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<p>The aim of this study is to evaluate the chemical durability and surface stability of ion-exchanged glasses under accelerated weathering conditions. Two glass compositions, soda-lime silicate (SL) and soda-magnesia silicate (SM), were subjected to ion-exchange treatments at temperatures ranging from 425&#xa0;°C to 475&#xa0;°C for durations of 4 and 24&#xa0;h. Subsequently, the treated glasses were exposed to artificial weathering in a humidity chamber at 120&#xa0;°C and ~ 100% relative humidity for 48&#xa0;h. The compressive stress induced by ion exchange was measured using a surface stress meter, while contact angle measurements were performed to assess surface wettability, revealing a hydrophobic character. The penetration depth and variation of potassium after weathering were examined using SEM–EDS, supported by detailed chemical analysis via D-SIMS. Optical transmittance was evaluated through UV–Vis–NIR spectroscopy, and after weathering, optical imaging highlighted surface alterations. Depth profiling from EDS and D-SIMS confirmed that chemically strengthened glasses exhibit enhanced resistance to artificial weathering, making them suitable for marine applications such as yacht windows, where durability and clarity under harsh environments are critical.</p>

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Chemical durability of chemically strengthened float silicate glasses

  • 期刊论文

  • 发表日期：

    2026年2月25日

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  • Damandeep Kaur,
  • Vincenzo M. Sglavo

摘要

The aim of this study is to evaluate the chemical durability and surface stability of ion-exchanged glasses under accelerated weathering conditions. Two glass compositions, soda-lime silicate (SL) and soda-magnesia silicate (SM), were subjected to ion-exchange treatments at temperatures ranging from 425 °C to 475 °C for durations of 4 and 24 h. Subsequently, the treated glasses were exposed to artificial weathering in a humidity chamber at 120 °C and ~ 100% relative humidity for 48 h. The compressive stress induced by ion exchange was measured using a surface stress meter, while contact angle measurements were performed to assess surface wettability, revealing a hydrophobic character. The penetration depth and variation of potassium after weathering were examined using SEM–EDS, supported by detailed chemical analysis via D-SIMS. Optical transmittance was evaluated through UV–Vis–NIR spectroscopy, and after weathering, optical imaging highlighted surface alterations. Depth profiling from EDS and D-SIMS confirmed that chemically strengthened glasses exhibit enhanced resistance to artificial weathering, making them suitable for marine applications such as yacht windows, where durability and clarity under harsh environments are critical.