| dc.creator | JOSE ANDRES MATUTES AQUINO | |
| dc.date | 2003 | |
| dc.date.accessioned | 2018-11-19T14:48:40Z | |
| dc.date.available | 2018-11-19T14:48:40Z | |
| dc.identifier | http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1009 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/2262148 | |
| dc.description | In Cahuita town, Limon province, at the Atlantic coast of Costa Rica there are titanomagnetite sands. The chemical, structural and magnetic
characterization of the titanomagnetite sands can clarify aspects of their geological formation; as well as suggest applications from them.
The magnetic sand is composed mainly of titanomagnetite and hematite, with very small quartz impurities quantities, pyroxene, etc. The
refinement of X-rays diffraction patterns by the method of Rietveld indicates an 86.03% in weight of titanomagnetite and a 13.97% in weight
of hematite. The particles size of this magnetic sand have an interval of 75–300m and a specific surface area of 1.18m2/g. The specific
magnetization of the saturation of the sand is 55.8 emu/g and the intrinsic coercivity is 39.6 Oe.
In this work a characterization of the titanomagnetite sands is presented the chemical composition was determined by absorption spectroscopy.
The present crystalline phases were determined by X-ray diffraction. The morphology and composition of the particles were determined
by scanning electron microscopy together with microanalytical techniques. The classification of the particles by shape and color were
carried out using optical microscopy. The magnetic properties and the hyperfine structure were measured by vibrating sample magnetometry
and Mössbauer spectroscopy. | |
| 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/Magnetic properties/Titanomagnetite minerals | |
| dc.subject | info:eu-repo/classification/Costa Rica/Microstructure | |
| 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 | Study of titanomagnetite sands from Costa Rica | |
| dc.type | Artículos de revistas | |
| dc.type | info:eu-repo/semantics/submittedVersion | |
