Float aluminosilicate glass from a single original commercial sheet 0.7 mm thick which was cut in 120 × 60 mm slides by straight cutter , were used in this work. The composition of the glass (in wt.%) is: 71.2% SiO2, 13% Na2O, 0.8% K2O, 9% CaO, 4.5% MgO, 1% Al2O3, and 0.5% trace elements. Ion exchange was performed by immersing the glass into molten pure KNO3 in a small automatic furnace at 450 °C for 8 h. Then samples were washed with ethanol and acetone in an ultrasonic cleaning system respectively, and dried in the end.