The apparent relationship between Poisson's ratio and fracture energy has been used to guide the discovery of ductile glasses with a brittle-to-ductile (BTD) transition at Poisson's ratio around 0.32. Most organic and metallic glasses possess Poisson's ratio above 0.32, and thus, feature fracture energy that is around three orders of magnitude higher than that of oxide glasses, which feature Poisson's ratio typically below 0.30. However, whether the BTD transition can also be observed in oxide glasses remains unknown due to the lack of fracture energy measurements on oxide glasses with high Poisson's ratio. In this work, we measure the fracture energy of six oxide glasses with high Poisson's ratio between 0.30 and 0.34. We find no clear relationship between the two parameters even in those that possess the same Poisson's ratio as ductile metallic glasses. This suggests that Poisson's ratio is not the main property to enhance the fracture energy of oxide glasses. To this end, we instead find a positive relation between fracture energy and Young's modulus of oxide glasses, and even for some metallic glasses, which could explain their absence of ductility.
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Fracture energy of high-Poisson's ratio oxide glasses
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28 June 2022
Research Article|
June 27 2022
Fracture energy of high-Poisson's ratio oxide glasses
Special Collection:
Advances in Multi-Scale Mechanical Characterization
Theany To
;
Theany To
(Conceptualization, Investigation, Writing – original draft)
1
Department of Chemistry and Bioscience, Aalborg University
, 9220 Aalborg, Denmark
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Christian Gamst;
Christian Gamst
(Investigation, Writing – review and editing)
1
Department of Chemistry and Bioscience, Aalborg University
, 9220 Aalborg, Denmark
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Martin B. Østergaard
;
Martin B. Østergaard
(Investigation, Writing – review and editing)
1
Department of Chemistry and Bioscience, Aalborg University
, 9220 Aalborg, Denmark
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Lars R. Jensen
;
Lars R. Jensen
(Investigation, Writing – review and editing)
2
Department of Materials and Production, Aalborg University
, 9220 Aalborg, Denmark
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Morten M. Smedskjaer
Morten M. Smedskjaer
a)
(Conceptualization, Supervision, Writing – review and editing)
1
Department of Chemistry and Bioscience, Aalborg University
, 9220 Aalborg, Denmark
a)Author to whom correspondence should be addressed: mos@bio.aau.dk
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a)Author to whom correspondence should be addressed: mos@bio.aau.dk
Note: This paper is part of the Special Topic on Advances in Multi-Scale Mechanical Characterization.
J. Appl. Phys. 131, 245105 (2022)
Article history
Received:
April 22 2022
Accepted:
June 09 2022
Citation
Theany To, Christian Gamst, Martin B. Østergaard, Lars R. Jensen, Morten M. Smedskjaer; Fracture energy of high-Poisson's ratio oxide glasses. J. Appl. Phys. 28 June 2022; 131 (24): 245105. https://doi.org/10.1063/5.0096855
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