Microstructure, microchemistry, and magnetic properties of melt-spun Sm(Co,Fe,Cu,Zr)z magnets
作者： A. Yan , O. Gutfleisch , A. Handstein , T. Gemming , K.-H. Müller
DOI: 10.1063/1.1537700
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摘要: The evolution of the microstructure, microchemistry, and magnetic properties during slow cooling melt-spun Sm(Co,Fe,Cu,Zr)z magnets was investigated. It found that uniform cellular lamellar structures are formed upon isothermal aging as-spun ribbons at 850 °C for 3 h, without subsequent cooling. No microstructural changes no obvious difference in Cu content 2:17 matrix phase were observed after but coercivity significantly enhanced from 0.32 to T. A large gradient cell boundary detected highly coercive with by nanoprobe chemical analysis, contrast a homogeneous distribution Further investigation revealed spinodal structure is developed Cu-rich Sm(Co,Cu)5 SmCo high type could result...
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sci-hub.se 参考文章(11)
A. Yan, A. Bollero, K. H. Müller, O. Gutfleisch, Fast development of high coercivity in melt-spun Sm(Co,Fe,Cu,Zr)z magnets Applied Physics Letters. ,vol. 80, pp. 1243- 1245 ,(2002) , 10.1063/1.1450253
F. Hofer, Physical metallurgy and magnetic measurements of SmCo 5 -SmCu 5 alloys IEEE Transactions on Magnetics. ,vol. 6, pp. 221- 224 ,(1970) , 10.1109/TMAG.1970.1066730
E. Lectard, C. H. Allibert, R. Ballou, Saturation magnetization and anisotropy fields in the Sm(Co1−xCux)5 phases Journal of Applied Physics. ,vol. 75, pp. 6277- 6279 ,(1994) , 10.1063/1.355423
J. D. Livingston, D. L. Martin, Microstructure of aged (Co,Cu,Fe)7Sm magnets Journal of Applied Physics. ,vol. 48, pp. 1350- 1354 ,(1977) , 10.1063/1.323729
H Kronmüller, D Goll, Micromagnetic theory of the pinning of domain walls at phase boundaries Physica B-condensed Matter. ,vol. 319, pp. 122- 126 ,(2002) , 10.1016/S0921-4526(02)01113-4
D. Goll, I. Kleinschroth, W. Sigle, H. Kronmüller, Melt-spun precipitation-hardened Sm2(Co,Cu,Fe,Zr)17 magnets with abnormal temperature dependence of coercivity Applied Physics Letters. ,vol. 76, pp. 1054- 1056 ,(2000) , 10.1063/1.125936
J. Fidler, Coercivity of precipitation hardened cobalt rare earth 17:2 permanent magnets Journal of Magnetism and Magnetic Materials. ,vol. 30, pp. 58- 70 ,(1982) , 10.1016/0304-8853(82)90010-5
A.J. Perry, The constitution of copper-hardened samarium-cobalt permanent magnets Journal of The Less Common Metals. ,vol. 51, pp. 153- 162 ,(1977) , 10.1016/0022-5088(77)90182-5
E. A. Nesbitt, R. H. Willens, R. C. Sherwood, E. Buehler, J. H. Wernick, NEW PERMANENT MAGNET MATERIALS Applied Physics Letters. ,vol. 12, pp. 361- 362 ,(1968) , 10.1063/1.1651855
K.-D. Durst, H. Kronmüller, W. Ervens, Investigations of the magnetic properties and demagnetization processes of an extremely high coercive Sm(Co, Cu, Fe, Zr)7.6 permanent magnet. I. Determination of intrinsic magnetic material parameters Physica Status Solidi (a). ,vol. 108, pp. 403- 416 ,(1988) , 10.1002/PSSA.2211080143