Kinetics of the Cubic → Hexagonal Transformation of Cadmium Sulfide

Abstract

The kinetics of cubic→hexagonal transformation of conforms to a second‐order rate equation with an activation energy of ca. 67 kcal/mol. The transformation is enhanced by the addition of of 0.001–0.1 weight ratio with little change of the activation energy. The role of the added is considered to reside, in that makes the movement and rearrangement of atoms in easy as a flux, and that the contact points of particles with provide the starting points of the further phase transformation. The mechanism of this transformation is presumed to be a linear growth process where the cubic‐hexagonal interface moves progressively along the [111] direction of the cubic form.