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Processing and properties of B4C ceramics reinforced with TiB2‒CrB2 solid solution.

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Title: Processing and properties of B4C ceramics reinforced with TiB2‒CrB2 solid solution.
Authors: Li, Yuxiao1,2 (AUTHOR), Yang, Qingqing1,2 (AUTHOR), Zou, Ji1,2 (AUTHOR) ji.zou@whut.edu.cn, Qiu, Shuaihang1,2 (AUTHOR), Liang, Huayue1,2 (AUTHOR), Liu, Jingjing3 (AUTHOR) jingjingliu@whut.edu.cn, Ma, Haibin4 (AUTHOR), Ji, Wei1,2 (AUTHOR), Wang, Weimin1,2 (AUTHOR), Fu, Zhengyi1,2 (AUTHOR)
Source: Journal of the American Ceramic Society. Sep2025, Vol. 108 Issue 9, p1-13. 13p.
Subjects: Vickers hardness, Flexural strength, Fracture toughness, Grain refinement, Composite materials, Boron carbides
Abstract: Lightweight boron carbide (B4C)‐based composites with optimized mechanical properties were consolidated at 1850°C‒1900°C through a combination of carbide boronizing and spark plasma sintering, with (Ti0.9Cr0.1)B2 reinforcement contents systematically varied from 0 to 30 vol.%. Densification behavior analysis revealed that with increasing carbide contents in the reactants, the exothermic reactivity and volumetric shrinkage became more pronounced, facilitating enhanced densification at lower temperatures. Additions of (Ti0.9Cr0.1)B2‐induced significant grain refinement of B4C, the averaged grain size of B4C in B4C‒20 vol.% (Ti0.9Cr0.1)B2 composites (0.71 ± 0.27 µm) is even smaller than those from the raw powders (∼1 µm). B4C with 20 vol.% (Ti0.9Cr0.1)B2 showed balanced mechanical properties including flexural strength of 620.23 ± 20.01 MPa, fracture toughness of 5.50 ± 0.04 MPa m1/2, Vickers hardness (Hv) of 37.72 ± 1.79 GPa, and a specific hardness of 13.01 GPa cm3 g−1. Above enhancement mechanisms were systematically correlated with microstructural characteristics through applications of Griffith's fracture theory. [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.)
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An: 186371210
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  Label: Title
  Group: Ti
  Data: Processing and properties of B<subscript>4</subscript>C ceramics reinforced with TiB<subscript>2</subscript>‒CrB<subscript>2</subscript> solid solution.
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Yuxiao%22">Li, Yuxiao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Qingqing%22">Yang, Qingqing</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zou%2C+Ji%22">Zou, Ji</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> ji.zou@whut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Qiu%2C+Shuaihang%22">Qiu, Shuaihang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liang%2C+Huayue%22">Liang, Huayue</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Jingjing%22">Liu, Jingjing</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> jingjingliu@whut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Ma%2C+Haibin%22">Ma, Haibin</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ji%2C+Wei%22">Ji, Wei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Weimin%22">Wang, Weimin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fu%2C+Zhengyi%22">Fu, Zhengyi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Ceramic+Society%22">Journal of the American Ceramic Society</searchLink>. Sep2025, Vol. 108 Issue 9, p1-13. 13p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Vickers+hardness%22">Vickers hardness</searchLink><br /><searchLink fieldCode="DE" term="%22Flexural+strength%22">Flexural strength</searchLink><br /><searchLink fieldCode="DE" term="%22Fracture+toughness%22">Fracture toughness</searchLink><br /><searchLink fieldCode="DE" term="%22Grain+refinement%22">Grain refinement</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Boron+carbides%22">Boron carbides</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Lightweight boron carbide (B4C)‐based composites with optimized mechanical properties were consolidated at 1850°C‒1900°C through a combination of carbide boronizing and spark plasma sintering, with (Ti0.9Cr0.1)B2 reinforcement contents systematically varied from 0 to 30 vol.%. Densification behavior analysis revealed that with increasing carbide contents in the reactants, the exothermic reactivity and volumetric shrinkage became more pronounced, facilitating enhanced densification at lower temperatures. Additions of (Ti0.9Cr0.1)B2‐induced significant grain refinement of B4C, the averaged grain size of B4C in B4C‒20 vol.% (Ti0.9Cr0.1)B2 composites (0.71 ± 0.27 µm) is even smaller than those from the raw powders (∼1 µm). B4C with 20 vol.% (Ti0.9Cr0.1)B2 showed balanced mechanical properties including flexural strength of 620.23 ± 20.01 MPa, fracture toughness of 5.50 ± 0.04 MPa m1/2, Vickers hardness (Hv) of 37.72 ± 1.79 GPa, and a specific hardness of 13.01 GPa cm3 g−1. Above enhancement mechanisms were systematically correlated with microstructural characteristics through applications of Griffith's fracture theory. [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.20658
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      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 1
    Subjects:
      – SubjectFull: Vickers hardness
        Type: general
      – SubjectFull: Flexural strength
        Type: general
      – SubjectFull: Fracture toughness
        Type: general
      – SubjectFull: Grain refinement
        Type: general
      – SubjectFull: Composite materials
        Type: general
      – SubjectFull: Boron carbides
        Type: general
    Titles:
      – TitleFull: Processing and properties of B4C ceramics reinforced with TiB2‒CrB2 solid solution.
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            NameFull: Li, Yuxiao
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            – D: 01
              M: 09
              Text: Sep2025
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              Y: 2025
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