Highly dense and thin composite-bonded magnets with spherical fine powder

Yamashita, F.; Ogushi, Masaki; Nakano, Masaki; Fukunaga, H.

doi:10.1016/j.jmmm.2006.10.1073

Cited by 14 publications

(4 citation statements)

References 3 publications

(4 reference statements)

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“…Most rare-earth bonded magnets are isotropic because the magnetic powders used for producing bonded magnets are isotropic. Although attempts have been made to produce anisotropic bonded rare-earth magnets based on Nd-Fe-B and Sm-Fe-N micrometre-sized powder particles [5][6][7][8] production of nanoscale anisotropic rare-earth magnetic powder particles remains a significant challenge.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic bonded magnets fabricated via surfactant-assisted ball milling and magnetic-field processing

Poudyal¹,

Nguyen²,

Rong³

et al. 2011

J. Phys. D: Appl. Phys.

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Anisotropic bonded magnets are fabricated by surfactant-assisted ball milling in a magnetic field and magnetic field alignment of the milled chip-like nanoparticles of the Sm-Co and Nd-Fe-B materials. It is found that the application of magnetic fields during the ball milling strengthens the anisotropy of the chips and therefore improves the alignment. For SmCo 5 phase-based chips, for instance, energy products up to 26.0 MG Oe and 19.1 MG Oe are obtained for the chips and the bonded magnets, respectively. This combined technique opens a new approach to the fabrication of anisotropic bonded magnets for various applications.

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Section: Introductionmentioning

confidence: 99%

Anisotropic bonded magnets fabricated via surfactant-assisted ball milling and magnetic-field processing

Poudyal¹,

Nguyen²,

Rong³

et al. 2011

J. Phys. D: Appl. Phys.

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show abstract

“…Isotropic Nd-Fe-B ring-shaped rubber-bonded magnets have been used in small motors and actuators for personal computers and peripherals. However, computers miniaturization inevitably stresses the importance of flexible bonded magnets with superior magnetic properties contributing to the overall computer size reduction [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Epoxy resin effect on anisotropic Nd–Fe–B rubber-bonded magnets performance

Zhai

Sun

Yuan

et al. 2011

Journal of Alloys and Compounds

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“…Nevertheless, the same technique cannot be recommended for the nanocomposite magnetic powders (particularly, surfactant-coated powders)-as the nanocrystalline structure is metastable and cannot be maintained in the normal densification process. On the other hand, epoxy resin-bonding-a technique in which the magnetic powder is bonded with organic polymer with directional alignment could be an alternative choice for the processing of such powders into bonded magnets [22,23]. These magnets may have several advantages over conventional sintered and melt-quenched RE-PM materials, such as remanence enhancement, corrosion resistance and adaptability to the MEMS processing.…”

Section: Introductionmentioning

confidence: 99%