Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study of Middle Infrared Transparent Properties of ZnS Ceramics by the Change of Micro Structure

미세 구조 변화에 따른 ZnS 세라믹의 중적외선 투과 특성 연구

  • Park, Chang-Sun (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Yeo, Seo-Yeong (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Kwon, Tae-Hyeong (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Park, Woon-ik (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Yun, Ji-Sun (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Jeong, Young-Hun (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Hong, Youn-Woo (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Cho, Jeong-Ho (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Paik, Jong-Hoo (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology)
  • 박창순 (한국세라믹기술원 전자소재부품센터) ;
  • 여서영 (한국세라믹기술원 전자소재부품센터) ;
  • 권태형 (한국세라믹기술원 전자소재부품센터) ;
  • 박운익 (한국세라믹기술원 전자소재부품센터) ;
  • 윤지선 (한국세라믹기술원 전자소재부품센터) ;
  • 정영훈 (한국세라믹기술원 전자소재부품센터) ;
  • 홍연우 (한국세라믹기술원 전자소재부품센터) ;
  • 조정호 (한국세라믹기술원 전자소재부품센터) ;
  • 백종후 (한국세라믹기술원 전자소재부품센터)
  • Received : 2017.10.11
  • Accepted : 2017.10.17
  • Published : 2017.11.01
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Abstract

Transparent ZnS ceramics were synthesized by hydrothermal synthesis ($180^{\circ}C$ for 70 h), and were sintered by a hot press process at $950^{\circ}C$. To confirm the optical properties of the ZnS ceramics after sintering for various sintering holding times, we performed X-ray diffraction analysis, scanning electron microscopy, and Fourier-transform-infrared spectroscopy. The ZnS nanopowders was found to be single-phase (cubic) without any hexagonal phase. However, the hexagonal phase is formed and increases in content with increasing sintering holding time. The density of the ZnS ceramics was above 99.7%, except for the unsintered one. The ZnS ceramics showed high transmittance (~70%) when sintered for more than 2 h.

Keywords

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