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The deformation behavior and fracture toughness of single crystal YSZ(111) by indentation.

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Title: The deformation behavior and fracture toughness of single crystal YSZ(111) by indentation.
Authors: Yen, Cheng-Yo1, Jian, Sheng-Rui2 srjian@gmail.com, Tseng, Yu-Chin3, Juang, Jenh-Yih3 jyjuang@g2.nctu.edu.tw
Source: Journal of Alloys & Compounds. Feb2018, Vol. 735, p2423-2427. 5p.
Subjects: Yttrium, Dislocation loops, Dislocations in crystals, Deformations (Mechanics), Indentation (Materials science), Zirconium oxide, Crystallography
Abstract: The nano-scale deformation behaviors and indentation-induced fracture features of the (111)-oriented yttrium-stabilized zirconia single crystal (YSZ(111)) were investigated by Berkovich and micro-Vicker indentations, respectively. The load-displacement curves in the Berkovich nano-indentation experiments evidently exhibited indentation-induced single “pop-in” phenomenon during loading, indicating that the nano-scale deformation in the YSZ(111) crystals is due primarily to the activities of dislocation nucleation and propagation. Based on this scenario, the number of nanoindentation-induced dislocation loops giving rise to the pop-in event was estimated to be around 2 × 10 5 with a critical radius of ∼2 nm. The hardness and Young's modulus of YSZ(111) single crystal obtained by the continuous contact stiffness measurements (CSM) mode were 22.3 ± 1.1 GPa and 270.6 ± 8.5 GPa, consistent with those reported previously in the literature. In addition, the fracture toughness of YSZ(111) single crystal was estimated to be about 1.4–1.6 MPa m 1/2 . [ABSTRACT FROM AUTHOR]
Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. 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
An: 126870284
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PubTypeId: academicJournal
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  Data: The deformation behavior and fracture toughness of single crystal YSZ(111) by indentation.
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  Data: <searchLink fieldCode="AR" term="%22Yen%2C+Cheng-Yo%22">Yen, Cheng-Yo</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jian%2C+Sheng-Rui%22">Jian, Sheng-Rui</searchLink><relatesTo>2</relatesTo><i> srjian@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Tseng%2C+Yu-Chin%22">Tseng, Yu-Chin</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Juang%2C+Jenh-Yih%22">Juang, Jenh-Yih</searchLink><relatesTo>3</relatesTo><i> jyjuang@g2.nctu.edu.tw</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Feb2018, Vol. 735, p2423-2427. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Yttrium%22">Yttrium</searchLink><br /><searchLink fieldCode="DE" term="%22Dislocation+loops%22">Dislocation loops</searchLink><br /><searchLink fieldCode="DE" term="%22Dislocations+in+crystals%22">Dislocations in crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Indentation+%28Materials+science%29%22">Indentation (Materials science)</searchLink><br /><searchLink fieldCode="DE" term="%22Zirconium+oxide%22">Zirconium oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Crystallography%22">Crystallography</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The nano-scale deformation behaviors and indentation-induced fracture features of the (111)-oriented yttrium-stabilized zirconia single crystal (YSZ(111)) were investigated by Berkovich and micro-Vicker indentations, respectively. The load-displacement curves in the Berkovich nano-indentation experiments evidently exhibited indentation-induced single “pop-in” phenomenon during loading, indicating that the nano-scale deformation in the YSZ(111) crystals is due primarily to the activities of dislocation nucleation and propagation. Based on this scenario, the number of nanoindentation-induced dislocation loops giving rise to the pop-in event was estimated to be around 2 × 10 5 with a critical radius of ∼2 nm. The hardness and Young's modulus of YSZ(111) single crystal obtained by the continuous contact stiffness measurements (CSM) mode were 22.3 ± 1.1 GPa and 270.6 ± 8.5 GPa, consistent with those reported previously in the literature. In addition, the fracture toughness of YSZ(111) single crystal was estimated to be about 1.4–1.6 MPa m 1/2 . [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. 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: 10.1016/j.jallcom.2017.12.022
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      – Code: eng
        Text: English
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        PageCount: 5
        StartPage: 2423
    Subjects:
      – SubjectFull: Yttrium
        Type: general
      – SubjectFull: Dislocation loops
        Type: general
      – SubjectFull: Dislocations in crystals
        Type: general
      – SubjectFull: Deformations (Mechanics)
        Type: general
      – SubjectFull: Indentation (Materials science)
        Type: general
      – SubjectFull: Zirconium oxide
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      – SubjectFull: Crystallography
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      – TitleFull: The deformation behavior and fracture toughness of single crystal YSZ(111) by indentation.
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            NameFull: Yen, Cheng-Yo
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            NameFull: Jian, Sheng-Rui
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            NameFull: Tseng, Yu-Chin
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            NameFull: Juang, Jenh-Yih
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            – D: 25
              M: 02
              Text: Feb2018
              Type: published
              Y: 2018
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