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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1030| Magnetic properties and microstructure of Ba-ferrite powders prepared by ball milling | |
| GUILLERMO MENDOZA SUAREZ JOSE ANDRES MATUTES AQUINO JOSE IVAN ESCALANTE GARCIA HECTOR MANCHA MOLINAR DAVID RIOS JARA KAMELJIT KAUR JOHAL | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| Ba-ferrite | |
| The magnetic properties and the phase constitution of barium ferrite powders with Fe/Ba ratios varying from 7 to 15 and heat-treated in the temperature range 1000-1200°C are reported. The results showed that heating temperature was e!ective in increasing the magnetization (Ms ) of the powders for ratios> 10. For lower ratios Ms increased initially and then decreased with increasing temperature, presumably due to the formation of BaFe2O4. The coercivity (Hci ) presented a maximum for all the compositions and then decreased due to particle growth. In addition, the effect of the milling time on the magnetic properties and powder characteristics was investigated. It was found that 40 h of milling led to having samples with less volume fraction of second phases and that the magnetic properties were also maximized. TEM micrographs show particle sizes varying from 0.1 to 2 μm. | |
| 2000-09 | |
| Artículo | |
| Inglés | |
| OTRAS | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Artículos |
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| Fichero | Descripción | Tamaño | Formato | |
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| Magnetic properties and microstructure of Ba PDF 2001.pdf | 477.11 kB | Adobe PDF | Visualizar/Abrir |