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On the structure and properties of hydrothermally toughened soda–lime silicate float glass.

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Title: On the structure and properties of hydrothermally toughened soda–lime silicate float glass.
Authors: Sorarù, Gian Domenico1 (AUTHOR) giandomenico.soraru@unitn.it, Mariazzi, Sebastiano2 (AUTHOR), Barozzi, Mario3 (AUTHOR), Canteri, Roberto3 (AUTHOR), Cassetta, Michele1,4 (AUTHOR), Pellegrini, Damiano1 (AUTHOR), Daldosso, Nicola4 (AUTHOR), Brusa, Roberto Sennen2 (AUTHOR), Biesuz, Mattia1,5 (AUTHOR) mattia.biesuz@unitn.it
Source: Journal of the American Ceramic Society. Aug2024, Vol. 107 Issue 8, p5383-5399. 17p.
Subjects: Surface diffusion, Secondary ion mass spectrometry, Diffusion kinetics, Doppler broadening, Ion exchange (Chemistry), Crystal glass
Abstract: Hydrothermal treatments of soda–lime silicate glass cause a remarkable improvement in the resistance to flaw formation with an increase of the critical load to ≈1 kgf. This remarkable effect is achieved even if the reaction layer between the glass and water solution is well below 1 µm. Positron Doppler broadening spectroscopy (DBS) reveals that the hydrothermal treatment causes a drop in the free volume of the glass network near the surface connected with the diffusion of molecular water whose presence was further confirmed by Fourier transformed infrared (FTIR) spectroscopy and secondary ion mass spectrometry (SIMS). Based on FTIR and SIMS, we also argue that the hydrothermal ion exchange is a double‐step process: first H+ substitutes Na+ in the network, and following molecular water permeates the system. Moreover, we show that the presence of water in the network is fundamental in stabilizing the modified glass surface leading to toughening. Once molecular water is released, the network is quickly polymerized and becomes more brittle. Hydrothermal toughening is only a partially reversible process, once water is released it is not possible to reobtain the same properties with a second treatment. Finally, it is shown that air and tin side of the float glass perform differently as a result of different water diffusion kinetics related to dissimilarities in the network density. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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PubTypeId: academicJournal
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  Data: On the structure and properties of hydrothermally toughened soda–lime silicate float glass.
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  Data: <searchLink fieldCode="AR" term="%22Sorarù%2C+Gian+Domenico%22">Sorarù, Gian Domenico</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> giandomenico.soraru@unitn.it</i><br /><searchLink fieldCode="AR" term="%22Mariazzi%2C+Sebastiano%22">Mariazzi, Sebastiano</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Barozzi%2C+Mario%22">Barozzi, Mario</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Canteri%2C+Roberto%22">Canteri, Roberto</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cassetta%2C+Michele%22">Cassetta, Michele</searchLink><relatesTo>1,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pellegrini%2C+Damiano%22">Pellegrini, Damiano</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Daldosso%2C+Nicola%22">Daldosso, Nicola</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Brusa%2C+Roberto+Sennen%22">Brusa, Roberto Sennen</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Biesuz%2C+Mattia%22">Biesuz, Mattia</searchLink><relatesTo>1,5</relatesTo> (AUTHOR)<i> mattia.biesuz@unitn.it</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Ceramic+Society%22">Journal of the American Ceramic Society</searchLink>. Aug2024, Vol. 107 Issue 8, p5383-5399. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Surface+diffusion%22">Surface diffusion</searchLink><br /><searchLink fieldCode="DE" term="%22Secondary+ion+mass+spectrometry%22">Secondary ion mass spectrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Diffusion+kinetics%22">Diffusion kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Doppler+broadening%22">Doppler broadening</searchLink><br /><searchLink fieldCode="DE" term="%22Ion+exchange+%28Chemistry%29%22">Ion exchange (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+glass%22">Crystal glass</searchLink>
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  Data: Hydrothermal treatments of soda–lime silicate glass cause a remarkable improvement in the resistance to flaw formation with an increase of the critical load to ≈1 kgf. This remarkable effect is achieved even if the reaction layer between the glass and water solution is well below 1 µm. Positron Doppler broadening spectroscopy (DBS) reveals that the hydrothermal treatment causes a drop in the free volume of the glass network near the surface connected with the diffusion of molecular water whose presence was further confirmed by Fourier transformed infrared (FTIR) spectroscopy and secondary ion mass spectrometry (SIMS). Based on FTIR and SIMS, we also argue that the hydrothermal ion exchange is a double‐step process: first H+ substitutes Na+ in the network, and following molecular water permeates the system. Moreover, we show that the presence of water in the network is fundamental in stabilizing the modified glass surface leading to toughening. Once molecular water is released, the network is quickly polymerized and becomes more brittle. Hydrothermal toughening is only a partially reversible process, once water is released it is not possible to reobtain the same properties with a second treatment. Finally, it is shown that air and tin side of the float glass perform differently as a result of different water diffusion kinetics related to dissimilarities in the network density. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/jace.19832
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        Text: English
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        PageCount: 17
        StartPage: 5383
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      – SubjectFull: Surface diffusion
        Type: general
      – SubjectFull: Secondary ion mass spectrometry
        Type: general
      – SubjectFull: Diffusion kinetics
        Type: general
      – SubjectFull: Doppler broadening
        Type: general
      – SubjectFull: Ion exchange (Chemistry)
        Type: general
      – SubjectFull: Crystal glass
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              M: 08
              Text: Aug2024
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              Y: 2024
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