Kinetics of Mg2Sn synthesis reaction under isothermal condition

The kinetics of Mg2Sn synthesis reaction was studied under isothermal condition in the present paper. Results indicated that the isothermal reaction of Mg2Sn was controlled by two reactive mechanisms: the nucleation and growth control in the first stage corresponding to the Avrami exponent, m≈3, and the phase boundary control in the second stage corresponding to m≈1.1. The reactive activation energy (Ea) for the two stages was 293.6 kJ·mol^-1 and 358.1 kJ·mol ^-1, respectively. The microstructural evolution in Mg2Sn synthesis process was in good agreement with the two reactive mechanisms.

Duke Scholars

Author Zhaohui Wang Pathology