Grain-⟨111⟩-oriented anisotropy in the bonded giant magnetostrictive material
Grain-⟨111⟩-oriented anisotropy in the bonded giant magnetostrictive material
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DOI：
10.1063/1.3350891
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发表时间：
2010-03
影响因子：
4
通讯作者：
Hao Meng;Tian-Li Zhang;Chengbao Jiang;Huibin Xu
中科院分区：
文献类型：
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作者：
Hao Meng;Tian-Li Zhang;Chengbao Jiang;Huibin Xu
通过在中等磁场下固化环氧树脂，沿着 TbDyFe/环氧树脂粘合的超磁致伸缩棒的轴产生强的 ⟨111⟩ 择优取向。 TbDyFe 颗粒尺寸分布为 200–300 μm，在环氧树脂基体中排列，呈现近似链状结构。在17 MPa的预应力下，纵向磁致伸缩λ∥高达1360×10−6，由于晶粒⟨111⟩取向各向异性而实现了高磁致伸缩性能。
A strong ⟨111⟩ preferred orientation is induced along the axis of the TbDyFe/epoxy bonded giant magnetostrictive rods by curing the epoxy under a moderate magnetic field. TbDyFe particles with a size distribution of 200–300 μm align in an epoxy matrix, showing an approximate chain structure. A high magnetostrictive performance resulting from the grain-⟨111⟩-oriented anisotropy is achieved with the longitudinal magnetostriction λ∥ up to 1360×10−6 under the prestress of 17 MPa.