Kinetic study on the non-isothermal crystallization of Gd53Al24Co20Zr3 bulk metallic glass

Effect of Ho Addition on the Glass-Forming Ability and Crystallization Behaviors of Zr54Cu29Al10Ni7 Bulk Metallic Glass

“…The mean activation energy for Zr54 and Zr48Ho6 BMGs during the whole crystallization process are 366.43 kJ/mol and 332.33 kJ/mol, respectively, less than the values calculated by the Kissinger and Ozawa equations. Similar results are reported in the crystallization behaviors of some other metallic glasses [ 38 , 39 , 40 ]. Comparing with Zr54 BMG, E c ( x ) for Zr48Ho6 is smaller in the original period and larger in the second half process, implying an easier nucleation and more difficult development.…”

“…The local activation energy against crystallized fraction x , E c ( x ), was proposed to evaluate the whole crystallization process. It can be calculated by the Doyle–Ozawa isoconversional equation (seen in Equation (3)) [ 38 , 39 ]. The results are displayed in Figure 6 and show two quite different tendencies of E c ( x ) for two BMGs.…”

Vapor-Deposited Thin Films: Studying Crystallization and α-relaxation Dynamics of the Molecular Drug Celecoxib

“…In Figure , we show the rate of crystallization which decreases with decreasing the film thickness of the vapor-deposited CXB films. Considering the Avrami parameter, irrespective of the film thickness, the value is between 0 and 1, which points to surface crystallization in one dimension . Also, the value of the Avrami constant obtained for the confined films appears to be less compared to the bulk.…”

“…Considering the Avrami parameter, irrespective of the film thickness, the value is between 0 and 1, which points to surface crystallization in one dimension. 59 Also, the value of the Avrami constant obtained for the confined films appears to be less compared to the bulk. The theoretical predictions based on the isothermal crystallization of spherical entities in the limited volume suggest slower crystallization kinetics and a decrease in the Avrami exponent with decreasing thickness, 60 which is well in agreement with the computer simulations as well as numerous experimental results discussing the crystallization of polymer thin films.…”