Experimental determination of the eutectic temperature in air of the CuO-TiO2 pseudobinary system
| Data(s) |
01/01/2012
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|---|---|
| Resumo |
Eutectic temperature and composition in the CuO–TiO2 pseudobinary system have been experimentally determined in air by means differential thermal analysis (DTA), thermogravimetry (TG) and hot-stage microscopy (HSM). Samples of the new eutectic composition treated at different temperatures have been characterized by X-ray diffraction (XRD) and X-ray absorption near-edge structural spectroscopy (XANES) to identify phases and to determine the Cu valence state, respectively. The results show that the eutectic temperature in air is higher by 100 °C (∼1000 °C) for a Ti-richer composition (XTiO2=25 mol%) than the one calculated in the literature. The reduction of Cu2+ to Cu+ takes places at about 1030 °C. The existence of Cu2TiO3 and Cu3TiO4 has been confirmed by XRD in the temperature range between 1045 and 1200 °C. |
| Formato |
application/pdf |
| Identificador | |
| Idioma(s) |
eng |
| Publicador |
E.T.S.I. Telecomunicación (UPM) |
| Relação |
http://oa.upm.es/20229/1/INVE_MEM_2012_131571.pdf http://www.sciencedirect.com/science/article/pii/S0955221911003608 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jeurceramsoc.2011.07.026 |
| Direitos |
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess |
| Fonte |
Journal of the European Ceramic Society, ISSN 0955-2219, 2012-01, Vol. 32, No. 1 |
| Palavras-Chave | #Telecomunicaciones #Física |
| Tipo |
info:eu-repo/semantics/article Artículo PeerReviewed |
