| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1612085 | Journal of Alloys and Compounds | 2014 | 4 Pages |
•Mn75.7Pt24.3 exhibits phase transformation in the temperature range of 180–200 °C.•Both the high and low temperature phases have face-centered cubic structures.•Alloy possesses high damping capacity during phase transformation.•Mn75.7Pt24.3 has transformation strain of 0.5% with a volume change of 1.5%.•Mn75.7Pt24.3 is a promising candidate for high temperature actuator applications.
Phase transformation, damping, and magnetic properties of a Mn75.7Pt24.3 (at.%) alloy were characterized. It was observed that Mn75.7Pt24.3 exhibits a stable phase transformation in the temperature range of 180–200 °C with a small temperature hysteresis and maximum transformation strain of ∼0.5%. The crystal structures and lattice parameters of the transforming phases were determined, where both the high and low temperature phases have a face-centered cubic structure but with different lattice parameters. Finally, it was revealed that the alloy possesses high damping capacity (average Tan Delta of 0.16) during phase transformation.
