Phase Change of the Indium Rich Alloys

Abstract

The stability of a f.c.c. phase and two f.c.t. phases, one has the axial ratio more than unity and the other less than unity, of In–Cd, In–Sn, In–Hg and In–Pb are discussed. On the basis of the nearly free electron model, the internal energies for these phases are calculated. The phase which has the least internal energy in any electron/atom region can actually exist. The calculated regions of these phases agree comparatively well with the actual phase diagram.
A reasonable explanation on the change in the transport properties at the phase boundaries is also given by the model.