Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
권호 표지
DOI QR코드

DOI QR Code

Optical properties of ZnS ceramics by hot press stack sintering process

고온 가압 적층 소결에 의한 황화아연 세라믹스의 광학성 특성

  • Park, Buem-Keun (Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Paik, Jong-Hoo (Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology)
  • 박범근 (한국세라믹기술원 전자융합본부) ;
  • 백종후 (한국세라믹기술원 전자융합본부)
  • Received : 2021.05.11
  • Accepted : 2021.05.23
  • Published : 2021.05.31
Download PDF
⟨ Previous Next ⟩

Abstract

During the manufacture of a ZnS lens with excellent transmittance in the mid-infrared region (3-5 ㎛) by the hot-press process, a single-layer sintering method is used in which one lens is manufactured in one process. Additional research is required to improve this single-layer sintering method because of its low manufacturing efficiency. To solve this problem, the variation in optical properties of ZnS lenses with change in sintering temperature was investigated by introducing a Stack sintering method that can sinter multiple lenses simultaneously. A carbon paper was placed between the molded lenses and sintered into five layers. The average permeability of 67% at medium infrared wavelengths of 3-5 ㎛ was excellent under the following sintering conditions: pressure of 50 MPa and temperature of 850℃. This value is 1% less than the average permeability in the case of single-layer sintering of the ZnS lens. It was confirmed that the stack sintering method developed in this study can be used to manufacture a large number of lenses with excellent characteristics in a single process.

Keywords

References

  1. Y. Li and Y. Wu, "Transparent and Luminescent ZnS Ceramic consolidated by Vacuum Hot Pressing Method", JACS Au, Vol. 98, No. 10, pp. 2872-2975, 2015.
  2. A. Rogalski and K. Chrzanowski, "INFRARED DEVICES AND TECHNIQUES (REVISION)", Metrology and Systems, Vol. 21, No. 4, pp. 565-618, 2014. https://doi.org/10.2478/mms-2014-0057
  3. C. Chlique, G. Delaizir, O. Merdrignac-Conance, C. Roucau, M. Dolle, P. Rozier, V. Bouquet, and X.H. Zhang, "A comparative study of ZnS powders Sintering by Hot Uniaxial Pressing(HUP) and Spark Plasma Sintering(SPS)", Opt. Mater., Vol. 33, No. 5, pp. 706-712, 2011. https://doi.org/10.1016/j.optmat.2010.10.008
  4. G. Bernard-Granger, N. Benameur, C. Guizarda, and M. Nygren, "Influence of graphite contamination on the optical properties of transparent obtained by spark plasma sintering", Scr. Mater., Vol. 60, No. 3, pp. 164-167, 2009. https://doi.org/10.1016/j.scriptamat.2008.09.027
  5. A. L. Chamberlain, W. G. Fahrenholtz, G. E. Hilmas, and D. T. Ellerby, "High-strength Zirconium Diboride-Based Ceramics", JACS Au, Vol. 87, No. 6, pp. 1170-1172, 2004.
  6. Z. Shizen, M.A. Hongli, R. Jean, M-C. Odile, A. JeanLuc, L. Jacqus, and Z. Xianghua, "Preparation and hot pressing of ZnS nano-powders for Producing transparent ceramics", Optoelectron. Adv. Mater., Vol. 1, No. 12, pp. 667-671, 2007.
  7. C. I. Kim, Y. B. Kim, S. Y. Yeo, Y. W. Hong, J. S. Yun, W. I. Park, Y. H. Jeong, J. H. Cho, and J. H. Paik, "Sintering and Optical Properties of ZnS Nanoparticles Sintered by Spark Plasma Sintering", J. Korean Inst. Electr. Electron. Mater. Eng., Vol. 30, No. 6, pp. 349-355, 2017. https://doi.org/10.4313/JKEM.2017.30.6.349
  8. T. Ueno, M. Hasegawa, M. Yoshimuri, H. Okada, T. Nishioka, K. Teraoka, A. Fujii, and S. Nakayama, "Development of ZnS Lenses for FIR Cameras", Electr. Wire Cable Energy, No. 69, pp. 48-53, 2009.
  9. B. H. Choi, D. S. Kim, K. T. Lee, B. J. Kim, J. S. Kang, and S. Nahmm, "Highly IR transparent ZnS ceramics sintered by vacuum hot press using hydrothermally produced ZnS nanopowders", JACS Au, Vol. 103, No. 4, pp. 2663-2673, 2020.
  10. S. Y. Yeo, B. K. Park, C. I. Kim, and J. H. Paik, "Optical Properties of Mid-infrared Transparent ZnS Ceramics with Different Molar Ratio of S/Zn", J. Sens. Sci. Technol, Vol. 28, No. 4, pp. 256-261, 2019. https://doi.org/10.5369/JSST.2019.28.4.256
  11. C. S. Park, S. Y. Yeo, T. H. Kwon, W.I. Park, J. S. Yun, Y. H. Jeong, Y. W. Hong, J. H. Cho, and J. H. Paik, "A Study of Middle Infrared Transparent Properties of ZnS Ceramics by the Change of Micro Structure", J. Korean Inst. Electr. Electron. Mater. Eng., Vol. 30, No. 11, pp. 722-727, 2017. https://doi.org/10.4313/JKEM.2017.30.11.722