B2 O3 anomaly effect on crystallization and mechanical properties of soda-lime silicate glasses

In the present investigation, the effect of B 2 O 3 is investigated on the theoretical mechanical properties and crystallization kinetics of (64-x) SiO 2 - x B 2 O 3 - 16 Na 2 O - 12 CaO - 2 Al 2 O 3 - 6 MgO (x = 2, 4, and 6 mol%) glasses. To understand the mechanical properties elastic moduli are calculated using two theoretical models i.e., Makishima-Mackenzie and Rocherulle. Whereas, in crystallization kinetics, activation energies ( E g , E ,, and E p ) are computed using two distinct methods, i.e., the Kissinger model and the Augis and Bennett model. The replacement of SiO 2 by B 2 O 3 enhances the strengthening of the glass network which makes the B6 -S58 glass network more rigid. The B6 -S58 and B2 -S62 glasses have the highest and lowest activation energy ( E g ) for crystallization, respectively. B4 -S60 glass shows non-linear behavior in characteristics temperature as well as in activation energy due to boron anomaly. The present finding could be helpful in designing windshield automobile glasses.