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FIB Preparation of a NiO Wedge-Lamella and STEM X-Ray Microanalysis for the Determination of the Experimental k(O-Ni) Cliff-Lorimer Coefficient (Articolo in rivista)

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FIB Preparation of a NiO Wedge-Lamella and STEM X-Ray Microanalysis for the Determination of the Experimental k(O-Ni) Cliff-Lorimer Coefficient (Articolo in rivista) (literal)

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Armigliato A. [ 1 ] ; Frabboni S. [ 2,3 ] ; Gazzadi G. C. [ 3 ] ; Rosa R. [ 4 ] (2013)
FIB Preparation of a NiO Wedge-Lamella and STEM X-Ray Microanalysis for the Determination of the Experimental k(O-Ni) Cliff-Lorimer Coefficient
in Microscopy and microanalysis (Print); CAMBRIDGE UNIV PRESS, 32 AVENUES OF THE AMERICAS, NEW YORK, NY 10013-2473 (Stati Uniti d'America)
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Armigliato A. [ 1 ] ; Frabboni S. [ 2,3 ] ; Gazzadi G. C. [ 3 ] ; Rosa R. [ 4 ] (literal)

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[ 1 ] CNR IMM Inst, I-40129 Bologna, Italy [ 2 ] Univ Modena & Reggio Emilia, Dipartimento Fis, I-41100 Modena, Italy [ 3 ] CNR Ist Nanosci S3, I-41100 Modena, Italy [ 4 ] Univ Bologna, Dipartimento Sci Stat, I-40126 Bologna, Italy (literal)

Titolo

FIB Preparation of a NiO Wedge-Lamella and STEM X-Ray Microanalysis for the Determination of the Experimental k(O-Ni) Cliff-Lorimer Coefficient (literal)

Abstract

A method for the fabrication of a wedge-shaped thin NiO lamella by focused ion beam is reported. The starting sample is an oxidized bulk single crystalline, < 100 > oriented, Ni commercial standard. The lamella is employed for the determination, by analytical electron microscopy at 200 kV of the experimental k(O-Ni) Cliff-Lorimer (G. Cliff & G. W. Lorimer, J Microsc 103, 203-207, 1975) coefficient, according to the extrapolation method by Van Cappellen (E. Van Cappellen, Microsc Microstruct Microanal 1, 1-22, 1990). The result thus obtained is compared to the theoretical k(O-Ni) values either implemented into the commercial software for X-ray microanalysis quantification of the scanning transmission electron microscopy/energy dispersive spectrometry equipment or calculated by the Monte Carlo method. Significant differences among the three values are found. This confirms that for a reliable quantification of binary alloys containing light elements, the choice of the Cliff-Lorimer coefficients is crucial and experimental values are recommended (literal)

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