Magnetostrictive Properties of Mn0.70Zn0.24Fe2.06O₄ Ferrite

Adam Bieńkowski; Roman Szewczyk

doi:10.3390/ma11101894

Magnetostrictive Properties of Mn_0.70Zn_0.24Fe_2.06O₄ Ferrite

Materials (Basel). 2018 Oct 3;11(10):1894. doi: 10.3390/ma11101894.

Authors

Adam Bieńkowski¹, Roman Szewczyk²

Affiliations

¹ Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, 02-525 Warsaw, Poland. a.bienkowski@mchtr.pw.edu.pl.
² Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, 02-525 Warsaw, Poland. szewczyk@mchtr.pw.edu.pl.

Abstract

This paper presents the results of measurements of magnetostrictive properties of Mn_0.70Zn_0.24Fe_2.06O₄ ferrite for power applications. Frame-shaped samples were used for measurements to guarantee a uniform magnetizing field and magnetostrictive strain distribution. Magnetostrictive hysteresis loops were measured by semiconductor strain gauges. The results indicate that the magnetostrictive characteristic of Mn_0.70Zn_0.24Fe_2.06O₄ ferrite is non-monotonic and magnetostriction changes have opposite signs for higher values of the magnetizing field.

Keywords: Mn-Zn ferrites; magnetostriction; power ferrites.