Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10156444 | Journal of Magnetism and Magnetic Materials | 2019 | 12 Pages |
Abstract
Light-rare-earth-based Pr(Fe1-xSix)1.93 alloys (0⩽x⩽0.1) with pure cubic Laves phase were synthesized by high-pressure annealing method. Si substitution effects on magnetic, electrical and magnetostrictive properties of light-rare-earth-based Pr(Fe1-xSix)1.93 alloys were systematically investigated. It was found that the lattice parameter a and Curie temperature TC of the cubic Laves phase in the alloys increase with the increasing Si content up to x=0.05, which might be ascribed to the preferential occupation of Si in the Laves phase interstitial sites. The magnetization at the maximum available field of 15 kOe, Ï15k, decreases monotonically with the increasing x. A significant increase of 67% in electrical resistivity was observed in Pr(Fe0.9Si0.1)1.93 alloy at room temperature. The magnetostriction at the field of 3 kOe of Pr(Fe0.95Si0.05)1.93 is about 542â¯ppm, which is even larger than the saturation magnetostriction of heavy-rare-earth-based Tb0.2Dy0.22Ho0.58Fe2 single crystal (λsâ¯=â¯530â¯ppm). The attractive price, lower eddy current loss, together with high magnetostrictive response suggest that the Pr(Fe0.95Si0.05)1.93 alloy might be a good candidate material for the potential magnetostrictive applications.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Z. Zhang, W.J. Lu, S.Z. Dong, H.R. Bai, T.N. Yang, D.H. Wei, J.J. Ni, W. Li, C.C. Hu, Y.G. Shi, H.Y. Li, J.G. Hao, P. Fu, W.F. Rao,