Separating the Role of Mixing‐Entropy on the Dynamics of Glass‐Forming Liquids
Abstract While the concept of high entropy has gained prominence in materials design, disentangling specific impacts of entropy on material properties from the enthalpy of mixing remains elusive. It is demonstrated that the role of entropy can be distinguished from the dynamics of glass‐forming liqu...
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| Format: | Article |
| Language: | English |
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Wiley
2025-07-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202502568 |
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| author | Qing‐Zhou Bu Jia‐Xin Zhang Hui‐Ru Zhang Ran Li Tao Zhang Lin Liu Peng Yu Hai‐Bin Yu |
| author_facet | Qing‐Zhou Bu Jia‐Xin Zhang Hui‐Ru Zhang Ran Li Tao Zhang Lin Liu Peng Yu Hai‐Bin Yu |
| author_sort | Qing‐Zhou Bu |
| collection | DOAJ |
| description | Abstract While the concept of high entropy has gained prominence in materials design, disentangling specific impacts of entropy on material properties from the enthalpy of mixing remains elusive. It is demonstrated that the role of entropy can be distinguished from the dynamics of glass‐forming liquids through micro‐alloying. Based on experiment analysis of 79 compositions, liquid fragility is found to consistently decreases under two conditions: i) when the alloying content x is minimal, irrespective of the elements used; or ii) when increasing the diversity of alloying elements at a constant x, namely the high‐entropy micro‐alloying. These observations are consistent with thermodynamic principles that favor an entropy‐dominated regime over enthalpy. These findings elucidate the subtle impact of mixing entropy on material properties and provide evidence of the entropy nature of glass transition. |
| format | Article |
| id | doaj-art-d7becafd4ba04c438c4259b8445445f1 |
| institution | DOAJ |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-d7becafd4ba04c438c4259b8445445f12025-08-20T03:04:57ZengWileyAdvanced Science2198-38442025-07-011226n/an/a10.1002/advs.202502568Separating the Role of Mixing‐Entropy on the Dynamics of Glass‐Forming LiquidsQing‐Zhou Bu0Jia‐Xin Zhang1Hui‐Ru Zhang2Ran Li3Tao Zhang4Lin Liu5Peng Yu6Hai‐Bin Yu7Wuhan National High Magnetic Field Center and School of PhysicsHuazhong University of Science and TechnologyWuhan430074ChinaWuhan National High Magnetic Field Center and School of PhysicsHuazhong University of Science and TechnologyWuhan430074ChinaWuhan National High Magnetic Field Center and School of PhysicsHuazhong University of Science and TechnologyWuhan430074ChinaKey Laboratory of Aerospace Materials and Performance (Ministry of Education)School of Materials Science and EngineeringBeihang UniversityBeijing100191ChinaKey Laboratory of Aerospace Materials and Performance (Ministry of Education)School of Materials Science and EngineeringBeihang UniversityBeijing100191ChinaState Key Laboratory of Materials Processing and Die & Mould TechnologySchool of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074ChinaCollege of Physics and Electronic EngineeringChongqing Normal UniversityChongqing401331ChinaWuhan National High Magnetic Field Center and School of PhysicsHuazhong University of Science and TechnologyWuhan430074ChinaAbstract While the concept of high entropy has gained prominence in materials design, disentangling specific impacts of entropy on material properties from the enthalpy of mixing remains elusive. It is demonstrated that the role of entropy can be distinguished from the dynamics of glass‐forming liquids through micro‐alloying. Based on experiment analysis of 79 compositions, liquid fragility is found to consistently decreases under two conditions: i) when the alloying content x is minimal, irrespective of the elements used; or ii) when increasing the diversity of alloying elements at a constant x, namely the high‐entropy micro‐alloying. These observations are consistent with thermodynamic principles that favor an entropy‐dominated regime over enthalpy. These findings elucidate the subtle impact of mixing entropy on material properties and provide evidence of the entropy nature of glass transition.https://doi.org/10.1002/advs.202502568fragilityhigh entropy alloymetallic glassmixing entropy |
| spellingShingle | Qing‐Zhou Bu Jia‐Xin Zhang Hui‐Ru Zhang Ran Li Tao Zhang Lin Liu Peng Yu Hai‐Bin Yu Separating the Role of Mixing‐Entropy on the Dynamics of Glass‐Forming Liquids Advanced Science fragility high entropy alloy metallic glass mixing entropy |
| title | Separating the Role of Mixing‐Entropy on the Dynamics of Glass‐Forming Liquids |
| title_full | Separating the Role of Mixing‐Entropy on the Dynamics of Glass‐Forming Liquids |
| title_fullStr | Separating the Role of Mixing‐Entropy on the Dynamics of Glass‐Forming Liquids |
| title_full_unstemmed | Separating the Role of Mixing‐Entropy on the Dynamics of Glass‐Forming Liquids |
| title_short | Separating the Role of Mixing‐Entropy on the Dynamics of Glass‐Forming Liquids |
| title_sort | separating the role of mixing entropy on the dynamics of glass forming liquids |
| topic | fragility high entropy alloy metallic glass mixing entropy |
| url | https://doi.org/10.1002/advs.202502568 |
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