# Composition and pressure effects on the structure, elastic properties and hardness of aluminoborosilicate glass

Jingshi Wu*, Timothy M. Gross, Liping Huang, Siva Priya Jaccani, Randall E. Youngman, Sylwester J. Rzoska, Michal Bockowski, Saurav Bista, Jonathan F. Stebbins, Morten Mattrup Smedskjær

*Kontaktforfatter

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

### Resumé

A series of calcium-aluminoborosilicate glasses with different ratios of B2O3/SiO2 have been isostatically compressed at 1 and 2 GPa at temperatures above their glass transition temperatures. Boron and aluminum coordination numbers were quantified for recovered samples by 11B magic angle spinning (MAS) nuclear magnetic resonance (NMR) and 27Al MAS NMR spectroscopy at ambient pressure and temperature. The average coordination numbers increase as the glass was compressed to higher pressure and the glass with higher concentration of boron shows higher recoverable densification. The atomic structure changes can be represented by oxygen packing density, Young's modulus and Vickers hardness number show good correlations with oxygen packing density as well. In general Poisson's ratio decreases as the average coordination number of network formers increases, however the interpretation of the changes in Poisson's ratio with pressure for each glass composition presents a more complicated case and no straightforward trend with compaction was found.

Originalsprog Engelsk 119797 Journal of Non-Crystalline Solids 530 11 0022-3093 https://doi.org/10.1016/j.jnoncrysol.2019.119797 Udgivet - 15 feb. 2020

### Fingerprint

Composition effects
Pressure effects
pressure effects
hardness
elastic properties
Hardness
coordination number
Glass
Magic angle spinning
Boron
glass
packing density
Poisson ratio
metal spinning
boron
Oxygen
nuclear magnetic resonance
Vickers hardness
magnetic resonance spectroscopy
oxygen

### Citer dette

Wu, Jingshi ; Gross, Timothy M. ; Huang, Liping ; Jaccani, Siva Priya ; Youngman, Randall E. ; Rzoska, Sylwester J. ; Bockowski, Michal ; Bista, Saurav ; Stebbins, Jonathan F. ; Smedskjær, Morten Mattrup. / Composition and pressure effects on the structure, elastic properties and hardness of aluminoborosilicate glass. I: Journal of Non-Crystalline Solids. 2020 ; Bind 530.
@article{581d3ae8f6874c3e8e231643649cbf9d,
title = "Composition and pressure effects on the structure, elastic properties and hardness of aluminoborosilicate glass",
abstract = "A series of calcium-aluminoborosilicate glasses with different ratios of B2O3/SiO2 have been isostatically compressed at 1 and 2 GPa at temperatures above their glass transition temperatures. Boron and aluminum coordination numbers were quantified for recovered samples by 11B magic angle spinning (MAS) nuclear magnetic resonance (NMR) and 27Al MAS NMR spectroscopy at ambient pressure and temperature. The average coordination numbers increase as the glass was compressed to higher pressure and the glass with higher concentration of boron shows higher recoverable densification. The atomic structure changes can be represented by oxygen packing density, Young's modulus and Vickers hardness number show good correlations with oxygen packing density as well. In general Poisson's ratio decreases as the average coordination number of network formers increases, however the interpretation of the changes in Poisson's ratio with pressure for each glass composition presents a more complicated case and no straightforward trend with compaction was found.",
author = "Jingshi Wu and Gross, {Timothy M.} and Liping Huang and Jaccani, {Siva Priya} and Youngman, {Randall E.} and Rzoska, {Sylwester J.} and Michal Bockowski and Saurav Bista and Stebbins, {Jonathan F.} and Smedskj{\ae}r, {Morten Mattrup}",
year = "2020",
month = "2",
day = "15",
doi = "10.1016/j.jnoncrysol.2019.119797",
language = "English",
volume = "530",
journal = "Journal of Non-Crystalline Solids",
issn = "0022-3093",
publisher = "Elsevier",

}

Composition and pressure effects on the structure, elastic properties and hardness of aluminoborosilicate glass. / Wu, Jingshi; Gross, Timothy M.; Huang, Liping; Jaccani, Siva Priya; Youngman, Randall E.; Rzoska, Sylwester J.; Bockowski, Michal; Bista, Saurav; Stebbins, Jonathan F.; Smedskjær, Morten Mattrup.

I: Journal of Non-Crystalline Solids, Bind 530, 119797, 15.02.2020.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Composition and pressure effects on the structure, elastic properties and hardness of aluminoborosilicate glass

AU - Wu, Jingshi

AU - Gross, Timothy M.

AU - Huang, Liping

AU - Jaccani, Siva Priya

AU - Youngman, Randall E.

AU - Rzoska, Sylwester J.

AU - Bockowski, Michal

AU - Bista, Saurav

AU - Stebbins, Jonathan F.

AU - Smedskjær, Morten Mattrup

PY - 2020/2/15

Y1 - 2020/2/15

N2 - A series of calcium-aluminoborosilicate glasses with different ratios of B2O3/SiO2 have been isostatically compressed at 1 and 2 GPa at temperatures above their glass transition temperatures. Boron and aluminum coordination numbers were quantified for recovered samples by 11B magic angle spinning (MAS) nuclear magnetic resonance (NMR) and 27Al MAS NMR spectroscopy at ambient pressure and temperature. The average coordination numbers increase as the glass was compressed to higher pressure and the glass with higher concentration of boron shows higher recoverable densification. The atomic structure changes can be represented by oxygen packing density, Young's modulus and Vickers hardness number show good correlations with oxygen packing density as well. In general Poisson's ratio decreases as the average coordination number of network formers increases, however the interpretation of the changes in Poisson's ratio with pressure for each glass composition presents a more complicated case and no straightforward trend with compaction was found.

AB - A series of calcium-aluminoborosilicate glasses with different ratios of B2O3/SiO2 have been isostatically compressed at 1 and 2 GPa at temperatures above their glass transition temperatures. Boron and aluminum coordination numbers were quantified for recovered samples by 11B magic angle spinning (MAS) nuclear magnetic resonance (NMR) and 27Al MAS NMR spectroscopy at ambient pressure and temperature. The average coordination numbers increase as the glass was compressed to higher pressure and the glass with higher concentration of boron shows higher recoverable densification. The atomic structure changes can be represented by oxygen packing density, Young's modulus and Vickers hardness number show good correlations with oxygen packing density as well. In general Poisson's ratio decreases as the average coordination number of network formers increases, however the interpretation of the changes in Poisson's ratio with pressure for each glass composition presents a more complicated case and no straightforward trend with compaction was found.

U2 - 10.1016/j.jnoncrysol.2019.119797

DO - 10.1016/j.jnoncrysol.2019.119797

M3 - Journal article

VL - 530

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

M1 - 119797

ER -