Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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A Study on Enhancement of MIR Transmittance of Hydrothermally Synthesized ZnS Nanoparticles with Sintering Pressure

수열합성된 황화아연 나노입자의 소결 압력에 따른 중적외선향상에 관한 연구

  • Yeo, Seo-Yeong (Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Park, Buem-Keun (Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Paik, Jong-Hoo (Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology)
  • Received : 2019.12.17
  • Accepted : 2020.01.31
  • Published : 2020.01.31
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Abstract

This study investigated the influence of various sintering pressures of ZnS nanoparticles prepared by hydrothermal synthesis performed at 220 ℃ for 20 h. The hydrothermally synthesized ZnS nanoparticles formed a cubic phase. The ZnS nanoparticles were sintered using a hot-press process at 850 ℃ for 2 h under pressures of 10, 20, 30, 40, 50, 60, and 70 MPa. The ZnS ceramics indicate the cubic phase is the major phase and the hexagonal phase is the minor phase. In the ZnS ceramics, as the sintering pressure increased, a decrement in the hexagonal phase was confirmed. When the sintering pressure equaled or exceeded 30 MPa, the transmittance and density improved with reductions in porosity and hexagonal phase. A sintering pressure of 60 MPa delivered the highest transmittance (69.7%).

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References

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