Journal of Ceramic Processing Research

  • 제19권5호
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  • Pages.383-387
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  • 2018
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  • 1229-9162(pISSN)
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  • 2672-152X(eISSN)
한양대학교 세라믹연구소 (Ceramic Processing Research Center)
권호 표지

Ultra-fast densification of highly transparent Y2O3 ceramic with La2O3 as sintering aid by spark plasma sintering

  • Park, Cheol Woo (Division of Advanced Materials Science and Engineering, Hanyang University) ;
  • Park, Jae Hwa (Division of Advanced Materials Science and Engineering, Hanyang University) ;
  • Kang, Hyo Sang (Division of Advanced Materials Science and Engineering, Hanyang University) ;
  • Lee, Hee Ae (Division of Advanced Materials Science and Engineering, Hanyang University) ;
  • Lee, Joo Hyung (Division of Advanced Materials Science and Engineering, Hanyang University) ;
  • In, Jun Hyeong (Division of Advanced Materials Science and Engineering, Hanyang University) ;
  • Shim, Kwang Bo (Division of Advanced Materials Science and Engineering, Hanyang University)
  • 발행 : 2018.10.01
⟨ 이전 논문 다음 논문 ⟩

초록

Highly transparent $Y_2O_3$ ceramics were produced using spark plasma sintering (SPS) at $1600^{\circ}C$ and 30 MPa for 5 min. When the SPS process was applied with various amounts of $La_2O_3$ as dopant. The specimen doped with 3 mol% $La_2O_3$ showed the highest density, and rapid particle growth and pore growth occurred, exhibiting that the relative density and average grain size are 99.2% and $17.2{\mu}m$, respectively. The specimen showed excellent transmittance of 79.44% in the visible light region (600 nm), resulting that $La_2O_3$ would be a useful dopant for improving the transmittance and mechanical properties of transparent $Y_2O_3$ ceramics produced with SPS.

키워드

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