The effect of magnetic field heat treatment on magnetostriction of Terfenol-D 2-2 composites

Li, S.Y.; Wang, B.W.; Weng, Ling; Zhou, Yan; Sun, Yubao; Huang, Wenmei

doi:10.1016/j.jmmm.2007.08.027

Cited by 8 publications

(7 citation statements)

References 16 publications

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“…At present, the research aims of most literature are 0-3 magnetostrictive composites and 1-3 magnetostrictive composites. Li et al [36] proposed 2-2 magnetostrictive composites, i.e., the mixture of TD particles and epoxy resin was annealed for 15 min under a magnetic field of 240 kA/m under vacuum. The mixture was then cooled to room temperature under a magnetic field.…”

Section: Magnetostrictive Compositesmentioning

confidence: 99%

Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials

Peng

et al. 2020

Applied Sciences

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Optical fiber current sensors are widely used in the online monitoring of a new generation power system because of their high electrical insulation, wide dynamic range, and strong anti-electromagnetic interference ability. Current sensors, based on fiber Bragg grating (FBG) and giant magnetostrictive material, have the advantages of high reliability of FBG and high magnetostrictive coefficient of giant magnetostrictive material, which can meet the monitoring requirements of digital power systems. However, giant magnetostrictive materials are expensive, fragile, and difficult to mold, so giant magnetostrictive composite materials have replaced giant magnetostrictive materials as the sensitive elements of sensors. High sensitivity, high precision, wide working range, low response time, and low-cost optical fiber current sensors based on magnetostrictive composites have become a research hotspot. In this paper, the working principle of the sensor, the structure of the sensor, and the improvement of magnetostrictive composite materials are mainly discussed. At the same time, this paper points out improvements for the sensor.

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Section: Magnetostrictive Compositesmentioning

confidence: 99%

Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials

Peng

et al. 2020

Applied Sciences

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“…As calculations show, the temperature phase transition occurs only from the QU 1 -phase into the paramagnetic phase at typical values of the magnetoelastic interaction parameter of about 1.5 Oe. However, the temperature phase transition from the QU 2 -phase into the paramagnetic phase can occur in substances with giant magnetoelastic interaction, for example, in Therfenol-D, where magnetoelastic interaction reaches 150 Oe [39], or in the compounds containing the rare-earth elements, where the magnetoelastic interaction is even greater [40]. In this case, the magnetoelastic interaction breaks the symmetry of the system, which leads to the stabilization of the QU 2 -phase.…”

Section: Resultsmentioning

confidence: 99%

“…However, the increase of the magnetoelastic parameter l 2 /E results in nonzero transition temperature from the QU 2 -phase into the paramagnetic state. Such a situation can be observed, for example, in Therfenol-D, where l 2 /E reaches 150 Oe [39], and some other compounds containing the rare-earth elements [40]. The temperature T q2 must be nonzero in such materials.…”

Section: Temperature Driven Phase Transitionsmentioning

confidence: 99%

Influence of magnetic dipole and magnetoelastic interactions on the phase states of 2D non-Heisenberg ferromagnetic with complex exchange interactions

Fridman

Matunin

Klevets

et al. 2009

Journal of Magnetism and Magnetic Materials

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“…8,9 For instance, in our previous work, the magnetic field heat treatment has improved the magnetostriction of the Terfenol-D 2À2 composite by about 60% under a pre-stress of 4 MPa. 10 Therefore, it is interesting to investigate the effect of magnetic annealing on the magnetostriction and magnetization for Sm-Dy-Fe alloys.…”

Section: Introductionmentioning

confidence: 99%

The effect of magnetic annealing on the magnetostriction for Sm-Dy-Fe rod alloys

Wang

Weng

et al. 2013

Journal of Applied Physics

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The Sm0.86Dy0.14Fex (x = 1.85−2.05) magnetostrictive alloys have been prepared with arc-melting and then cast into a copper mold with a diameter of 8 mm. It is found that the magnetostriction (λ// − λ⊥) increases from −900 × 10−6 for untreated rod alloys to −1200 × 10−6 for magnetically annealed rod alloys at the magnetic field of 640 kA/m. In the magnetic annealing temperature range of 483−643 K, the magnetostriction value exhibits a peak at 543 K. The variation of magnetostriction and magnetization with magnetic fields has been determined and the mechanism of domains' movements has been discussed. This result is very important to improve the magnetostrictive property of Sm-Dy-Fe rod alloys.

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The effect of magnetic field heat treatment on magnetostriction of Terfenol-D 2-2 composites

Cited by 8 publications

References 16 publications

Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials

Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials

Influence of magnetic dipole and magnetoelastic interactions on the phase states of 2D non-Heisenberg ferromagnetic with complex exchange interactions

The effect of magnetic annealing on the magnetostriction for Sm-Dy-Fe rod alloys

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