Structure and mechanical response of chemically strengthened aluminosilicate glass under different post-annealing conditions

Wang, Minbo; Jiang, Liangbao; Li, Xiaoyu; Liu, Jiaxi; Li, Jiaming

doi:10.1016/j.jnoncrysol.2020.120620

Cited by 13 publications

(3 citation statements)

References 61 publications

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“…The decrease in hardness on the tin side was less than that on the air side in the raw and ion-exchanged glasses from Figure 3 , indicating a stronger resistance to hydration of the tin side. This result is in accordance with previous work [ 4 , 38 ]. The presence of tin ions at the tin side and surface hydration intrinsically change the near-surface structure, as does surface hydration.…”

Section: Discussionsupporting

confidence: 94%

Insight into the Interaction between Water and Ion-Exchanged Aluminosilicate Glass by Nanoindentation

Jiang

Liu

et al. 2021

Materials

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This work aims to explore the interaction between water and ion-exchanged aluminosilicate glass. The surface mechanical properties of ion-exchanged glasses after different hydration durations are investigated. The compressive stress and depth of stress layer are determined with a surface stress meter on the basis of photo-elasticity theory. The hardness and Young’s modulus are tested through nanoindentation. Infrared spectroscopy is used to determine the variation in surface structures of the glass samples. The results show that hydration has obvious effects on the hardness and Young’s modulus of the raw and ion-exchanged glasses. The hardness and Young’s modulus decrease to different extents after different hydration times, and the Young’s modulus shows some recovery with the prolonging of hydration time. The ion-exchanged glasses are more resistant to hydration. The tin side is more resistant to hydration than the air side. The results are expected to serve as reference for better understanding the hydration process of ion-exchanged glass.

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Section: Discussionsupporting

confidence: 94%

Insight into the Interaction between Water and Ion-Exchanged Aluminosilicate Glass by Nanoindentation

Jiang

Liu

et al. 2021

Materials

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“…However, in those with HEC treatment (B-series), the Weibull modulus increased after strengthening. The Weibull modulus is the slope of the Weibull distribution graph, which indicates the reliability [19][20][21]. Regardless of whether chemical strengthening or HEC was applied, the Weibull coefficients all exceeded one.…”

Section: R Peer Reviewmentioning

confidence: 99%

Weibull Reliability and Mechanical Properties of Chemical Strengthening Lightweight Glass Containers Using Spray Coating

et al. 2022

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In this study, the effects of heat-treatment temperature and hot-end coating (HEC) by spray coating on the mechanical properties and reliability of lightweight glass bottles were investigated. When the chemical strengthening occurred at Tg, the hardness and impact strength increased by 163% and 198%, respectively. All specimens exhibited improved mechanical properties with chemical strengthening, regardless of the HEC. The strengthening effect was relatively large in the absence of HEC. However, the distribution of the impact strength was smaller when HEC was applied. Compared to non-HEC bottles, HEC glass bottles had higher Weibull modulus values after chemical strengthening, which increased their reliability. Therefore, it is possible to chemically strengthen a lightweight glass bottle by spray-coating. Chemically strengthened lightweight glass bottles with excellent mechanical properties and high reliability can be produced when both HEC and chemical strengthening are applied.

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“…The glass breakage resistance strength was evaluated by using typical methods such as 3 or 4 Points Bending test (3PB,4PB), Ring On Ring (ROR), Glass Impact Test (GIT), Ball Drop and sandpaper drop evaluation method. [3][4][5][6][7][8][9][10][11][12][13] However, the effect of the surface defects on surface is inevitable on fracture mechanism that it is hard to determine which method is the optimal. [4,7] Therefore, we suggest a evaluation method that can identify a significant differences on drop breakage resistance between the glasses with different compositions.…”

Section: Introductionmentioning

confidence: 99%

14‐3: Drop Resistance Optimization Through Post‐Hoc Analysis of Chemically Strengthened Glass

Baek,

An,

Kuk

et al. 2023

Symp Digest of Tech Papers

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In the market of the mobile cover glass, the development of chemically strengthened glass is focused on the drop resistance improvement. The cover glass which protects the display panel is a typical brittle material that the micro cracks tends to be occurred underneath a glass surface by physical impacts. The micro cracks tends to be propagated by tensile stress and it is known as a general procedures on glass breakage. In purpose of the cover glass strength improvement, compressive stress is applied to the glass surface using chemical strengthening method by ion exchange. However, since the central area of the glass is relatively subjected to tensile stress, the glass is instantly broken when the propagated cracks are reached on the tensile stress exerted area. The glass specifications have been managed for maintaining the strength using parameters of compressive stress (CS), depth of compression (DOC), and central tension (CT). However, there was no method to judge the most effective factor for impact drop resistance. In order to solve this problem, we developed a machine learning program for cover glass that can predict the breakage height based on stress and mapped evaluation data based on the measured stress profile data and the actual drop breakage simulated evaluation. Especially, eXplainable AI (XAI) method is used to identify the effective factors on drop breakage height. And the test and measurement data were applied to various chemically strengthened glass for analysis.In this study, it was possible to predict the drop breakage height only by measuring the stress profile of chemically strengthened glass. The feature value of chemically strengthened that has the most effect on the drop breakage resistance on rough surfaces was identified to be stress value at 30um in the case of alkali aluminosilicate glass. And it was proved that the drop breakage height was improved by 25% only by increasing the compressive stress at 30um depth.

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Structure and mechanical response of chemically strengthened aluminosilicate glass under different post-annealing conditions

Cited by 13 publications

References 61 publications

Insight into the Interaction between Water and Ion-Exchanged Aluminosilicate Glass by Nanoindentation

Insight into the Interaction between Water and Ion-Exchanged Aluminosilicate Glass by Nanoindentation

Weibull Reliability and Mechanical Properties of Chemical Strengthening Lightweight Glass Containers Using Spray Coating

14‐3: Drop Resistance Optimization Through Post‐Hoc Analysis of Chemically Strengthened Glass

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