A comparative study of magnetostrictive strain in Pr3Fe24.75Co2.75Ti1.5-ingot and Pr3Fe24.75Co2.75Ti1.5-melt spun

Abstract

In this work, the structural and magnetic properties of ingot and melt-spun Pr3Fe24.75Co2.75Ti1.5 compounds have been investigated. The structural characterization of the compounds, by X-ray powder diffraction, is evidenced for a monoclinic Nd3(Fe,Ti)29-type structure (A2/m space group). A 2-type FOMP have been observed in the magnetic AC susceptibility curves of the ingot and melt-spun compounds. Magnetostriction and linear thermal expansion measurements have been performed by the standard strain gauge method in magnetic fields up to 1.5 T, and temperature range of 77 to 575 K. The calculated values of the ordering temperature, the room temperature saturation magnetization for the melt-spun Pr3Fe24.75Co2.75Ti1.5 compound are several times smaller than the corresponding values obtained in ingot Pr3Fe24.75Co2.75Ti1.5 compound. The above obtained results have explained the behavior of measured values of spontaneous volume, longitudinal and transverse magnetostriction.

PACS: 75.80.+q, 75.30.Gw

Keywords

References

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  • Receive Date: 02 July 2025
  • Revise Date: 04 February 2026
  • Accept Date: 02 July 2025

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