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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1022| Coercivity and magnetic viscosity in mechanical milled nanocrystalline YCo5 | |
| JOSE TRINIDAD ELIZALDE GALINDO JOSE ANDRES MATUTES AQUINO | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| Nanocrystalline | |
| High coercivity and magnetic viscosity in nanocrystalline YCo5 alloy were observed. The alloy was obtained by arc-melting the raw materials, mechanical milling for 4 h with subsequent heat treatment for short times at 1103 K and a final quenching in water. The x-ray diffraction pattern showed a single hexagonal 1:5 phase. The average crystallite size determined by transmission electron microscopy was 13 nm. Magnetic measurements were carried out at 85 K in a pulsed field magnetometer varying the field in the range 50–250 kOe and keeping the pulse duration equal to 0.3 s. A maximum coercivity of 50 kOe was measured when applying a maximum magnetic field of 250 kOe. The viscosity parameter was measured varying the dH/dt rate in the range 511–1113 kOe/ s. The calculated activation volumes from viscosity data were smaller than the crystallite volume from transmission electron microscopy, consistent with their different physical meanings. | |
| 2006 | |
| Artículo | |
| Inglés | |
| OTRAS | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Artículos |
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| Coercivity and magnetic viscosity in mechanical milled PDF 2006.pdf | 195.27 kB | Adobe PDF | Visualizar/Abrir |