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High-entropy ceramics

Publication ,  Journal Article
Oses, C; Toher, C; Curtarolo, S
Published in: Nature Reviews Materials
April 1, 2020

Disordered multicomponent systems, occupying the mostly uncharted centres of phase diagrams, were proposed in 2004 as innovative materials with promising applications. The idea was to maximize the configurational entropy to stabilize (near) equimolar mixtures and achieve more robust systems, which became known as high-entropy materials. Initial research focused mainly on metal alloys and nitride films. In 2015, entropy stabilization was demonstrated in a mixture of oxides. Other high-entropy disordered ceramics rapidly followed, stimulating the addition of more components to obtain materials expressing a blend of properties, often highly enhanced. The systems were soon proven to be useful in wide-ranging technologies, including thermal barrier coatings, thermoelectrics, catalysts, batteries and wear-resistant and corrosion-resistant coatings. In this Review, we discuss the current state of the disordered ceramics field by examining the applications and the high-entropy features fuelling them, covering both theoretical predictions and experimental results. The influence of entropy is unavoidable and can no longer be ignored. In the space of ceramics, it leads to new materials that, both as bulk and thin films, will play important roles in technology in the decades to come.

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Published In

Nature Reviews Materials

DOI

EISSN

2058-8437

Publication Date

April 1, 2020

Volume

5

Issue

4

Start / End Page

295 / 309

Related Subject Headings

  • 4016 Materials engineering
 

Citation

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Oses, C., Toher, C., & Curtarolo, S. (2020). High-entropy ceramics. Nature Reviews Materials, 5(4), 295–309. https://doi.org/10.1038/s41578-019-0170-8
Oses, C., C. Toher, and S. Curtarolo. “High-entropy ceramics.” Nature Reviews Materials 5, no. 4 (April 1, 2020): 295–309. https://doi.org/10.1038/s41578-019-0170-8.
Oses C, Toher C, Curtarolo S. High-entropy ceramics. Nature Reviews Materials. 2020 Apr 1;5(4):295–309.
Oses, C., et al. “High-entropy ceramics.” Nature Reviews Materials, vol. 5, no. 4, Apr. 2020, pp. 295–309. Scopus, doi:10.1038/s41578-019-0170-8.
Oses C, Toher C, Curtarolo S. High-entropy ceramics. Nature Reviews Materials. 2020 Apr 1;5(4):295–309.

Published In

Nature Reviews Materials

DOI

EISSN

2058-8437

Publication Date

April 1, 2020

Volume

5

Issue

4

Start / End Page

295 / 309

Related Subject Headings

  • 4016 Materials engineering