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Oxidation resistance and strength retention behavior of fibrous monolithic ZrB2-SiC ceramic.

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Title: Oxidation resistance and strength retention behavior of fibrous monolithic ZrB2-SiC ceramic.
Authors: Han, Qingyun1 (AUTHOR), Wei, Chuncheng1 (AUTHOR) chun_cheng@sdut.edu.cn, Wang, Longfei1 (AUTHOR), Yuan, Jieyan1 (AUTHOR), Zhou, Lijuan1 (AUTHOR), Wang, Peng1,2 (AUTHOR), Dong, Shuhua1 (AUTHOR)
Source: Journal of Materials Science. Jul2025, Vol. 60 Issue 25, p10255-10268. 14p.
Subjects: Diffusion barriers, Surface cracks, Flexural strength, Fracture toughness, Fracture strength
Abstract: In this study, fibrous monolithic precursors with uniform cell boundary were prepared by wet-spinning and co-extrusion, then the fibrous monolithic SiCw/ZrB2-SiC (FZS) and BN/ZrB2-SiC (FZN) ceramics with SiCw and BN as interface materials were compacted by hot pressing. The room temperature mechanical properties of FZS and FZN were investigated and compared. The flexural strength and fracture toughness of FZS ceramic at room temperature are 115 MPa and 3.4 MPa·m1/2, respectively, superior to FZN ceramic. The oxidation behavior and residual strength after oxidation of FZS and FZN ceramics were also compared. After 0.5 h oxidation, the strength and toughness of FZS ceramic could reach a highest value of 199 MPa and 4.06 MPa·m1/2, respectively. Meanwhile, the fracture work of FZS is 153 J/m2. It is worth noting that after 5 h of oxidation, FZS ceramic demonstrates excellent strength retention. The high strength retention of FZS after oxidation is mainly attributed to the fact that SiCw, as an interface layer, generates high viscosity SiO2 glass phase during 1500 ºC oxidation. The large amount of glass phase fills the surface cracks in FZS, and forms a dense protective diffusion barrier on the surface, hindering the further oxidation. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science is the property of Springer Nature 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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  Label: Title
  Group: Ti
  Data: Oxidation resistance and strength retention behavior of fibrous monolithic ZrB<subscript>2</subscript>-SiC ceramic.
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  Data: <searchLink fieldCode="AR" term="%22Han%2C+Qingyun%22">Han, Qingyun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wei%2C+Chuncheng%22">Wei, Chuncheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chun_cheng@sdut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Longfei%22">Wang, Longfei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yuan%2C+Jieyan%22">Yuan, Jieyan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Lijuan%22">Zhou, Lijuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Peng%22">Wang, Peng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dong%2C+Shuhua%22">Dong, Shuhua</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%22">Journal of Materials Science</searchLink>. Jul2025, Vol. 60 Issue 25, p10255-10268. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Diffusion+barriers%22">Diffusion barriers</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+cracks%22">Surface cracks</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="%22Fracture+strength%22">Fracture strength</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this study, fibrous monolithic precursors with uniform cell boundary were prepared by wet-spinning and co-extrusion, then the fibrous monolithic SiCw/ZrB2-SiC (FZS) and BN/ZrB2-SiC (FZN) ceramics with SiCw and BN as interface materials were compacted by hot pressing. The room temperature mechanical properties of FZS and FZN were investigated and compared. The flexural strength and fracture toughness of FZS ceramic at room temperature are 115 MPa and 3.4 MPa·m1/2, respectively, superior to FZN ceramic. The oxidation behavior and residual strength after oxidation of FZS and FZN ceramics were also compared. After 0.5 h oxidation, the strength and toughness of FZS ceramic could reach a highest value of 199 MPa and 4.06 MPa·m1/2, respectively. Meanwhile, the fracture work of FZS is 153 J/m2. It is worth noting that after 5 h of oxidation, FZS ceramic demonstrates excellent strength retention. The high strength retention of FZS after oxidation is mainly attributed to the fact that SiCw, as an interface layer, generates high viscosity SiO2 glass phase during 1500 ºC oxidation. The large amount of glass phase fills the surface cracks in FZS, and forms a dense protective diffusion barrier on the surface, hindering the further oxidation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Science is the property of Springer Nature 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: 10.1007/s10853-025-11096-x
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      – Code: eng
        Text: English
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        PageCount: 14
        StartPage: 10255
    Subjects:
      – SubjectFull: Diffusion barriers
        Type: general
      – SubjectFull: Surface cracks
        Type: general
      – SubjectFull: Flexural strength
        Type: general
      – SubjectFull: Fracture toughness
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      – SubjectFull: Fracture strength
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    Titles:
      – TitleFull: Oxidation resistance and strength retention behavior of fibrous monolithic ZrB2-SiC ceramic.
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            NameFull: Han, Qingyun
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            NameFull: Wei, Chuncheng
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            NameFull: Wang, Longfei
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            NameFull: Yuan, Jieyan
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            NameFull: Zhou, Lijuan
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            NameFull: Wang, Peng
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            – D: 01
              M: 07
              Text: Jul2025
              Type: published
              Y: 2025
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