Journal of Inorganic Materials, Volume. 36, Issue 4, 418(2021)

Preparation of (La0.2Nd0.2Sm0.2Gd0.2Er0.2)2Zr2O7 High-entropy Transparent Ceramics by Vacuum Sintering

Jianjun ZENG1... Kuibao ZHANG1,2,*, Daimeng CHEN1, Haiyan GUO1, Ting DENG1 and Kui LIU1 |Show fewer author(s)
Author Affiliations
  • 11. State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
  • 22. Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang 621010, China
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    High-entropy ceramic is a hot topic in the recent study of ceramic materials. High-entropy ceramics with excellent properties is the development trend of ceramic materials. In this research, high-entropy transparent ceramic was synthesized by combustion method combined with vacuum sintering. The result indicates that the mean grain size of high-entropy (La0.2Nd0.2Sm0.2Gd0.2Er0.2)2Zr2O7 powder is about 8 nm. And the high-entropy powder is disordered deficient fluorite structure. The final transparent ceramics sintered in vacuum furnace at different temperatures exhibit ordered pyrochlore structure. Sintering temperature has little effect on the transmittance of ceramics. And the in-line transmittance of as-prepared transparent ceramic can reach 74% at 1730 nm. There are many absorption peaks in the transmittance spectrum. With the increase of sintering temperature, the body density and grain size of ceramics increase, but the HV hardnesses decrease.

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    Jianjun ZENG, Kuibao ZHANG, Daimeng CHEN, Haiyan GUO, Ting DENG, Kui LIU. Preparation of (La0.2Nd0.2Sm0.2Gd0.2Er0.2)2Zr2O7 High-entropy Transparent Ceramics by Vacuum Sintering[J]. Journal of Inorganic Materials, 2021, 36(4): 418

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    Paper Information

    Category: RESEARCH PAPER

    Received: Jul. 2, 2020

    Accepted: --

    Published Online: Nov. 24, 2021

    The Author Email: ZHANG Kuibao (xiaobao320@163.com)

    DOI:10.15541/jim20200367

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