Formation kinetics of Ni–15% Fe–5% Mo during ball milling

Kinetics analysis of mechano-chemically and thermally synthesized Cu by Johnson–Mehl–Avrami model

“…Large values of K imply rapid transformations. The values of n and K provide a clue to the type of reaction mechanisms which dominate during the reaction and also show how fast these mechanisms work [12]. For analyzing the results, Eq.…”

“…Many research works have been carried out on mechanical alloying and mechanical activation kinetics and the way which mechanical energy affects the reaction rate. There are studies on the kinetics of thermal decomposition of mechanically activated compounds [2,4,5], chemical leaching of mechanically activated minerals [6][7][8] and formation of solid solution and/or amorphous alloys by mechanical alloying, and crystallization of the as-milled amorphous powders [9][10][11][12][13][14]. However, the activation energies and mechanisms of displacement reactions as a function of milling time need more investigation.…”

Formation of ball-milled Fe–Mo nanostructured powders

“…Johnson-Mehl-Avrami (JMA) equation has been commonly used to describe the kinetics of the volume fraction transformed [14][15][16][17][18][19][20]. Thus, it has been widely used to study the nucleation and growth kinetics of a second phase from an initial one.…”

Thermal Stability of the Nanostructured Powder Mixtures Prepared by Mechanical Alloying

“…Bigot et al have obtained a value of n = 1.5 for the nanocrystallization of the Finemet [68]. Comparable kinetics parameters have been obtained in the Ni-15Fe-5Mo (n = 1.049 and k = 0.57) [69]. The important fraction of structural defects which is introduced during the milling process favours the phase formation through the diffusion at the surface which is dominant, at lower temperatures, in comparison to the diffusion by the grain boundaries and the lattice parameter (vacancy's diffusion).…”