\circ}C$, cracks were created, propagated along grain boundaries due to the volume change from tetragonal to monoclinic transformation.

Keywords

References

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