Electrical and magnetic properties of coprecipited Ba-hexaferrites with addition of SiO2
Preliminary results on the effects of magnetic, electrical and structural characteristics of BaFe12O19, with addition of SiO2, prepared by the chemical coprecipitation method are reported. Several firing temperatures were used to investigate the admixture of SiO2 in the samples. Experimental data of...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1999 |
| País: | México |
| Institución: | Universidad Nacional Autónoma de México |
| Repositorio: | Sistema de Información de la Facultad de Ciencias, UNAM |
| OAI Identifier: | oai:repositorio.fciencias.unam.mx:11154/3297 |
| Acceso en línea: | http://hdl.handle.net/11154/3297 |
| Access Level: | acceso abierto |
| Palabra clave: | Materials Science, Multidisciplinary Ba ferrite SiO2 chemical coprecipitation electrical conductivity |
| Sumario: | Preliminary results on the effects of magnetic, electrical and structural characteristics of BaFe12O19, with addition of SiO2, prepared by the chemical coprecipitation method are reported. Several firing temperatures were used to investigate the admixture of SiO2 in the samples. Experimental data of electrical conductivity were obtained by ac measurements. Results are presented in terms of thermal and frequency dependent conductivity, sigma(omega). Universal sigma(0) + A omega s-type behavior is observed for log sigma(omega) vs logf |
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