Magnetomechanical hydraulic-servo apparatus for investigation of magnetomechanical coupling properties of magnetic materials

Magnetomechanical hydraulic-servo apparatus for investigation of magnetomechanical coupling properties of magnetic materials
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用于研究磁性材料磁力耦合特性的磁力液压伺服装置

DOI:
10.1063/1.2234854
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发表时间:
2006-08
影响因子:
1.6
通讯作者:
--
中科院分区:
工程技术4区
文献类型:
--
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构建了一种用于进行磁力实验的装置,可以研究在耦合单轴应力和磁场作用下磁性材料的物理和机械性能。该装置将液压驱动的机械加载系统与偶极电磁铁相结合,能够产生高达2000kg的机械力和高达2.4T的磁场,磁极间隙为100mm。由于机械加载装置可以在极隙中旋转,因此可以以与磁场任意角度施加机械力。该装置允许在磁场和机械力的在线计算机控制下自动测量磁力参数。作为一个例子,提出了在 Tb0.3Dy0.7Fe1.95 样品的杆轴上施加的各种固定压缩预应力下同时测量磁致伸缩和磁化强度。
An apparatus for carrying out magnetomechanical experiments has been constructed, which allows investigations of the physical and mechanical properties of magnetic materials under the application of coupled uniaxial stress and magnetic fields. The apparatus combines a hydraulically driven mechanical loading system with a dipole electromagnet, which is capable of producing mechanical forces up to 2000kg and magnetic fields up to 2.4T with a pole gap of 100mm. And the mechanical force can be applied in any angle with the magnetic field because the mechanical loading device can be rotated in the pole gap. The apparatus allows the automatic measurement of magnetomechanical parameters under on-line computer control of both the magnetic field and the mechanical force. As an example, the simultaneous measurement of magnetostriction and magnetization at various fixed compressive pre stresses applied in the rod axial axis for Tb0.3Dy0.7Fe1.95 samples are presented.
DOI: 10.1063/1.1599072
发表时间: 2003-08
影响因子: 1.6
作者:
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通讯作者: T. Shield
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影响因子: 1.6
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