| dc.creator | LUIS ALFONSO GARCIA CERDA | |
| dc.creator | JOSE ANDRES MATUTES AQUINO | |
| dc.creator | OSCAR EDUARDO AYALA VALENZUELA | |
| dc.date | 2004 | |
| dc.date.accessioned | 2018-11-19T14:50:04Z | |
| dc.date.available | 2018-11-19T14:50:04Z | |
| dc.identifier | http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1034 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/2262413 | |
| dc.description | Magnetic nanocomposites of Co-ferrite nanoparticles dispersed in silica matrix
(CoFe2O4/SiO2) have been prepared by the sol–gel technique using
tetraethylorthosilicate (TEOS) as precursor of silica, and metallic nitrates as precursors
of ferrite. Samples prepared in powder form have been dried at 100 °C for 3 h and
calcined for 2 h at temperatures between 500 and 1000 °C. Co-ferrite particles were
formed in the matrix pores and the nucleation of these particles was observed with the
increase in the calcining temperature. TEM measurements showed that the
nanoparticles had a fairly uniform morphology and an average particle size of
approximately 5 nm. The combination of different Co-ferrite concentrations and
calcining temperatures allowed to obtain samples with saturation magnetization ranging
from 0.7 to 21.8 emu/g. | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/about/cc0/ | |
| dc.subject | info:eu-repo/classification/Cobalt ferrite/Sol–gel process | |
| dc.subject | info:eu-repo/classification/Nanocomposite materials/Silica | |
| dc.subject | info:eu-repo/classification/X-ray diffraction/Magnetic measurements | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/22 | |
| dc.subject | info:eu-repo/classification/cti/2299 | |
| dc.subject | info:eu-repo/classification/cti/229999 | |
| dc.title | Magnetic nanocomposites: preparation and characterization of Co-ferrite nanoparticles in a silica matrix | |
| dc.type | Artículos de revistas | |
| dc.type | info:eu-repo/semantics/submittedVersion | |
