Prediction of Curie Temperatures in Ternary Fe-Co-Ni Alloys. II

Abstract
The model (for predicting Curie temperatures of ternary alloys) developed in a previous paper is extended by removing the assumption that the fraction of plus and minus spins contributed by an element in the alloy is directly proportional to the concentration of the element. Empirical data concerning the Curie temperatures of binary Co‐Ni, Fe‐Ni, and Fe‐Co alloys is again used to predict the Curie temperature of ternary fcc Fe‐Ni‐Co alloys. The predicted temperatures agree with experimental values within 30°C over the range of concentrations where the magnetic moments of the elements in the alloy do not vary with concentration (nickel concentration greater than 0.55 and the cobalt concentration greater than 0.4).