Manufacture of Rare Earth-Cobalt Magnets

Weihrauch, P. F.; Paladino, Anna; Das, Dilip Kumar; Reid, W. R.; Lesensky, L.; Wettstein, E.; Gale, A. A.; Wolfe, Hugh C.; Graham, C. D.; Rhyne, J. J.

doi:10.1063/1.2946984

Cited by 3 publications

(3 citation statements)

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“…The results reported by Martin et al [1] and others [5][6][7][8]19], about the dependence of coercivity on the temperature and time of heat treatment could be explained in terms of the presented "diffusion length of rare-earth atoms" model.…”

Section: Discussionmentioning

confidence: 76%

“…Some authors have presented curves of coercive field as function of heat treatment temperature [6,7]. These curves show continuous increase of coercivity when temperature is decreased.…”

Section: Would the Coercive Field Be Related To The Diffusion Length mentioning

confidence: 97%

“…This effect is observed for all main types of rare-earth transitionmetal magnets like SmCo 5 [1][2][3][4][5][6][7][8], Sm(CoCuFeZr) z [8][9][10][11][12] and NdFeB [13][14][15], but the reason of the coercivity increase remains not plentifully clarified [3,4,11].…”

Section: Introductionmentioning

confidence: 97%

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Kinetical analysis of the heat treatment procedure in SmCo5 and other rare-earth transition-metal sintered magnets

Campos

Rios

2004

Journal of Alloys and Compounds

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Section: Discussionmentioning

confidence: 76%

“…Some authors have presented curves of coercive field as function of heat treatment temperature [6,7]. These curves show continuous increase of coercivity when temperature is decreased.…”

Section: Would the Coercive Field Be Related To The Diffusion Length mentioning

confidence: 97%

See 1 more Smart Citation

Kinetical analysis of the heat treatment procedure in SmCo5 and other rare-earth transition-metal sintered magnets

Campos

Rios

2004

Journal of Alloys and Compounds

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RETM5 and RE2TM17 permanent magnets development

Kumar

1988

Journal of Applied Physics

243

120

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RETM5 and RE2TM17 (RE=rare earth, TM=transition metal) permanent magnets are discussed in this review. The scientific and technological considerations which have guided their development are described. Along with a discussion of the various research efforts reported in the literature, they help establish the framework within which most of the work can be integrated and understood. In regard to the RETM5 alloys, the review limits itself to the technologically significant SmCo5 materials; others are discussed minimally, and only to the extent that they contributed to overall magnet development efforts. Likewise, from among the fabrication technologies, the review is limited to those processes which have been demonstrated as capable of producing magnets in bulk useful form. Areas covered in this review include phase diagrams, crystal structures, magnetocrystalline anisotropy, coercivity mechanisms, fabrication technologies, processing-microstructure-property interrelationships, and thermal effects related to stability of magnet flux. Directions for future, additional work are discussed briefly as well.

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