Analysis of the thermal expansivity near the tricritical point in dilute chromium alloys
KünyeYurtseven, H., Tarı İlgin, Ö. (2016). Analysis of the thermal expansivity near the tricritical point in dilute chromium alloys. 9th International Physics Conference of The Balkan Physical Union (BPU-9). AIP Conference Proceedings. 1722. 1, 080011-1-080011-4.
Chromium (Cr) undergoes a first order Neel transition as an antiferromagnetic material. When V, Mo and Mn atoms are substituted in the Cr lattice, a weak first order Neel transition in pure Cr changes toward a second order transition and a possible tricritical point in CrV occurs close to 0.2 at %V, as observed experimentally from the measurements of the thermal expansivity at various temperatures. In this study, we analyze the experimental data for the thermal expansivity from the literature as a function of temperature using the power - law formula for Cr alloys (Cr - 0.1V, 0.2V, 0.5V and Cr - 0.1Mn, Cr - 0.2Mo, 0.3Mo, 0.4Mo). Our results are interpreted near the tricritical point in dilute chromium alloys.