Journal
MATERIALS
Volume 10, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/ma10040390
Keywords
transparent 3Y-TZP ceramics; infrared windows and domes; emittance
Categories
Funding
- National Youth Natural Science Foundation of China [51302284, 6140031038]
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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 degrees C and subjected to hot isostatic pressing (HIP) at 1275 degrees 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 degrees 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.
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