Volume size factor and lattice parameter in cubic intermetallics with the L1(2) structure

Lattice parameters of binary ordered Lit intermetallic compounds have been calculated using partial molar volumes of the individual elements in the disordered solid solutions. The calculations have been performed using the volume size factor of the solute atom and the molar volume of the solvent atom. It has been observed that this approach results in excellent agreement between calculated and experimental values. The approach has been successfully extended to the prediction of lattice parameters of ordered ternary Ll(2) compounds. (C) 1996 Elsevier Science Limited.