DOI: 10.1111/jace.15779. (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high‐entropy ceramics with low thermal conductivity

(Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high‐entropy ceramics with low thermal conductivity

10.1111/jace.15779

Crossref journal-article

Wiley

Journal of the American Ceramic Society (311)

Abstract

AbstractA novel high‐entropy carbide ceramic, (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C, with a single‐phase rock salt structure, was synthesized by spark plasma sintering. X‐ray diffraction confirmed the formation of a single‐phase rock salt structure at 26‐1140°C in Argon atmosphere, in which the 5 metal elements may share a cation position while the C element occupies the anion position. (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C exhibits a much lower thermal diffusivity and conductivity than the binary carbides HfC, ZrC, TaC, and TiC, which may result from the significant phonon scattering at its distorted anion sublattice. (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C inherits the high elastic modulus and hardness of the binary carbide ceramics.

Bibliography

Yan, X., Constantin, L., Lu, Y., Silvain, J., Nastasi, M., & Cui, B. (2018). (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C highâentropy ceramics with low thermal conductivity. Journal of the American Ceramic Society, 101(10), 4486â4491. Portico.

Authors 6

Xueliang Yan (first)
Loic Constantin (additional)
Yongfeng Lu (additional)
Jean‐François Silvain (additional)
Michael Nastasi (additional)
Bai Cui (additional)

References 29 Referenced 518

Dates

Type	When
Created	7 years, 3 months ago (May 19, 2018, 11:56 p.m.)
Deposited	1 year, 11 months ago (Sept. 14, 2023, 7:27 a.m.)
Indexed	2 days, 6 hours ago (Aug. 29, 2025, 6:42 a.m.)
Issued	7 years, 3 months ago (May 28, 2018)
Published	7 years, 3 months ago (May 28, 2018)
Published Online	7 years, 3 months ago (May 28, 2018)
Published Print	6 years, 10 months ago (Oct. 1, 2018)

Funders 2

University of Nebraska-Lincoln 10.13039/100008114
Region: Americas
gov (Universities (academic only))
Labels6
1. University of Nebraska, Lincoln
2. University of Nebraska
3. Nebraska
4. Universitas Nebraskensis
5. UNL
6. NU
National Science Foundation 10.13039/100000001
Region: Americas
gov (National government)
Labels4
1. U.S. National Science Foundation
2. NSF
3. US NSF
4. USA NSF
Awards1
1. ECCS: 1542182

BibTeX

@article{Yan_2018, title={(Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high‐entropy ceramics with low thermal conductivity}, volume={101}, ISSN={1551-2916}, url={http://dx.doi.org/10.1111/jace.15779}, DOI={10.1111/jace.15779}, number={10}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={Yan, Xueliang and Constantin, Loic and Lu, Yongfeng and Silvain, Jean‐François and Nastasi, Michael and Cui, Bai}, year={2018}, month=may, pages={4486–4491} }

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