Wang Xin, Chan Kang-Cheung, Zhao Lei, Ding Ding, Xia Lei
College of Engineering, Shanghai Polytechnic University, Shanghai 201209, China.
Advanced Manufacturing Technology Research Centre, Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.
Materials (Basel). 2021 Jun 4;14(11):3068. doi: 10.3390/ma14113068.
In the present work, the microstructure and its effect on the magnetic, magnetocaloric, and magnetoelastic properties of the TbCoFe melt-spun ribbon were investigated. The ribbon exhibits typical amorphous characteristics in its X-ray diffraction examination and differential scanning calorimetry measurement. However, the magnetic properties of the ribbon indicate that the ribbon is inhomogeneous in the nanoscale, as ascertained by a high-resolution electron microscope. Compared to the TbCo amorphous alloy, the TbCoFe ribbon shows poor magnetocaloric properties but outstanding magnetostriction. A rather high value of reversible magnetostriction up to 788 ppm under 5 T was obtained. The mechanism for the formation of nanoparticles and its effect on the magnetocaloric and magnetostrictive properties were investigated.
在本工作中，研究了TbCoFe熔纺带材的微观结构及其对磁性、磁热性能和磁弹性性能的影响。该带材在X射线衍射检测和差示扫描量热法测量中表现出典型的非晶态特征。然而，该带材的磁性表明，通过高分辨率电子显微镜确定，该带材在纳米尺度上是不均匀的。与TbCo非晶合金相比，TbCoFe带材的磁热性能较差，但磁致伸缩性能优异。在5 T下获得了高达788 ppm的相当高的可逆磁致伸缩值。研究了纳米颗粒的形成机制及其对磁热性能和磁致伸缩性能的影响。
