Mechanical properties of SPS sintered chalcogenide glass-ceramics with externally doped crystals
Mechanical properties of SPS sintered chalcogenide glass-ceramics with externally doped crystals
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DOI：
10.1016/j.ceramint.2022.10.321
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发表时间：
2022-10
影响因子：
5.2
通讯作者：
Jingwei Zhang;Yongnian Guan;Kelun Xia;Guangyue Jia;Jierong Gu;Zhi-yong Yang;Zijun Liu;Xiang Shen
中科院分区：
文献类型：
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作者：
Jingwei Zhang;Yongnian Guan;Kelun Xia;Guangyue Jia;Jierong Gu;Zhi-yong Yang;Zijun Liu;Xiang Shen
较低的机械性能限制了硫系玻璃在红外透镜中的应用。本文提出了提高硫系玻璃机械强度的一般方法。采用火花等离子烧结（SPS）法制备了一系列GaAs晶体掺杂的ge10as20se17te53和ZnS晶体掺杂的as2s5玻璃陶瓷。利用红外光谱（FTIR）、x射线衍射（XRD）、扫描电镜（SEM）、超微显微镜和维氏硬度等研究了晶体掺杂对微晶玻璃光学性能和力学性能的影响。结果表明，添加GaAs晶体和ZnS晶体可显著提高硫系玻璃的硬度和断裂韧性。减小晶体尺寸可进一步提高红外透过率和力学性能。
The low mechanical properties limit the application of chalcogenide glasses in the infrared lens. This paper proposes a general method for enhancing the mechanical strength of chalcogenide glasses. A series of GaAs crystal-doped Ge10As20Se17Te53and ZnS crystal-doped As2S5glass-ceramics were prepared by spark plasma sintering (SPS). The effects of crystal doping on the optical and mechanical properties of glass-ceramics were studied utilizing FTIR, XRD, SEM, ultramicroscopy, and Vickers hardness. The results show that adding GaAs crystal and ZnS crystal significantly improves the hardness and fracture toughness of the chalcogenide glasses. The infrared transmittance and mechanical properties can be further improved by reducing the crystal size.