In the present research, the primary crystallization kinetics of the amorphous Fe85.3B11P3Cu0.7 alloy was analyzed using non-isothermal DSC measurements. The average and local activation energies, Ea, were determined by different isokinetic and isoconversional methods. The results obtained for activation energy in this research, show that due to the complexity of the primary crystallization pro...

Abstract The complex crystallization behavior of the Zr 40 Ti 15 Cu 10 Ni Be 25 bulk metallic glass (BMG) produced by suction-casting method was studied with non-isothermal DSC measurements heating rate from 5 to K/min. Three exothermic phenomena were observed for investigated material. novel evaluation procedure qualitative and quantitative analysis intricate kinetics Zr-based BMGs is proposed...

The kinetics of the pressure induced hydration of modellipid membranes is studied in terms ofthe Avrami-Kolmogorov model and the fractal-like chemical reaction kinetics concept. As a general result, the stretched exponential relaxation function of the

Phase behavior of distearoylphosphatidylethanolamine dispersed in excess glycerol has been examined by differential scanning calorimetry. Transformation from lamellar-gel to lamellar crystalline phase was found to take place at temperatures near 74.9 degrees C upon cooling and near 76.3 degrees C during heating scans. The transition can also be observed under isothermal conditions at temperatur...

Multicomponent Fe65.5Cr4Mo4Ga4P12C5B5.5 amorphous alloy is known to have good soft magnetic properties combined with large glass-forming ability. Searching for a nanocrystalline structure that could improve its magnetic properties, Cr and Mo were partially substituted by Cu. The devitrification process of Cu-containing alloys shows an additional broad crystallization event that can be described...

Fe-based metallic glass has wide industrial application due to its unique mechanical behavior and magnetic properties. In the present work, non-isothermal crystallization kinetics in Fe68Nb6B23Mo3 glassy alloys were investigated by differential scanning calorimeter (DSC). The results indicate that both transformation process display an obvious kinetic effect. activation energy is calculated usi...

We study the Kolmogorov-Johnson-Mehl-Avrami theory of phase conversion in finite volumes. For the conversion time we find the relationship tau(con)=tau(nu)[1+f(d)(q)]. Here d is the space dimension, tau(nu) the nucleation time in the volume V, and f(d)(q) a scaling function. Its dimensionless argument is q=tau(ex)/tau(nu), where tau(ex) is an expansion time, defined to be proportional to the di...