AI Chat Paper
Note: Please note that the following content is generated by AMiner AI. SciOpen does not take any responsibility related to this content.
{{lang === 'zh_CN' ? '文章概述' : 'Summary'}}
{{lang === 'en_US' ? '中' : 'Eng'}}
Chat more with AI
PDF (2.4 MB)
Collect
Submit Manuscript AI Chat Paper
Show Outline
Outline
Show full outline
Hide outline
Outline
Show full outline
Hide outline
Research Article | Open Access

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

Yangjie HANRenwang YUHonghua LIUYanhui CHU( )
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
Show Author Information

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.

Electronic Supplementary Material

Download File(s)
s40145-021-0522-x_ESM.pdf (170 KB)

References

[1]
Rost CM, Sachet E, Borman T, et al. Entropy-stabilized oxides. Nat Commun 2015, 6: 8485.
[2]
Tseng KP, Yang Q, McCormack SJ, et al. High-entropy, phase-constrained, lanthanide sesquioxide. J Am Ceram Soc 2020, 103: 569-576.
[3]
Li F, Zhou L, Liu JX, et al. High-entropy pyrochlores with low thermal conductivity for thermal barrier coating materials. J Adv Ceram 2019, 8: 576-582.
[4]
Zhao ZF, Chen H, Xiang HM, et al. High entropy defective fluorite structured rare-earth niobates and tantalates for thermal barrier applications. J Adv Ceram 2020, 9: 303-311.
[5]
Osenciat N, Bérardan D, Dragoe D, et al. Charge compensation mechanisms in Li-substituted high-entropy oxides and influence on Li superionic conductivity. J Am Ceram Soc 2019, 102: 6156-6162.
[6]
Witte R, Sarkar A, Kruk R, et al. High-entropy oxides: An emerging prospect for magnetic rare-earth transition metal perovskites. Phys Rev Mater 2019, 3: 034406.
[7]
Jiang SC, Hu T, Gild J, et al. A new class of high-entropy perovskite oxides. Scripta Mater 2018, 142: 116-120.
[8]
Wright AJ, Huang CY, Walock MJ, et al. Sand corrosion, thermal expansion, and ablation of medium- and high-entropy compositionally complex fluorite oxides. J Am Ceram Soc 2021, 104: 448-462.
[9]
Pianassola M, Loveday M, McMurray JW, et al. Solid-state synthesis of multicomponent equiatomic rare-earth oxides. J Am Ceram Soc 2020, 103: 2908-2918.
[10]
Zhu JT, Meng X, Zhang P, et al. Dual-phase rare-earth- zirconate high-entropy ceramics with glass-like thermal conductivity. J Eur Ceram Soc 2021, 41: 2861-2869.
[11]
Ren K, Wang QK, Shao G, et al. Multicomponent high-entropy zirconates with comprehensive properties for advanced thermal barrier coating. Scripta Mater 2020, 178: 382-386.
[12]
Teng Z, Zhu LN, Tan YQ, et al. Synthesis and structures of high-entropy pyrochlore oxides. J Eur Ceram Soc 2020, 40: 1639-1643.
[13]
Zhao ZF, Xiang HM, Dai FZ, et al. (La0.2Ce0.2Nd0.2Sm0.2Eu0.2)2Zr2O7: A novel high-entropy ceramic with low thermal conductivity and sluggish grain growth rate. J Mater Sci Technol 2019, 35: 2647-2651.
[14]
Zhang KB, Li WW, Zeng JJ, et al. Preparation of (La0.2Nd0.2Sm0.2Gd0.2Yb0.2)2Zr2O7 high-entropy transparent ceramic using combustion synthesized nanopowder. J Alloys Compd 2020, 817: 153328.
[15]
Uno M, Kosuga A, Okui M, et al. Photoelectrochemical study of lanthanide zirconium oxides, Ln2Zr2O7 (Ln = La, Ce, Nd and Sm). J Alloys Compd 2006, 420: 291-297.
[16]
Ma L, Ma WM, Sun XD, et al. Structure properties and sintering densification of Gd2Zr2O7 nanoparticles prepared via different acid combustion methods. J Rare Earths 2015, 33: 195-201.
[17]
Toby BH. EXPGUI, a graphical user interface for GSAS. J Appl Cryst 2001, 34: 210-213.
[18]
Khorsand Zak A, Abd Majid WH, Abrishami ME, et al. X-ray analysis of ZnO nanoparticles by Williamson-Hall and size-strain plot methods. Solid State Sci 2011, 13: 251-256.
[19]
Chiu CW, Kao HCI, Sheu HS, et al. Phase transition and the thermal activated ordering of the ions with pyrochlore phase in Ln2Zr2O7 (Ln = Sm, Eu). J Chin Chem Soc 2010, 57: 925-931.
[20]
Kong LG, Karatchevtseva I, Gregg DJ, et al. A novel chemical route to prepare La2Zr2O7 pyrochlore. J Am Ceram Soc 2013, 96: 935-941.
[21]
Popov VV, Menushenkov AP, Gaynanov BR, et al. Features of formation and evolution of crystal and local structures in nanocrystalline Ln2Zr2O7 (Ln = La-Tb). J Phys: Conf Ser 2017, 941: 012079.
[22]
Saradhi MP, Ushakov SV, Navrotsky A. Fluorite- pyrochlore transformation in Eu2Zr2O7—Direct calorimetric measurement of phase transition, formation and surface enthalpies. RSC Adv 2012, 2: 3328.
[23]
Vegard L. Die Konstitution der mischkristalle und die raumfüllung der atome. Zeitschrift Für Physik 1921, 5: 17-26.
Journal of Advanced Ceramics
Pages 136-144
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

1139

Views

204

Downloads

22

Crossref

25

Web of Science

21

Scopus

2

CSCD

Altmetrics

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

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

Return