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Abstract:

The photothermal photodeflection technique is shown to provide information on the homogeneity of fuel pellets, pore distribution, clustering detection of pure urania and gadolinea and to provide a two-dimensional mapping of the thermal diffusivity correlated to the composition of the interdiffused Gadolinium and Uranium oxide. Histograms of the thermal diffusivity distribution become a reliable quantitative way of quantifying the degree of homogeneity and the width of the histogram can be used as a direct measure of the homogeneity. These quantitative measures of the homogeneity of the samples at microscopic levels provides a protocol that can be used as a reliable specification and quality control method for nuclear fuels, substituting with a single test a battery of expensive, time consuming and operator dependent techniques. © 2012 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Photothermal microscopy applied to the characterization of nuclear fuel pellets
Autor:Zaldivar Escola, F.; Martínez, O.E.; Mingolo, N.; Kempf, R.
Filiación:Universidad de Buenos Aires, Facultad de Ingeniería, Paseo Colon 850, 1063 Buenos Aires, Argentina
Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales Int., Cdad. Universitaria, Güiraldes 2160, Pabellón I, Caba C1428EAH, Argentina
CNEA, Unidad Actividad Combustibles Nucleares, División Caracterización, San Martín, Pcia. de Buenos Aires, Argentina
CONICET, Argentina
Tolket SRL, Buenos Aires, Argentina
Palabras clave:Direct measures; Microscopic levels; Photo-thermal; Photodeflection technique; Photothermal microscopy; Pore distribution; Quantitative measures; Two dimensional mapping; Uranium oxides; Gadolinium; Graphic methods; Statistical methods; Uranium; Nuclear fuel pellets
Año:2013
Volumen:435
Número:1-3
Página de inicio:17
Página de fin:24
DOI: http://dx.doi.org/10.1016/j.jnucmat.2012.12.014
Título revista:Journal of Nuclear Materials
Título revista abreviado:J Nucl Mater
ISSN:00223115
CODEN:JNUMA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223115_v435_n1-3_p17_ZaldivarEscola

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Citas:

---------- APA ----------
Zaldivar Escola, F., Martínez, O.E., Mingolo, N. & Kempf, R. (2013) . Photothermal microscopy applied to the characterization of nuclear fuel pellets. Journal of Nuclear Materials, 435(1-3), 17-24.
http://dx.doi.org/10.1016/j.jnucmat.2012.12.014
---------- CHICAGO ----------
Zaldivar Escola, F., Martínez, O.E., Mingolo, N., Kempf, R. "Photothermal microscopy applied to the characterization of nuclear fuel pellets" . Journal of Nuclear Materials 435, no. 1-3 (2013) : 17-24.
http://dx.doi.org/10.1016/j.jnucmat.2012.12.014
---------- MLA ----------
Zaldivar Escola, F., Martínez, O.E., Mingolo, N., Kempf, R. "Photothermal microscopy applied to the characterization of nuclear fuel pellets" . Journal of Nuclear Materials, vol. 435, no. 1-3, 2013, pp. 17-24.
http://dx.doi.org/10.1016/j.jnucmat.2012.12.014
---------- VANCOUVER ----------
Zaldivar Escola, F., Martínez, O.E., Mingolo, N., Kempf, R. Photothermal microscopy applied to the characterization of nuclear fuel pellets. J Nucl Mater. 2013;435(1-3):17-24.
http://dx.doi.org/10.1016/j.jnucmat.2012.12.014