Effect of Average Bond Energy of Network Formers on Mechanical Properties of Chemically Strengthened Typical Cover Glass
The effects of the average bond strength of the network formers,varying through the replace of SiO2 by A12O3 and/or ZrO2,in a typical cover silicate glass on the stress,bending resistance and impact resistance of the glass after chemical strengthening were discussed,and the influence mechanism was analyzed.The results show that with the increase of A12O3 and/or ZrO2,the average bond strength of the glass network formers decreases,and the migration of Na+and K+in the glass structure is easier.Therefore,under the same chemical strengthening process,the ion exchange depth of the glass increases,and the surface compressive stress decreases.However,the resultant compressive force generated inside the glass after chemical strengthening increases with the decrease of the average bond strength of the network formers,resulting in the enhanced bending resistance and impact resistance.The results of this paper are of great significance to adjust the mechanical properties of chemically strengthened glass by tune the average bond strength of network formers in the batches.
NETL
NSTL
万方数据
维普
