Correlation between K+-Na+ diffusion coefficient and flexural strength of chemically tempered aluminosilicate glass
Author(s)
Type
Journal Article
Abstract
The correlation between K+-Na+ diffusion coefficient and mechanical properties of chemically tempered and hybridly tempered (thermally plus chemically tempered) aluminosilicate glass is investigated. First, the profile of the potassium ion concentration is experimentally measured, and the diffusion coefficient is calculated according to the Boltzmann-Matano approach. Second, the flexural strength and the Weibull modulus are determined using a method combining experimental (coaxial double ring) and finite element analysis. The results indicate that the flexural strength decreases with the diffusion coefficient of the air side for both types of glass samples, while there is no significant relationship between the diffusion coefficient and the Weibull modulus. The diffusion coefficient on the air side shows a higher value than that on the tin side. With the same diffusion coefficient, the flexural strength of chemically tempered glasses is found to be higher than that of hybridly tempered glasses. The effect of the diffusion coefficient on the modulus of rupture (MOR) for the hybridly tempered glass is more remarkable. These results would be useful for designing the glass strength and guiding the strengthening process by chemical or hybrid tempering.
Date Issued
2017-05-22
Date Acceptance
2017-05-10
Citation
Journal of Non-Crystalline Solids, 2017, 471, pp.72-81
ISSN
1873-4812
Publisher
Elsevier
Start Page
72
End Page
81
Journal / Book Title
Journal of Non-Crystalline Solids
Volume
471
Copyright Statement
© 2017 Elsevier B.V. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor
Beijing Institute of Aeronautical Materials (BIAM)
Grant Number
N/A
Subjects
Science & Technology
Technology
Materials Science, Ceramics
Materials Science, Multidisciplinary
Materials Science
Diffusion coefficient
Flexural strength
Chemically tempered glass
Hybridly tempered glass
ION-EXCHANGED GLASSES
SILICA FLOAT GLASS
WEIBULL ANALYSIS
STRESS PROFILES
KINETICS
SURFACE
INDENTATION
CRACKING
HARDNESS
WATER
0912 Materials Engineering
Applied Physics
Publication Status
Published