Magnetic properties, phase evolution, and microstructure of melt spun Sm(Co1―zZrz)xCy (x = 5―9; y = 0―0.15; z = 0.03 and 0.06) ribbons

CHANG, H. W ; GUO, C. S ; et al.

In: Journal of magnetism and magnetic materials, Jg. 324 (2012), Heft 6, S. 1006-1010

academicJournal - print, 18 ref

Magnetic properties, phase evolution, and microstructure of melt spun Zr-substituted Sm(Co1―zZrz)xCy (x = 5―9; y=0-0.15; z=0.03 and 0.06) ribbons quenched at the wheel speed of 40 m/s have been studied. The x-ray diffraction analysis showed that the main phases, found in Sm(Co0.97Zr0.03)x ribbons, were 1:5 phase for x = 5―5.5; 1:5 and 1:7 phases for x=6; 1:7 phase for x=6.5-7.5; 1:7 and 2:17 phases for x = 8; and only 2:17 phase for x = 8.5―9, respectively. For Sm(Co0.97Zr0.03)x ribbons, the attractive magnetic properties of remanent magnetization (Br) of 5.5 kG, intrinsic coercivity (iHc) of 9.5 kOe, and energy product ((BH)max) of 7.0 MGOe were obtained for Sm(CO0.97Zr0.03)6.5 ribbons. Furthermore, a slight amount of C addition in Sm(Co0.97Zr0.03)x ribbons could not only effectively refine the grain size from 200 to 500 nm for C-free ribbon to 10-70 nm for C-added ribbons, but also bring extremely fine fcc-Co grains (2-10 nm), leading to the strengthened exchange coupling effect between the magnetic grains. As a result, magnetic properties were further improved. In this study, the optimal magnetic properties of Br = 6.3 kG, iHc = 10.5 kOe, and (BH)max = 9.0 MGOe were achieved for Sm(Co0.97Zr0.03)7C0.1 nanocomposites.

Titel:	Magnetic properties, phase evolution, and microstructure of melt spun Sm(Co1―zZrz)xCy (x = 5―9; y = 0―0.15; z = 0.03 and 0.06) ribbons
Autor/in / Beteiligte Person:	CHANG, H. W ; GUO, C. S ; HSIEH, C. C ; CHANG, W. C
Link:	E-Journal im Bestand der UB Hagen? View record from PASCAL Archive
Zeitschrift:	Journal of magnetism and magnetic materials, Jg. 324 (2012), Heft 6, S. 1006-1010
Veröffentlichung:	Amsterdam: Elsevier, 2012
Medientyp:	academicJournal
Umfang:	print, 18 ref
ISSN:	0304-8853 (print)
Schlagwort:	Electronics Electronique Condensed state physics Physique de l'état condensé Sciences exactes et technologie Exact sciences and technology Physique Physics Etat condense: structure electronique, proprietes electriques, magnetiques et optiques Condensed matter: electronic structure, electrical, magnetic, and optical properties Propriétés et matériaux magnétiques Magnetic properties and materials Domaines magnétiques, courbes d'aimantation et hystérésis Domain effects, magnetization curves, and hysteresis Courbes d'aimantation, inversion d'aimantation, hystérésis, effet barkhausen et phénomènes associés Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects Addition carbone Carbon additions Addition zirconium Zirconium additions Aimantation rémanente Remanent magnetization Imanación remanente Aimantation Magnetization Cobalt alliage Cobalt alloys Composé intermétallique Intermetallic compounds Concentration impureté Impurity density Concentración impureza Diffraction RX XRD Filage état liquide Melt spinning Force coercitive Coercive force Grosseur grain Grain size Hystérésis magnétique Magnetic hysteresis Interaction échange Exchange interactions Lanthanide alliage Rare earth alloys Microstructure Métal transition alliage Transition element alloys Nanocomposite Nanocomposites Samarium alliage Samarium alloys Structure grain fin Fine grain structure Estructura grano fino Magnetic intermetallic Magnetic property
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Article File Description: text Language: English Author Affiliations: Department of Physics, Tunghai University, Taichung 407, Tawain, Province of China ; Department of Physics, National Chung Cheng University, Chia-Yi 621, Tawain, Province of China Rights: Copyright 2015 INIST-CNRS ; CC BY 4.0 ; Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS Notes: Physics of condensed state: electronic structure, electrical, magnetic and optical properties

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