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Entropy-stabilized oxides
Configurational disorder can be compositionally engineered into mixed oxide by populating a single sublattice with many distinct cations. The formulations promote novel and entropy-stabilized forms of crystalline matter where metal cations are incorporated in new ways. Here, through rigorous experim...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Pub. Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4598836/ https://www.ncbi.nlm.nih.gov/pubmed/26415623 http://dx.doi.org/10.1038/ncomms9485 |
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author | Rost, Christina M. Sachet, Edward Borman, Trent Moballegh, Ali Dickey, Elizabeth C. Hou, Dong Jones, Jacob L. Curtarolo, Stefano Maria, Jon-Paul |
author_facet | Rost, Christina M. Sachet, Edward Borman, Trent Moballegh, Ali Dickey, Elizabeth C. Hou, Dong Jones, Jacob L. Curtarolo, Stefano Maria, Jon-Paul |
author_sort | Rost, Christina M. |
collection | PubMed |
description | Configurational disorder can be compositionally engineered into mixed oxide by populating a single sublattice with many distinct cations. The formulations promote novel and entropy-stabilized forms of crystalline matter where metal cations are incorporated in new ways. Here, through rigorous experiments, a simple thermodynamic model, and a five-component oxide formulation, we demonstrate beyond reasonable doubt that entropy predominates the thermodynamic landscape, and drives a reversible solid-state transformation between a multiphase and single-phase state. In the latter, cation distributions are proven to be random and homogeneous. The findings validate the hypothesis that deliberate configurational disorder provides an orthogonal strategy to imagine and discover new phases of crystalline matter and untapped opportunities for property engineering. |
format | Online Article Text |
id | pubmed-4598836 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-45988362015-10-21 Entropy-stabilized oxides Rost, Christina M. Sachet, Edward Borman, Trent Moballegh, Ali Dickey, Elizabeth C. Hou, Dong Jones, Jacob L. Curtarolo, Stefano Maria, Jon-Paul Nat Commun Article Configurational disorder can be compositionally engineered into mixed oxide by populating a single sublattice with many distinct cations. The formulations promote novel and entropy-stabilized forms of crystalline matter where metal cations are incorporated in new ways. Here, through rigorous experiments, a simple thermodynamic model, and a five-component oxide formulation, we demonstrate beyond reasonable doubt that entropy predominates the thermodynamic landscape, and drives a reversible solid-state transformation between a multiphase and single-phase state. In the latter, cation distributions are proven to be random and homogeneous. The findings validate the hypothesis that deliberate configurational disorder provides an orthogonal strategy to imagine and discover new phases of crystalline matter and untapped opportunities for property engineering. Nature Pub. Group 2015-09-29 /pmc/articles/PMC4598836/ /pubmed/26415623 http://dx.doi.org/10.1038/ncomms9485 Text en Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Rost, Christina M. Sachet, Edward Borman, Trent Moballegh, Ali Dickey, Elizabeth C. Hou, Dong Jones, Jacob L. Curtarolo, Stefano Maria, Jon-Paul Entropy-stabilized oxides |
title | Entropy-stabilized oxides |
title_full | Entropy-stabilized oxides |
title_fullStr | Entropy-stabilized oxides |
title_full_unstemmed | Entropy-stabilized oxides |
title_short | Entropy-stabilized oxides |
title_sort | entropy-stabilized oxides |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4598836/ https://www.ncbi.nlm.nih.gov/pubmed/26415623 http://dx.doi.org/10.1038/ncomms9485 |
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