Pressure-Induced Changes in Inter-Diffusivity and Compressive Stress in Chemically Strengthened Glass

Mouritz Nolsøe Svenson, Lynn M. Thirion, Randall E. Youngman, John C. Mauro, Sylwester J. Rzoska, Michal Bockowski, Morten Mattrup Smedskjær

Publikation: Konferencebidrag uden forlag/tidsskriftKonferenceabstrakt til konferenceForskningpeer review

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Resumé

Glass exhibits a significant change in microstructure and properties when subjected to high pressure, since the short- and intermediate-range structures of a glass are tunable through compression. Understanding the link between the microscopic structure and macroscopic properties of glasses under high pressure is important, since the glass structures frozen-in under elevated pressure may give rise to properties unattainable under ambient pressure. Chemical strengthening of glass through K+-for-Na+ ion exchange is currently receiving significant interest due to the increasing demand for stronger and more damage resistant glasses. However, the interplay among isostatic compression, pressure-induced changes in alkali diffusivity, compressive stress generated through ion exchange, and the resulting mechanical properties are poorly understood. In this work, we employ a specially designed gas pressure chamber to compress bulk glass samples isostatically up to 1 GPa at elevated temperature before or after the ion exchange treatment of an industrial sodium-magnesium aluminosilicate glass. Compression of the samples prior to ion exchange leads to a decreased Na+-K+ inter-diffusivity, increased compressive stress, and slightly increased hardness. Compression after the ion exchange treatment changes the shape of the potassium-sodium diffusion profiles and significantly increases glass hardness. We discuss these results in terms of the underlying structural changes in network-modifier environments and overall network densification.
OriginalsprogEngelsk
Publikationsdato4 dec. 2014
StatusUdgivet - 4 dec. 2014
Begivenhed2014 MRS Fall Meeting - Boston, USA
Varighed: 30 nov. 20145 dec. 2014

Konference

Konference2014 MRS Fall Meeting
LandUSA
ByBoston
Periode30/11/201405/12/2014

Citer dette

Svenson, M. N., Thirion, L. M., Youngman, R. E., Mauro, J. C., Rzoska, S. J., Bockowski, M., & Smedskjær, M. M. (2014). Pressure-Induced Changes in Inter-Diffusivity and Compressive Stress in Chemically Strengthened Glass. Abstract fra 2014 MRS Fall Meeting, Boston, USA.
Svenson, Mouritz Nolsøe ; Thirion, Lynn M. ; Youngman, Randall E. ; Mauro, John C. ; Rzoska, Sylwester J. ; Bockowski, Michal ; Smedskjær, Morten Mattrup. / Pressure-Induced Changes in Inter-Diffusivity and Compressive Stress in Chemically Strengthened Glass. Abstract fra 2014 MRS Fall Meeting, Boston, USA.
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abstract = "Glass exhibits a significant change in microstructure and properties when subjected to high pressure, since the short- and intermediate-range structures of a glass are tunable through compression. Understanding the link between the microscopic structure and macroscopic properties of glasses under high pressure is important, since the glass structures frozen-in under elevated pressure may give rise to properties unattainable under ambient pressure. Chemical strengthening of glass through K+-for-Na+ ion exchange is currently receiving significant interest due to the increasing demand for stronger and more damage resistant glasses. However, the interplay among isostatic compression, pressure-induced changes in alkali diffusivity, compressive stress generated through ion exchange, and the resulting mechanical properties are poorly understood. In this work, we employ a specially designed gas pressure chamber to compress bulk glass samples isostatically up to 1 GPa at elevated temperature before or after the ion exchange treatment of an industrial sodium-magnesium aluminosilicate glass. Compression of the samples prior to ion exchange leads to a decreased Na+-K+ inter-diffusivity, increased compressive stress, and slightly increased hardness. Compression after the ion exchange treatment changes the shape of the potassium-sodium diffusion profiles and significantly increases glass hardness. We discuss these results in terms of the underlying structural changes in network-modifier environments and overall network densification.",
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Svenson, MN, Thirion, LM, Youngman, RE, Mauro, JC, Rzoska, SJ, Bockowski, M & Smedskjær, MM 2014, 'Pressure-Induced Changes in Inter-Diffusivity and Compressive Stress in Chemically Strengthened Glass' 2014 MRS Fall Meeting, Boston, USA, 30/11/2014 - 05/12/2014, .

Pressure-Induced Changes in Inter-Diffusivity and Compressive Stress in Chemically Strengthened Glass. / Svenson, Mouritz Nolsøe; Thirion, Lynn M.; Youngman, Randall E.; Mauro, John C.; Rzoska, Sylwester J.; Bockowski, Michal; Smedskjær, Morten Mattrup.

2014. Abstract fra 2014 MRS Fall Meeting, Boston, USA.

Publikation: Konferencebidrag uden forlag/tidsskriftKonferenceabstrakt til konferenceForskningpeer review

TY - ABST

T1 - Pressure-Induced Changes in Inter-Diffusivity and Compressive Stress in Chemically Strengthened Glass

AU - Svenson, Mouritz Nolsøe

AU - Thirion, Lynn M.

AU - Youngman, Randall E.

AU - Mauro, John C.

AU - Rzoska, Sylwester J.

AU - Bockowski, Michal

AU - Smedskjær, Morten Mattrup

PY - 2014/12/4

Y1 - 2014/12/4

N2 - Glass exhibits a significant change in microstructure and properties when subjected to high pressure, since the short- and intermediate-range structures of a glass are tunable through compression. Understanding the link between the microscopic structure and macroscopic properties of glasses under high pressure is important, since the glass structures frozen-in under elevated pressure may give rise to properties unattainable under ambient pressure. Chemical strengthening of glass through K+-for-Na+ ion exchange is currently receiving significant interest due to the increasing demand for stronger and more damage resistant glasses. However, the interplay among isostatic compression, pressure-induced changes in alkali diffusivity, compressive stress generated through ion exchange, and the resulting mechanical properties are poorly understood. In this work, we employ a specially designed gas pressure chamber to compress bulk glass samples isostatically up to 1 GPa at elevated temperature before or after the ion exchange treatment of an industrial sodium-magnesium aluminosilicate glass. Compression of the samples prior to ion exchange leads to a decreased Na+-K+ inter-diffusivity, increased compressive stress, and slightly increased hardness. Compression after the ion exchange treatment changes the shape of the potassium-sodium diffusion profiles and significantly increases glass hardness. We discuss these results in terms of the underlying structural changes in network-modifier environments and overall network densification.

AB - Glass exhibits a significant change in microstructure and properties when subjected to high pressure, since the short- and intermediate-range structures of a glass are tunable through compression. Understanding the link between the microscopic structure and macroscopic properties of glasses under high pressure is important, since the glass structures frozen-in under elevated pressure may give rise to properties unattainable under ambient pressure. Chemical strengthening of glass through K+-for-Na+ ion exchange is currently receiving significant interest due to the increasing demand for stronger and more damage resistant glasses. However, the interplay among isostatic compression, pressure-induced changes in alkali diffusivity, compressive stress generated through ion exchange, and the resulting mechanical properties are poorly understood. In this work, we employ a specially designed gas pressure chamber to compress bulk glass samples isostatically up to 1 GPa at elevated temperature before or after the ion exchange treatment of an industrial sodium-magnesium aluminosilicate glass. Compression of the samples prior to ion exchange leads to a decreased Na+-K+ inter-diffusivity, increased compressive stress, and slightly increased hardness. Compression after the ion exchange treatment changes the shape of the potassium-sodium diffusion profiles and significantly increases glass hardness. We discuss these results in terms of the underlying structural changes in network-modifier environments and overall network densification.

M3 - Conference abstract for conference

ER -

Svenson MN, Thirion LM, Youngman RE, Mauro JC, Rzoska SJ, Bockowski M et al. Pressure-Induced Changes in Inter-Diffusivity and Compressive Stress in Chemically Strengthened Glass. 2014. Abstract fra 2014 MRS Fall Meeting, Boston, USA.