Measurement of an Iso-curie temperature line of a Co-Cr-Mo solid solution by magnetic force microscopy imaging on a diffusion multiple

Abstract

The 24 °C iso-Curie temperature line of a Co-Cr-Mo fcc solid solution is obtained by performing magnetic force microscopy (MFM) imaging on solid solution compositions created in a diffusion multiple. The MFM imaging clearly reveals the boundary that separates the paramagnetic region without magnetic domains from the ferromagnetic region with domains. Compositional analysis along the boundary yields a constant Curie temperature (24 °C) composition line. Such a measurement is more efficient than one-alloy-at-a-time tests and can be used to screen new ferromagnetic materials. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.