Avtor/Urednik		Samardžija, Zoran; Čeh, Miran; Makovec, Darko; Kolar, Drago
Naslov		Determination of the solubility of cerium in BaTiO3 by quantitative WDS electron probe microanalysis
Tip		članek
Vir		Mikrochim acta, Suppl
Vol. in št.		Letnik Suppl, št. 13
Leto izdaje		1996
Obseg		str. 517-23
Jezik		eng
Abstrakt		Quantitative wavelength dispersive X-ray microanalysis was applied for determination of Ba, Ti and Ce concentrations in Ce-doped Ba TiO3 ceramics. There are rare cases in wavelength dispersive analysis where the most intense X-ray lines of the analyzed elements overlap. Such is the case when analyzing matrices containing Ba and Ce, where multiple overlap of Cel alpha1.2 and BaL beta1,4 lines is present. Two independent simplified mehods were applied to evaluate this Ce-Ba peak overlap in order to obtain true k-ratios for Ce in BaTiO3: the caliration curve method and the reference spectra fitting method. The experimental conditions of an electron probe microanalyzer were optimized to achieve improved sensitivity and precision of analysis. Pure CeO2 and BaTiO3 were chosen as standards. K-ratios were corrected by the ZAF matrix correction procedure. Results were calculated for the peorfskite ABO3 formula considering different modes of dopant incorporation and donor charge compensation.
Deskriptorji		CERIUM SOLUBILITY TITANIUM BARIUM CERAMICS ELECTRON PROBE MICROANALYSIS