Exceptionally low thermal conductivity in distorted high entropy alloy
Recent investigations indicate that high entropy alloys (HEAs) may exhibit distinctive thermal characteristics compared to traditional alloys. Through a blend of experiments and atomistic simulations, this study showcases that the lattice thermal conductivity of a highly distorted single-phase B2 al...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-01-01
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| Series: | Materials Research Letters |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2024.2413101 |
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| _version_ | 1841555135024594944 |
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| author | Hang Wang Shihua Ma Weijiang Zhao Quanfeng He Yong Liu Shijun Zhao Yong Yang |
| author_facet | Hang Wang Shihua Ma Weijiang Zhao Quanfeng He Yong Liu Shijun Zhao Yong Yang |
| author_sort | Hang Wang |
| collection | DOAJ |
| description | Recent investigations indicate that high entropy alloys (HEAs) may exhibit distinctive thermal characteristics compared to traditional alloys. Through a blend of experiments and atomistic simulations, this study showcases that the lattice thermal conductivity of a highly distorted single-phase B2 alloy with the composition of (CoNi)50(TiZrHf)50 is as low as less than 1 W/(m·K), akin to that of ceramics like alumina, and remains stable across temperatures from 300 to 900 K. This remarkable thermal behavior is attributed to significant lattice distortion and atomic mass variation within this alloy. These findings suggest potential applications for distorted HEAs in thermal insulation technologies tailored for challenging environments. |
| format | Article |
| id | doaj-art-016013517f8648d2b5c5355c3cc3b312 |
| institution | Kabale University |
| issn | 2166-3831 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj-art-016013517f8648d2b5c5355c3cc3b3122025-01-08T06:03:50ZengTaylor & Francis GroupMaterials Research Letters2166-38312025-01-01131243410.1080/21663831.2024.2413101Exceptionally low thermal conductivity in distorted high entropy alloyHang Wang0Shihua Ma1Weijiang Zhao2Quanfeng He3Yong Liu4Shijun Zhao5Yong Yang6Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, People’s Republic of ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, People’s Republic of ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, People’s Republic of ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, People’s Republic of ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha, People’s Republic of ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, People’s Republic of ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Hong Kong, People’s Republic of ChinaRecent investigations indicate that high entropy alloys (HEAs) may exhibit distinctive thermal characteristics compared to traditional alloys. Through a blend of experiments and atomistic simulations, this study showcases that the lattice thermal conductivity of a highly distorted single-phase B2 alloy with the composition of (CoNi)50(TiZrHf)50 is as low as less than 1 W/(m·K), akin to that of ceramics like alumina, and remains stable across temperatures from 300 to 900 K. This remarkable thermal behavior is attributed to significant lattice distortion and atomic mass variation within this alloy. These findings suggest potential applications for distorted HEAs in thermal insulation technologies tailored for challenging environments.https://www.tandfonline.com/doi/10.1080/21663831.2024.2413101High entropy alloyslattice distortionthermal conductivityphonon scattering |
| spellingShingle | Hang Wang Shihua Ma Weijiang Zhao Quanfeng He Yong Liu Shijun Zhao Yong Yang Exceptionally low thermal conductivity in distorted high entropy alloy Materials Research Letters High entropy alloys lattice distortion thermal conductivity phonon scattering |
| title | Exceptionally low thermal conductivity in distorted high entropy alloy |
| title_full | Exceptionally low thermal conductivity in distorted high entropy alloy |
| title_fullStr | Exceptionally low thermal conductivity in distorted high entropy alloy |
| title_full_unstemmed | Exceptionally low thermal conductivity in distorted high entropy alloy |
| title_short | Exceptionally low thermal conductivity in distorted high entropy alloy |
| title_sort | exceptionally low thermal conductivity in distorted high entropy alloy |
| topic | High entropy alloys lattice distortion thermal conductivity phonon scattering |
| url | https://www.tandfonline.com/doi/10.1080/21663831.2024.2413101 |
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