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Materials 2017, 10(4), 390;

Preparation and Optical Properties of Infrared Transparent 3Y-TZP Ceramics

State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
Authors to whom correspondence should be addressed.
Academic Editor: Jérôme Chevalier
Received: 21 February 2017 / Revised: 25 March 2017 / Accepted: 29 March 2017 / Published: 7 April 2017
(This article belongs to the Section Manufacturing Processes and Systems)
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In the present study, a tough tetragonal zirconia polycrystalline (Y-TZP) material was developed for use in high-speed infrared windows and domes. The influence of the preparation procedure and the microstructure on the material’s optical properties was evaluated by SEM and FT-IR spectroscopy. It was revealed that a high transmittance up to 77% in the three- to five-micrometer IR region could be obtained when the sample was pre-sintered at 1225 °C and subjected to hot isostatic pressing (HIP) at 1275 °C for two hours. The infrared transmittance and emittance at elevated temperature were also examined. The in-line transmittance remained stable as the temperature increased to 427 °C, with degradation being observed only near the infrared cutoff edge. Additionally, the emittance property of 3Y-TZP ceramic at high temperature was found to be superior to those of sapphire and spinel. Overall, the results indicate that Y-TZP ceramic is a potential candidate for high-speed infrared windows and domes. View Full-Text
Keywords: transparent 3Y-TZP ceramics; infrared windows and domes; emittance transparent 3Y-TZP ceramics; infrared windows and domes; emittance

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Wang, C.; Mao, X.; Peng, Y.-P.; Jiang, B.; Fan, J.; Xu, Y.; Zhang, L.; Zhao, J. Preparation and Optical Properties of Infrared Transparent 3Y-TZP Ceramics. Materials 2017, 10, 390.

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