| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
|
|
|
|
Permanent Magnetic Properties of Melt-Spun YCo5Cx Ribbons |
WANG Fei, YAN Yu, YUAN Zhou, BAI Xue, DU Xiao-Bo, WANG Wen-Quan, SU Feng, JIN Han-Min |
| State key Laboratory for Superhard Materials and Department of Physics, Jilin University, Changchun 130012 |
|
| Cite this article: |
|
WANG Fei, YAN Yu, YUAN Zhou et al 2010 Chin. Phys. Lett. 27 067503 |
|
|
|
|
Abstract Ribbons of nominal compositions YCo5Cx (x = 0, 0.2, 0.4, 0.6) are prepared by melt spinning at surface velocities v=5, 10, 15, 20, 25, 30 and 35 m/s. YCo5 ribbon is crystallized in a single YCo5 phase of hexagonal CaCu5 structure. A small quantity of YCoC2 phase appears in the ribbons with C addition besides the YCo5 phase. With the increase of x the lattice constant c increases and a along with the unit cell volume decreases. The largest values of iHc=888 kA/m and (BH)max =58.4 kJ/m3 at present for the YCo5 ribbon system were obtained with x=0.4 and v=20 m/s. The improvement of the permanent magnetic properties is rooted in the refinement of the microstructure and the appearance of the YCoC2 phase which can act as domain wall pinning centers.
|
| Keywords:
75.50.Tt
75.50.Vv
75.50.Ww
|
|
|
Received: 22 January 2010
Published: 25 May 2010
|
|
| PACS: |
75.50.Tt
|
(Fine-particle systems; nanocrystalline materials)
|
| |
75.50.Vv
|
(High coercivity materials)
|
| |
75.50.Ww
|
(Permanent magnets)
|
|
|
|
|
|
[1] Strnat K J 1988 Ferromagnetic Materials (Amsterdam: Elsevier Science Publishers) chap 4 p 131
[2] Strnat~K, Hoffer G, Olson J and Ostertag W 1967 J. Appl. Phys. 38 1001
[3] Wallace W E et al 1984 IEEE Trans. Magn. 20 1599
[4] Velu E M T, Obermyer R T, Sankar S G and Wallace W E 1989 J. Less-Common Metals 148 67
[5] Sánchez Ll J L, Elizalde-Galindo J T and Matutes-Aquino J A 2003 Solid State Commun. 127 527
[6] Tang N, Chen Z M, Zhang Y and Hadjipanayis G C 2000 J. Magn. Magn. Mater. 219 173
[7] Santana Gil A et al 2007 J. Magn. Magn. Mater. 316 e132
[8] Elizalde Galindo J T, Matutes Aquino J A, Davies H A and Liu Z 2005 J.Magn. Magn. Mater. 294 e137
[9] Schäfer W, Will G, Kotsanidis P A and Yakinthos J K 1990 J. Magn. Magn. Mater. 88 13
[10] Hadjipanayis G C, Dickenson R C and Lawless K R 1986 J. Magn. Magn. Mater. 54 557
[11] Hadjipanayis G C, Lawless K R and Dickerson R C 1985 J. Appl. Phys. 57 4097
[12] Gong Y M et al 2008 Chin. Phys. B 17 1130
[13] Zhang H W et al 2004 J. Magn. Magn. Mater. 278 127
[14] Pareti L, Solzi M and Marusi G 1992 J. Appl. Phys. 72 3009
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
