Control of Crystal Orientation in Zinc Electrodeposits by Imposition of a High Magnetic Field

Taniguchi, Takahisa; Sassa, Kensuke; Yamada, Takashi; Asai, Shigeo

doi:10.2320/matertrans1989.41.981

Cited by 36 publications

(31 citation statements)

References 11 publications

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“…17), 18) The latter is used for the align ments of crystal orientation and texture structures on the basis of the magnetic susceptibility difference due to the crystal magnetic anisotropy and the demagnetization factor differ ence due to the shape anisotropy. The possibility of magnetic transportation and magnetic rotation was then examined un der several processes such as solidification, 13), 19) electrodepo sition, 20) vapordeposition 21), 22) and solid phase reaction. 23) In this review paper, we demonstrate that the highly tex tured microstructure of dense alumina can be fabricated by colloidal processing under a strong magnetic field, followed by heating, 24)27) and that this process is used for microstruc ture development of the textured alumina by adding several kinds of impurities or second phases.…”

Section: )16)mentioning

confidence: 99%

Textured Development of Feeble Magnetic Ceramics by Colloidal Processing Under High Magnetic Field

Sakka

Suzuki

2005

J. Ceram. Soc. Japan

226

141

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The controlled development of texture is one of the ways for effectively improving physical and mechanical properties. In this review paper, we introduce a new processing of textured ceramics with a feeble magnetic sus ceptibility by slip casting in a high magnetic field and subsequent heating. As an example of feeble magnetic ceramics, we demonstrate the fabrication of textured alumina in details. The susceptibility of diamagnetic aalu mina is very small, but the orientation energy of the alumina particle by a high magnetic field becomes greater than the thermal energy. aAlumina with a rhombohedral structure shows anisotropic susceptibility, but this anisotropy has up to now been more or less ignored due to its very low value. However, in a high magnetic field, the energy of crystal anisotropy becomes comparable to or greater than the energy of thermal motion. The degree of orientation depends on the processing factors, such as heating temperature, particle size, applied magnetic field, concentration of the suspension, etc. This process technique confers several advantages and it is possible for this type of processing to be applied to other noncubic ceramics, such as TiO 2 , ZnO, SnO, hydrooxy apatite (HAP), AlN, SiC, Si 3 N 4 , etc.

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Section: )16)mentioning

confidence: 99%

Textured Development of Feeble Magnetic Ceramics by Colloidal Processing Under High Magnetic Field

Sakka

Suzuki

2005

J. Ceram. Soc. Japan

226

141

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“…For example, needle-like fiber [1,2], carbon nanotubes [3,4] and inorganic crystals [5][6][7], which are typical one-dimensional materials, have attracted much interest because of their unique properties and potential applications in mechanical, electrical and thermodynamic devices. Chainlike materials are also considered one dimensional.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of chainlike cluster movement of feeble magnetic particles by induced magnetic dipole moment under high magnetic fields

Ando

Hirota

Wada

2009

Science and Technology of Advanced Materials

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In this paper, the motion of a chainlike cluster of feeble magnetic particles induced by high magnetic field is discussed on the basis of the results of numerical simulations. The simulations were performed on glass particles with a diameter of 0.8 mm; and the viscosity, applied magnetic field and magnetic properties of the surrounding medium were changed. In addition to the magnetic field and the difference in magnetic susceptibility between the particles and the surrounding medium, the obtained results indicate that the viscosity is an essential factor for the formation of the chainlike alignment of feeble magnetic particles. We also carried out simulations using glass particles with a smaller diameter of 0.1 mm. Chainlike clusters were produced similar to those of ferromagnetic particles formed in a ferromagnetic fluid.

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“…Owing to the magnetic anisotropy of certain crystal structures, grain alignment and crystal orientation by the application of a magnetic field has led to interesting phenomena. The experimental research has demonstrated that magnetic field can have a significant effect on the solidification [3][4][5], solid phase transformations [6,7], grain growth and grain boundary motion [8], electro-deposition [9], vapor-deposition [10], alignment of CNT in composites and neat macroscopic membranes [11].…”

Section: Introductionmentioning

confidence: 99%

On the influence of magnetic field processing on the texture, phase assemblage and properties of low aspect ratio Bi₂Sr₂CaCu₂O_x/AgMg wire

Liu

Schwartz

2009

Science and Technology of Advanced Materials

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Bi 2 Sr 2 CaCu 2 O x /AgMg conductors are potentially important for many applications up to 20 K, including magnets for cryogen-free magnetic resonance imaging and high field nuclear magnetic resonance research. One promising approach to increased critical current density is partial-melt processing in the presence of a magnetic field which has been shown to enhance c-axis texturing of wide, thin tape conductors. Here, we report on low aspect ratio rectangular conductors processed in an 8 T magnetic field. The magnetic field is applied during different stages of the heat treatment process. The conductors are electrically characterized using four-point critical current measurements as a function of magnetic field and magnetic field orientation relative to the conductor. The superconductive transition and magnetization hysteresis are measured using a SQUID magnetometer. The microstructures are characterized using scanning electron microscopy and energy dispersive spectroscopy and analyzed using digital image processing. It is found that the presence of a magnetic field during split melt processing enhances the electrical transport and magnetic behavior, but that the anisotropy is not consistently affected. The magnetic field also affects development of interfilamentary Bi2212 bridges, and that this depends on the initial shape of the Bi2212 filament. At least two behaviors are identified; one impacts the oxide phase assemblage and the other impacts textured growth.

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Control of Crystal Orientation in Zinc Electrodeposits by Imposition of a High Magnetic Field

Cited by 36 publications

References 11 publications

Textured Development of Feeble Magnetic Ceramics by Colloidal Processing Under High Magnetic Field

Textured Development of Feeble Magnetic Ceramics by Colloidal Processing Under High Magnetic Field

Numerical simulation of chainlike cluster movement of feeble magnetic particles by induced magnetic dipole moment under high magnetic fields

On the influence of magnetic field processing on the texture, phase assemblage and properties of low aspect ratio Bi₂Sr₂CaCu₂O_x/AgMg wire

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Control of Crystal Orientation in Zinc Electrodeposits by Imposition of a High Magnetic Field

Cited by 36 publications

References 11 publications

Textured Development of Feeble Magnetic Ceramics by Colloidal Processing Under High Magnetic Field

Textured Development of Feeble Magnetic Ceramics by Colloidal Processing Under High Magnetic Field

Numerical simulation of chainlike cluster movement of feeble magnetic particles by induced magnetic dipole moment under high magnetic fields

On the influence of magnetic field processing on the texture, phase assemblage and properties of low aspect ratio Bi2Sr2CaCu2Ox/AgMg wire

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On the influence of magnetic field processing on the texture, phase assemblage and properties of low aspect ratio Bi₂Sr₂CaCu₂O_x/AgMg wire