Effect of pressurization on the fracture toughness of borosilicate glasses

Kuo Hao Lee; Yongjian Yang; Linfeng Ding; Benedikt Ziebarth; John C. Mauro

doi:10.1111/jace.18207

Effect of pressurization on the fracture toughness of borosilicate glasses

Kuo Hao Lee, Yongjian Yang, Linfeng Ding, Benedikt Ziebarth, John C. Mauro

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

In this study, hot-compression is applied to two multicomponent borosilicate glasses, Borofloat33 (Boro33) and N-BK7, using molecular dynamics simulations. The effects of pressure on elastic properties, surface energy, and fracture toughness ((Formula presented.) are investigated. It is found that the impact on (Formula presented.) is mainly dominated by the change of Young's modulus under pressure, which is proportional to the relative change in density. Between the two glasses under investigation, (Formula presented.) can be improved more effectively by the hot-compression process for Boro33, due to its higher concentration of 3-coordinated boron (B³), which facilitates densification via B³ to B⁴ conversion under compression.

Original language	English (US)
Pages (from-to)	2536-2545
Number of pages	10
Journal	Journal of the American Ceramic Society
Volume	105
Issue number	4
DOIs	https://doi.org/10.1111/jace.18207
State	Published - Apr 2022

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/jace.18207

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title = "Effect of pressurization on the fracture toughness of borosilicate glasses",

abstract = "In this study, hot-compression is applied to two multicomponent borosilicate glasses, Borofloat33 (Boro33) and N-BK7, using molecular dynamics simulations. The effects of pressure on elastic properties, surface energy, and fracture toughness ((Formula presented.) are investigated. It is found that the impact on (Formula presented.) is mainly dominated by the change of Young's modulus under pressure, which is proportional to the relative change in density. Between the two glasses under investigation, (Formula presented.) can be improved more effectively by the hot-compression process for Boro33, due to its higher concentration of 3-coordinated boron (B3), which facilitates densification via B3 to B4 conversion under compression.",

author = "Lee, {Kuo Hao} and Yongjian Yang and Linfeng Ding and Benedikt Ziebarth and Mauro, {John C.}",

note = "Funding Information: This work was funded by Schott AG (Mainz, Germany). Linfeng Ding is funded by the Deutsche Forschungsgemeinschaft (DFG) through a DFG Fellowship (GZ: DI 2545). We would like to thank Dr. Hai Mei for the valuable discussions and technical support about the simulations. We would also like to offer our special thanks and respects to Dr. Mark J. Davis who, although no longer with us, was one of the world's leading authorities on glass‐ceramics. He has provided valuable suggestions and collaboration on our projects and is co‐author on several of our preceding papers. Publisher Copyright: {\textcopyright} 2021 The American Ceramic Society",

year = "2022",

month = apr,

doi = "10.1111/jace.18207",

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volume = "105",

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AU - Lee, Kuo Hao

AU - Yang, Yongjian

AU - Ding, Linfeng

AU - Ziebarth, Benedikt

AU - Mauro, John C.

N1 - Funding Information: This work was funded by Schott AG (Mainz, Germany). Linfeng Ding is funded by the Deutsche Forschungsgemeinschaft (DFG) through a DFG Fellowship (GZ: DI 2545). We would like to thank Dr. Hai Mei for the valuable discussions and technical support about the simulations. We would also like to offer our special thanks and respects to Dr. Mark J. Davis who, although no longer with us, was one of the world's leading authorities on glass‐ceramics. He has provided valuable suggestions and collaboration on our projects and is co‐author on several of our preceding papers. Publisher Copyright: © 2021 The American Ceramic Society

PY - 2022/4

Y1 - 2022/4

N2 - In this study, hot-compression is applied to two multicomponent borosilicate glasses, Borofloat33 (Boro33) and N-BK7, using molecular dynamics simulations. The effects of pressure on elastic properties, surface energy, and fracture toughness ((Formula presented.) are investigated. It is found that the impact on (Formula presented.) is mainly dominated by the change of Young's modulus under pressure, which is proportional to the relative change in density. Between the two glasses under investigation, (Formula presented.) can be improved more effectively by the hot-compression process for Boro33, due to its higher concentration of 3-coordinated boron (B3), which facilitates densification via B3 to B4 conversion under compression.

AB - In this study, hot-compression is applied to two multicomponent borosilicate glasses, Borofloat33 (Boro33) and N-BK7, using molecular dynamics simulations. The effects of pressure on elastic properties, surface energy, and fracture toughness ((Formula presented.) are investigated. It is found that the impact on (Formula presented.) is mainly dominated by the change of Young's modulus under pressure, which is proportional to the relative change in density. Between the two glasses under investigation, (Formula presented.) can be improved more effectively by the hot-compression process for Boro33, due to its higher concentration of 3-coordinated boron (B3), which facilitates densification via B3 to B4 conversion under compression.

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Effect of pressurization on the fracture toughness of borosilicate glasses

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