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2 edition of Magnetic and microstructursl properties of single-crystal Terfenol-D. found in the catalog.

Magnetic and microstructursl properties of single-crystal Terfenol-D.

Muhammed Mekki Al-Jiboory

Magnetic and microstructursl properties of single-crystal Terfenol-D.

by Muhammed Mekki Al-Jiboory

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  • 10 Currently reading

Published by University of Salford in Salford .
Written in English


Edition Notes

PhD thesis, Physics.

SeriesDX175955
ID Numbers
Open LibraryOL21682690M

Kronmüller, H. (), On the relation between the microstructure and soft and hard magnetic properties, in M. Takahashi et al (eds.), Proc. Int. Symp. on Physics of Magnetic Materials, World Scientific Publishers, Singapore, pp 17– Google ScholarAuthor: P. J. Grundy.   The material properties being investigated, measured directly or calculated from measured quantities, are: two Young's moduli, magnetomechanical coupling factor (or 'figure of merit' of the material), linear coupling coefficient or axial strain coefficient (d 33) and two magnetic permeabilities. Electrical impedance and admittance and Cited by:

  The monolithic giant magnetostrictive material used in this study was a polycrystalline Terfenol-D from TdVib LLC (Ames, Iowa, USA) with its properties shown in Table test samples were machined from a larger piece and the final form was a rectangular bar (Table 2).The specimens tested were a large specimen (TL) and a small specimen (TS) as shown in Fig. by: 1.   This option allows users to search by Publication, Volume and Page Selecting this option will search the current publication in context. Selecting this option will search all publications across the Scitation platform Selecting this option will search all publications for the Publisher/Society in contextCited by:

[] oriented single crystal had a reported modulus of 65 GPa ( Msi), a tensile strength of MPa ( ksi), and an elongation value >2%, however, fracture occurred shortly after this value of strain was reached. Compare these mechanical property values with Terfenol-D which has a Young’s Modulus of 90 GPa (13 Msi) and a tensile. Terfenol-D manufacturing techniques must meet new criteria, i.e., miniaturization and low cost, while maintaining high strain performance. 2. Experimental This work is focused on the production of millimeter disks of Terfenol-D (diameter 6 mm, thickness 1 mm) whose in-plane properties (microstructural and magnetic) were measured. FourAuthor: Valentin Issindou, B. Viala, L. Gimeno, O. Cugat, C. Rado, S. Bouat.


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Magnetic and microstructursl properties of single-crystal Terfenol-D by Muhammed Mekki Al-Jiboory Download PDF EPUB FB2

Journal of Magnetism and Magnetic Materials () North-Holland ~ of M mam Magnetostrictive and microstructural properties of Terfenol-D prepared by different routes Y.J. Bi, A.M.H. Hwang and J.S.

Abell School of Metallurgy and Materials, University of Birmingham, Birmingham 2TT, UK The effect of preparation route on the microstructural and magnetostrictive properties Cited by: 3.

title = "Magnetomechanical properties of single crystal Terfenol-D", abstract = "Quasi-static and dynamic magnetomechanical measurements have been made on a twin-free oriented single crystal of TbDyFe2 (Terfenol-D).Cited by:   Rods of the highly magnetostrictive material, Terfenol-D, TbDyFe2, have been prepared by both Bridgman and float zone techniques.

It is found that the dendritic growth front consists of parallel sheets of dendrites growing with a primary direction of and sheet planes of {}.

Unseeded rods show a strong preference for alignment of the by: Crystal boules of the magnetostrictive compound Terfenol-D have been grown from nominal compositions of Tb Dy Fe y and Tb Dy Fe y (y =) by the Czochralski technique using an induction-heated cold crucible.

Microstructural characterisation of cross-sections of the boules reveal large equiaxed grains with primary growth directions close to 〈〉.Cited by: Abstract The magnetic properties of a magnetostrictive Terfenol-D rod produced by the hydrogen Decrepitation (HD) process from cast material of composition RFe (R=Tb Dy ) are compared with those of cast and zoned rods of composition RFe The cast RFe alloy disproportionates into α-iron and rare earth hydrides on exposure to hydrogen, the material re-combining on desorption.

Abstract: X-ray diffraction has been used to study the magnetostrictive distortion in single-crystal Terfenol-D. The magnetostriction coefficient and the linear thermal-expansion coefficient have been determined over the temperature range of +or degrees C from observing the change in shape, diffraction angle, and intensity of the.

We considered a Terfenol-D film deposited on a compliant Si substrate ().h and h s are the thicknesses of the Terfenol-D layer and Si substrate, respectively.

As well known, a prestress induced by the thermal expansion or from other stress engineering will great affect the domain formation, magnetization and magnetostriction of the giant magnetic by: 8.

The magnetization at 15 kOe (M 15) and the coercive force (H c) are emu/g (which corresponds to T) and 70 Oe, respectively, for the starting induction-melted value of T for M 15 is in good agreement with the value of 1 T for saturation magnetization reported value of 70 Oe for H c is low, indicating that the ingots possess good magnetic by: Microstructural, magnetic and magnetostrictive properties of Tb Dy Fe prepared by solidification in a high magnetic field Tie Liu et al Journal of Physics D: Applied Physics 46 Cited by: We studied the effect of Dy 3+ content on the magnetic properties of cobalt ferrite single crystal.

The single crystals of CoFe Dy O 4 were grown by the flux method using Na 2 B 4 O H 2 O (Borax) as a solvent (flux). The black and shiny single crystals were obtained as a product. The X-ray diffraction analysis at room temperature confirmed the spinel cubic structure with lattice Cited by: Magnetic and microstructural properties of single crystal terfenol-D.

Author: Al-Jiboory, Muhammed Mekki. ISNI: Awarding Body: University of Salford Current Institution: University of Salford Date of Award: Availability of Full Text. The magnetic field in active magnetostrictive systems is usually generated via electromagnets.

The values of have been measured for Terfenol-D and Galfenol under static magnetic fields. Moffett et al [] first characterized stress- and field-dependence of in monolithic Terfenol-D by measuring magnetostriction versus magnetic field major loops under various mechanical by: 9.

Measured Terfenol-D material properties under varied applied magnetic field levels Marcelo J. Dapino, Frederick T. Calkins, Alison B. Flatau Iowa State University, Department of Aerospace. Depending on applications, the magnetic anisotropy plays a key role in physical property control.

In this paper, the magnetic anisotropy of sputter-deposited Terfenol-D thin films on single-crystal Si substrates was studied by both dynamic torque and magnetization by: 1. The 〈1 1 1〉 oriented twin-free TbDyFe2 single crystal possesses excellent magnetostrictive properties along the rod direction (〈1 1 1〉) in low magnetic fields and it is very useful.

composites containing the Terfenol-D particles (Kaleta,Lo,Schwartz, ). This involves necessity to examine properties of these new types of composite materials. In this paper we present the investigation on magnetostriction and DC magnetic properties, for Terfenol-D based composites.

The main goal of performed investigations was to. Among GMM, bulk Tb Dy Fe (Terfenol-D) presents a large room temperature strain at relatively low magnetic field (below 40 kA/m), good magneto-mechanical coupling factor, high energy. We present the effects of terbium additives upon the microstructure and magnetic properties of Fe83Ga17Tbx alloys (x = 0,and ), prepared by vacuum electric arc-melting and.

Magnetic and Mechanical Properties of Polycrystalline Galfenol E. Summers∗a, T. Lograssob, J.D. Snodgrass a, J. Slaughtera aEtrema Products Inc., North Loop Drive, Ames, IA, USA bAmes Laboratory-ISU, Ames, IA, USA ABSTRACT The Zone Melt Crystal Growth Method (FSZM) has been used to produce polycrystalline Galfenol specimens,Cited by: Physical properties.

The alloy has the highest magnetostriction of any alloy, up to m/m at saturation; it expands and contracts in a magnetic ol-D has a large magnetostriction force, high energy density, low sound velocity, and a low Young's its most pure form, it also has low ductility and a low fracture resistance.

Yang Y, Liu Q, Jiao Y, Ge Y, Hu Z, Gao Y, Jia G and Zhang J Application of steady magnetic field for refining solidification structure and enhancing mechanical properties of 25Cr–20Ni–Fe–C alloy in centrifugal casting ISIJ Int. 35 – CrossrefAuthor: W S Yip, S To.

The issue concerning the nature and the role of microstructural inhomogeneities in iron chalcogenide superconducting crystals of FeTe Se and their correlation with transport properties of this system was addressed.

The presented data demonstrate that chemical disorder originating from the kinetics of the crystal growth process significantly influences the superconducting properties Cited by: 5.Microstructural, magnetic and magnetostrictive properties of TbDyFe prepared by solidification in a high magnetic field Tie Liu, Yin Liu, Qiang Wang et al.-Recent citations Effect of copper on magnetostriction and mechanical properties of TbDyFe alloys Naijuan Wang et al-Vertical sections of TbHoFey.