Fabrication of Infrared-Transparent Y2O3-MgO Nanocomposite Ceramic and Its Properties

被引：0

作者：

Liu Mengyin ^{[1
,2
,3
]}

Zhang Gaofeng ^{[1
]}

Wang Yuezhong ^{[1
]}

Zhang Tong ^{[1
]}

Li Xiaopeng ^{[1
]}

Gan Shuowen ^{[1
]}

Zhang Rongshi ^{[1
]}

Chu Jianhua ^{[2
]}

机构：

[1] Tianjin Jinhang Tech Phys Inst, Tianjin Key Lab Opt Thin Film, Tianjin 300308, Peoples R China

[2] Zhangjiagang Huipu Opt Mat Co, Suzhou 215628, Peoples R China

[3] Nankai Univ, Tianjin 300350, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2020年 / 49卷 / 02期

关键词：

infrared-transparent ceramic; Y2O3-MgO nanocomposite; hot-press; optical properties; mechanical properties; THERMAL-SHOCK RESISTANCE; YTTRIA CERAMICS; TEMPERATURE; COMBUSTION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Y2O3-MgO nanocomposite powders with different Y2O3/MgO ratios were prepared by ball milling using commercial Y2O3, MgO powders as the starting materials. The crystal structure, morphology, and composition as well as its uniformity of the Y2O3-MgO nanocomposite powder were characterized by XRD, SEM, and EDS, respectively. And then the hot-pressing was used to prepare infrared-transparent Y2O3-MgO nanocomposite ceramic. The FTIR and Vickers hardness tester were used to reveal the optical and mechanical properties of the Y2O3-MgO nanocomposite ceramic with different preparation parameters. The effects of critical parameters such as powder ratio, hot-pressing temperature, holding time of temperature and pressure on the particle size, densification, and the optical and mechanical properties of the nanocomposite ceramic were also researched. Results show that the transmittance and hardness reach to 80% (6 mu m) and 12.3 GPa, respectively, with optimal conditions (sintering at 1500 degrees C/15 min with Y2O3:MgO=1:1).

引用

页码：718 / 722

页数：5

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