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Research Article | Open Access

Synthesis of the superfine high-entropy zirconate nanopowders by polymerized complex method

Yangjie HAN, Renwang YU, Honghua LIU, Yanhui CHU( )
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
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Abstract

The high-purity and superfine high-entropy zirconate nanopowders, namely (Y0.25La0.25Sm0.25Eu0.25)2Zr2O7 nanopowders, without agglomeration, were successfully synthesized via polymerized complex method at low temperatures for the first time. The results showed that the crystallinity degree, lattice strain, and particle size of the as-synthesized powders were gradually enhanced with the increase of the synthesis temperature from 800 to 1300 ℃. The as-synthesized powders involved fluorite phase in the range of 800-1200 ℃ while they underwent the phase evolution from fluorite to pyrochlore at 1300 ℃. It is worth mentioning that the as-synthesized powders at 900 ℃ are of the highest quality among all the as-synthesized powders, which is due to the fact that they not only possess the particle size of 11 nm without agglomeration, but also show high purity and good compositional uniformity.

Keywords

high-entropy oxideszirconatesnanopowderspolymerized complex method

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Journal of Advanced Ceramics
Volume 11 Issue 1,
January 2022
Pages 136-144
DOI: 10.1007/s40145-021-0522-x
Cite this article:
HAN Y, YU R, LIU H, et al. Synthesis of the superfine high-entropy zirconate nanopowders by polymerized complex method. Journal of Advanced Ceramics, 2022, 11(1): 136-144. https://doi.org/10.1007/s40145-021-0522-x

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Received: 15 March 2021
Revised: 28 July 2021
Accepted: 31 July 2021
Published: 24 December 2021
© The Author(s) 2021.

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