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Submillimeter‐Scale ZrB2 Single‐Crystals: Efficient Molten‐Salt Synthesis and Outstanding Physical Properties.

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Title: Submillimeter‐Scale ZrB2 Single‐Crystals: Efficient Molten‐Salt Synthesis and Outstanding Physical Properties.
Authors: Yang, Tingyu1 (AUTHOR), Peng, Jie1 (AUTHOR), Liu, Jianghao1,2,3 (AUTHOR) liujianghao2014@wust.edu.cn, Xie, Tongfei1 (AUTHOR), Huang, Zhong1,2 (AUTHOR), Zhang, Haijun1,2,3 (AUTHOR) zhanghaijun@wust.edu.cn, Chen, Xinyuan1 (AUTHOR), Wang, Zewen1 (AUTHOR), Zhang, Shaowei4 (AUTHOR) s.zhang@exeter.ac.uk
Source: Journal of the American Ceramic Society. Apr2026, Vol. 109 Issue 4, p1-12. 12p.
Subjects: Zirconium boride, Elastic modulus, Fused salts, Properties of matter, Microwave heating, Doping agents (Chemistry), Thermal conductivity
Abstract: Owing to the absence of grain boundaries and their hindrance effects on stress transfer and electron/phonon transmissions, single‐crystalline materials possess the theoretically‐utmost physiochemical properties that are greatly superior to those of their poly‐crystalline counterparts. However, due to their strong covalent‐bonding strengths, which resulted in ultra‐high melting points and extremely‐low diffusion coefficients, single‐crystalline IVB‐VB transition‐metal diborides with macroscopic‐scale sizes cannot be obtained by the conventional methods for preparing single‐crystalline materials. Herein, benefiting from the advanced molten salt method co‐modified by the techniques of chemical doping, pre‐compaction treatment, and microwave‐radiation, submillimeter‐scale V‐doped ZrB2 single‐crystals with rod‐like morphologies and aspect ratios up to 1000 were successfully prepared. And the necessitated processing conditions of 1473 K/40 min were remarkably milder than those of its counterpart methods. More importantly, the elastic modulus, electrical resistivities, and thermal conductivities of as‐obtained (Zr0.95V0.05)B2 single‐crystals were determined to be up to 278.6 GPa, 21.6 µΩ·cm, and 56.3 W·m−1·K−1, respectively, which obviously outperformed those of their poly‐crystalline counterparts. This research was predicted to offer a promising route for energy‐saving and highly‐efficient preparation of single‐crystalline IVB‐VB transition‐metal diborides with macroscopic‐scale sizes and intrinsically exceptional physiochemical properties, thus satisfying the demands of directly utilized high‐performance devices. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Submillimeter‐Scale ZrB<subscript>2</subscript> Single‐Crystals: Efficient Molten‐Salt Synthesis and Outstanding Physical Properties.
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  Data: <searchLink fieldCode="AR" term="%22Yang%2C+Tingyu%22">Yang, Tingyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Peng%2C+Jie%22">Peng, Jie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Jianghao%22">Liu, Jianghao</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> liujianghao2014@wust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Xie%2C+Tongfei%22">Xie, Tongfei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Zhong%22">Huang, Zhong</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Haijun%22">Zhang, Haijun</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> zhanghaijun@wust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Xinyuan%22">Chen, Xinyuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Zewen%22">Wang, Zewen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Shaowei%22">Zhang, Shaowei</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> s.zhang@exeter.ac.uk</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Ceramic+Society%22">Journal of the American Ceramic Society</searchLink>. Apr2026, Vol. 109 Issue 4, p1-12. 12p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Zirconium+boride%22">Zirconium boride</searchLink><br /><searchLink fieldCode="DE" term="%22Elastic+modulus%22">Elastic modulus</searchLink><br /><searchLink fieldCode="DE" term="%22Fused+salts%22">Fused salts</searchLink><br /><searchLink fieldCode="DE" term="%22Properties+of+matter%22">Properties of matter</searchLink><br /><searchLink fieldCode="DE" term="%22Microwave+heating%22">Microwave heating</searchLink><br /><searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+conductivity%22">Thermal conductivity</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Owing to the absence of grain boundaries and their hindrance effects on stress transfer and electron/phonon transmissions, single‐crystalline materials possess the theoretically‐utmost physiochemical properties that are greatly superior to those of their poly‐crystalline counterparts. However, due to their strong covalent‐bonding strengths, which resulted in ultra‐high melting points and extremely‐low diffusion coefficients, single‐crystalline IVB‐VB transition‐metal diborides with macroscopic‐scale sizes cannot be obtained by the conventional methods for preparing single‐crystalline materials. Herein, benefiting from the advanced molten salt method co‐modified by the techniques of chemical doping, pre‐compaction treatment, and microwave‐radiation, submillimeter‐scale V‐doped ZrB2 single‐crystals with rod‐like morphologies and aspect ratios up to 1000 were successfully prepared. And the necessitated processing conditions of 1473 K/40 min were remarkably milder than those of its counterpart methods. More importantly, the elastic modulus, electrical resistivities, and thermal conductivities of as‐obtained (Zr0.95V0.05)B2 single‐crystals were determined to be up to 278.6 GPa, 21.6 µΩ·cm, and 56.3 W·m−1·K−1, respectively, which obviously outperformed those of their poly‐crystalline counterparts. This research was predicted to offer a promising route for energy‐saving and highly‐efficient preparation of single‐crystalline IVB‐VB transition‐metal diborides with macroscopic‐scale sizes and intrinsically exceptional physiochemical properties, thus satisfying the demands of directly utilized high‐performance devices. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1111/jace.70699
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 12
        StartPage: 1
    Subjects:
      – SubjectFull: Zirconium boride
        Type: general
      – SubjectFull: Elastic modulus
        Type: general
      – SubjectFull: Fused salts
        Type: general
      – SubjectFull: Properties of matter
        Type: general
      – SubjectFull: Microwave heating
        Type: general
      – SubjectFull: Doping agents (Chemistry)
        Type: general
      – SubjectFull: Thermal conductivity
        Type: general
    Titles:
      – TitleFull: Submillimeter‐Scale ZrB2 Single‐Crystals: Efficient Molten‐Salt Synthesis and Outstanding Physical Properties.
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            NameFull: Yang, Tingyu
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            NameFull: Peng, Jie
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            NameFull: Liu, Jianghao
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            NameFull: Xie, Tongfei
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            NameFull: Huang, Zhong
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            NameFull: Chen, Xinyuan
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            NameFull: Wang, Zewen
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            NameFull: Zhang, Shaowei
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              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
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