Characterization of Near Surface Mechanical Properties of Ion-Exchanged Glasses Using Surface Brillouin Spectroscopy

A study on ion‐exchanged, soda‐lime glass’s residual stress relationship with K+/Na+ concentration

“…Regretfully, the relationship between D and T was not fully established in the work of Sane and Cooper, hence in this work an approximate, working relationship was obtained from a broad literature survey. 4,22,30,[32][33][34]39 Although Equation (19) fitted the available data reasonably well as shown in Figure 1, the use of "typical" values of D in the calculations was expected to introduce some systematic errors in the analysis.…”

“…Although ,, and were assumed constant, was a function of . Assuming both E and as approximately constants (ie, E = 65.1 Gpa, ), then B ( α ) could be easily estimated.…”

“…Shen and Green considered variations in the chemical composition of the Young's modulus using the Makishima and Meckenzie model for “as melted” glasses and determined that a reduction in the Young's modulus of approximately 10% should be experienced during the ion‐exchange of SLG. More relevant experimental results by Puentes et al using SAW waves on ion‐exchanged SLG glass, suggested that the reduction in E only amounted to approximately 2.9%. Similarly, Kreski compared the elastic moduli and Poisson's ratios of SLG ‘host’ and ‘stuffed’ glasses obtained thorough MD simulations and found that, after the K + ion‐exchange, E decreased by 1.6% whereas ν was nearly unaffected.…”