首页|Giant magnetostriction in TbDyFe/epoxy composites with spherical single-crystal particles

Giant magnetostriction in TbDyFe/epoxy composites with spherical single-crystal particles

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  • NSTL
  • Elsevier
? 2022 Elsevier B.V.We report on the preparation of spherical TbDyFe single-crystal particles as well as the giant magnetostriction of composite materials made from these particles. Spherical single-crystals with diameters ranging from 50 to 200 micrometers were fabricated through the low wettability effects between solid-liquid interfaces. Facilitated by those sphere-shaped crystals, a high particle-to-epoxy ratio and a high uniformity of particle orientation was realized in the composite. As the result, highly< 111 > -orientated TbDyFe/epoxy resin composites with a particulate volume fraction of 55% were designed. The magnetostriction of the composite is as high as 1820 ppm at a compressive preload of 10 MPa, which is comparable to 1400–1800 ppm of commercial monolithic Terfenol-D. The present work path a novel way to develop high-performance magnetostrictive composite materials.

Single-crystalSpherical particlesTb-Dy-Fe composites

Dong D.、Qian J.、Huang Y.、Tang S.、Du Y.、Shi Y.

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Jiangsu Key Laboratory for Nanotechnology Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State Microstructures Department of Physics Nanjing University

Department of Applied Physics Key Laboratory of Aerospace Information Materials and Physics (MIIT) Nanjing University of Aeronautics and Astronautics

2022

10.1016/j.jallcom.2022.165558

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
年,卷(期)：2022.917
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