High-Entropy Pyrochlore A(2)B(2)O(7) with Both Heavy and Light Rare-Earth Elements at the A Site

A novel class of high-entropy pyrochlore ceramics (HEPCs) with multiple heavy and light rare-earth elements at the A site were successfully synthesized via solid-state reaction. Both the XRD patterns and Raman spectroscopy demonstrated the single pyrochlore structure feature of seven kinds of HEPCs....

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Detalles Bibliográficos
Autores principales: Teng, Zhen, Tan, Yongqiang, Zhang, Haibin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8745905/
https://www.ncbi.nlm.nih.gov/pubmed/35009272
http://dx.doi.org/10.3390/ma15010129
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author Teng, Zhen
Tan, Yongqiang
Zhang, Haibin
author_facet Teng, Zhen
Tan, Yongqiang
Zhang, Haibin
author_sort Teng, Zhen
collection PubMed
description A novel class of high-entropy pyrochlore ceramics (HEPCs) with multiple heavy and light rare-earth elements at the A site were successfully synthesized via solid-state reaction. Both the XRD patterns and Raman spectroscopy demonstrated the single pyrochlore structure feature of seven kinds of HEPCs. Electron microscopic images revealed the typical morphology and the homogeneous distribution of all rare-earth elements. It can be concluded that the significance of configuration entropy in the HEPC system has promoted the tervalent lanthanide nuclides to form a single pyrochlore structure. This work is expected to provide guidance for the further design of high-entropy pyrochlore/fluorite ceramics.
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spelling pubmed-87459052022-01-11 High-Entropy Pyrochlore A(2)B(2)O(7) with Both Heavy and Light Rare-Earth Elements at the A Site Teng, Zhen Tan, Yongqiang Zhang, Haibin Materials (Basel) Article A novel class of high-entropy pyrochlore ceramics (HEPCs) with multiple heavy and light rare-earth elements at the A site were successfully synthesized via solid-state reaction. Both the XRD patterns and Raman spectroscopy demonstrated the single pyrochlore structure feature of seven kinds of HEPCs. Electron microscopic images revealed the typical morphology and the homogeneous distribution of all rare-earth elements. It can be concluded that the significance of configuration entropy in the HEPC system has promoted the tervalent lanthanide nuclides to form a single pyrochlore structure. This work is expected to provide guidance for the further design of high-entropy pyrochlore/fluorite ceramics. MDPI 2021-12-24 /pmc/articles/PMC8745905/ /pubmed/35009272 http://dx.doi.org/10.3390/ma15010129 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Teng, Zhen
Tan, Yongqiang
Zhang, Haibin
High-Entropy Pyrochlore A(2)B(2)O(7) with Both Heavy and Light Rare-Earth Elements at the A Site
title High-Entropy Pyrochlore A(2)B(2)O(7) with Both Heavy and Light Rare-Earth Elements at the A Site
title_full High-Entropy Pyrochlore A(2)B(2)O(7) with Both Heavy and Light Rare-Earth Elements at the A Site
title_fullStr High-Entropy Pyrochlore A(2)B(2)O(7) with Both Heavy and Light Rare-Earth Elements at the A Site
title_full_unstemmed High-Entropy Pyrochlore A(2)B(2)O(7) with Both Heavy and Light Rare-Earth Elements at the A Site
title_short High-Entropy Pyrochlore A(2)B(2)O(7) with Both Heavy and Light Rare-Earth Elements at the A Site
title_sort high-entropy pyrochlore a(2)b(2)o(7) with both heavy and light rare-earth elements at the a site
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8745905/
https://www.ncbi.nlm.nih.gov/pubmed/35009272
http://dx.doi.org/10.3390/ma15010129
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