열처리 시간에 따른 중적외선 투과 ZnS 세라믹의 합성과 특성
Synthesis and Characterization of Middle Infrared Transmission ZnS Ceramics by Heat Treatment Time
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In this study, a heat treatment process was applied to ZnS nano-powder to improve the optical properties of ZnS ceramic, and the characteristics of heat treatment time were studied. The ZnS nano-powders were synthesized by hydrothermal synthesis. The heat treat-ment was carried out at 550 C for 0.5, 1, 2, and 4 hours in a vacuum atmosphere (10-2 torr). X-ray diffraction and scanning electronmicroscope analyzes confirmed the change of crystal phase and grain size to confirm the structural change with heat treatment time. The heat treated ZnS nano-powder was sintered by hot pressing, and the change of optical properties of the ZnS ceramic was analyzed by infrared spectroscopy
Abstract
In this study, a heat treatment process was applied to ZnS nano-powder to improve the optical properties of ZnS ceramic, and the characteristics of heat treatment time were studied. The ZnS nano-powders were synthesized by hydrothermal synthesis. The heat treat-ment was carried out at 550 C for 0.5, 1, 2, and 4 hours in a vacuum atmosphere (10-2 torr). X-ray diffraction and scanning electronmicroscope analyzes confirmed the change of crystal phase and grain size to confirm the structural change with heat treatment time. The heat treated ZnS nano-powder was sintered by hot pressing, and the change of optical properties of the ZnS ceramic was analyzed by infrared spectroscopy
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