Mechanical characteristics of doped soda-lime silica glass

Abstract

The aim of the work described was to investigate the effect of the glass microstructure, changed during chemical and thermal treatments, upon the micro-hardness and microcracking of the exchanged specimens. Commercially available soda-lime silicate glass samples have been doped with copper. After ion-exchange, some of the specimens were annealed in the hydrogen atmosphere. Transmission electron microscopy, the XRD and electron diffraction techniques were used to characterize the microstructure of the glass-composites. Additionally, the linear thermal expansion coefficient was measured. The detected strengthening effects have been explained by supposing the formation of copper oxide and some mixed sodium-copper silicates. The induced decrease of the thermal expansion coefficient of this layer results in the formation of strong compressive stresses.

Citation

Suszynska, M., Szmida, M. and Cizman, A. (2012), "Mechanical characteristics of doped soda-lime silica glass", World Journal of Engineering, Vol. 9 No. 2, pp. 103-108. https://doi.org/10.1260/1708-5284.9.2.103