Effects of thermal and pressure histories on the chemical strengthening of sodium aluminosilicate glass

Mouritz N. Svenson, Lynn M. Thirion, Randall E. Youngman, John Mauro, Mathieu Bauchy, Sylwester J. Rzoska, Michal Bockowski, Morten M. Smedskjaer

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Glasses can be chemically strengthened through the ion exchange process, wherein smaller ions in the glass (e.g., Na + ) are replaced by larger ions from a salt bath (e.g., K + ). This develops a compressive stress (CS) on the glass surface, which, in turn, improves the damage resistance of the glass. The magnitude and depth of the generated CS depend on the thermal and pressure histories of the glass prior to ion exchange. In this study, we investigate the ion exchange-related properties (mutual diffusivity, CS, and hardness) of a sodium aluminosilicate glass, which has been densified through annealing below the initial fictive temperature of the glass or through pressure quenching from the glass transition temperature at 1 GPa prior to ion exchange. We show that the rate of alkali interdiffusivity depends only on the density of the glass, rather than on the applied densification method. However, we also demonstrate that for a given density, the increase in CS and increase in hardness induced by ion exchange strongly depend on the densification method. Specifically, at constant density, the CS and hardness values achieved through thermal annealing are larger than those achieved through pressure quenching. These results are discussed in relation to the structural changes in the environment of the network modifiers and the overall network densification.

Original languageEnglish (US)
Article number14
JournalFrontiers in Materials
Volume3
DOIs
StatePublished - Mar 16 2016

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Aluminosilicates
Sodium
Glass
Compressive stress
Ion exchange
Densification
Hardness
Quenching
Annealing
Hot Temperature
aluminosilicate
Alkalies
Heavy ions
Salts
Ions

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)

Cite this

Svenson, M. N., Thirion, L. M., Youngman, R. E., Mauro, J., Bauchy, M., Rzoska, S. J., ... Smedskjaer, M. M. (2016). Effects of thermal and pressure histories on the chemical strengthening of sodium aluminosilicate glass. Frontiers in Materials, 3, [14]. https://doi.org/10.3389/fmats.2016.00014
Svenson, Mouritz N. ; Thirion, Lynn M. ; Youngman, Randall E. ; Mauro, John ; Bauchy, Mathieu ; Rzoska, Sylwester J. ; Bockowski, Michal ; Smedskjaer, Morten M. / Effects of thermal and pressure histories on the chemical strengthening of sodium aluminosilicate glass. In: Frontiers in Materials. 2016 ; Vol. 3.
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Svenson, MN, Thirion, LM, Youngman, RE, Mauro, J, Bauchy, M, Rzoska, SJ, Bockowski, M & Smedskjaer, MM 2016, 'Effects of thermal and pressure histories on the chemical strengthening of sodium aluminosilicate glass', Frontiers in Materials, vol. 3, 14. https://doi.org/10.3389/fmats.2016.00014

Effects of thermal and pressure histories on the chemical strengthening of sodium aluminosilicate glass. / Svenson, Mouritz N.; Thirion, Lynn M.; Youngman, Randall E.; Mauro, John; Bauchy, Mathieu; Rzoska, Sylwester J.; Bockowski, Michal; Smedskjaer, Morten M.

In: Frontiers in Materials, Vol. 3, 14, 16.03.2016.

Research output: Contribution to journalArticle

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AU - Svenson, Mouritz N.

AU - Thirion, Lynn M.

AU - Youngman, Randall E.

AU - Mauro, John

AU - Bauchy, Mathieu

AU - Rzoska, Sylwester J.

AU - Bockowski, Michal

AU - Smedskjaer, Morten M.

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Y1 - 2016/3/16

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