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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. © 2013 Materials Research Society.

Registro:

Documento: Conferencia
Título:Photothermal microscopy applied to the characterization of UO 2-Gd2O3 nuclear fuel pellets
Autor:Martínez, O.; Zaldivar, F.; Mingolo, N.; Kempf, R.
Ciudad:Boston, MA
Filiación:Fisica, Facultad de Ingeniería, Universidad de Buenos Aires, Buenos Aires, CABA, Argentina
Fisica, FCEN, Universidad de Buenos Aires, Buenos Aires, CABA, Argentina
Toket SRL, Buenos Aires, CABA, Argentina
Unidad Actividad Combustibles Nucleares, División Caracterización, CNEA, San Martin, Buenos Aires, Argentina
CONICET, Buenos Aires, CABA, Argentina
Palabras clave:Direct measures; Microscopic levels; Photodeflection technique; Photothermal microscopy; Pore distribution; Quantitative measures; Two dimensional mapping; Uranium oxides; Nuclear fuel pellets; Statistical methods; Graphic methods
Año:2013
Volumen:1492
Página de inicio:47
Página de fin:52
DOI: http://dx.doi.org/10.1557/opl.2013.543
Título revista:2012 MRS Fall Meeting
Título revista abreviado:Mater Res Soc Symp Proc
ISSN:02729172
CODEN:MRSPD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02729172_v1492_n_p47_Martinez

Referencias:

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  • Martínez, O.E., Balzarotti, F., Mingolo, N., Thermoreflectance and photodeflection combined for microscopic characterization of metallic surfaces (2008) Applied Physics B, 90, pp. 69-77
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  • Crossa Archiopoli, U., Mingolo, N., Martínez, O.E., Two-dimensional imaging of thermal diffusivity in metals by scanning photodeflection detection (2010) Journal of Applied Physics, 107, pp. 0235201-0235206
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  • Singh, M.P., Thakur, C.S., Shalini, K., Banerjee, S., Bhat, N., Shivashankar, S.A., Structural, optical, and electrical characterization of gadolinium oxide films deposited by low-pressure metalorganic chemical vapor deposition (2004) J. Appl. Phys., 96, pp. 5631-5637
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  • Amaya, M., Hirai, M., Sakurai, H., Ito, K., Sasaki, M., Nomata, T., Kamimura, K., Iwasaki, R., Thermal conductivities of irradiated UO2 and (U, Gd)O 2 pellets (2002) Journal of Nuclear Materials, 300, pp. 57-64

Citas:

---------- APA ----------
Martínez, O., Zaldivar, F., Mingolo, N. & Kempf, R. (2013) . Photothermal microscopy applied to the characterization of UO 2-Gd2O3 nuclear fuel pellets. 2012 MRS Fall Meeting, 1492, 47-52.
http://dx.doi.org/10.1557/opl.2013.543
---------- CHICAGO ----------
Martínez, O., Zaldivar, F., Mingolo, N., Kempf, R. "Photothermal microscopy applied to the characterization of UO 2-Gd2O3 nuclear fuel pellets" . 2012 MRS Fall Meeting 1492 (2013) : 47-52.
http://dx.doi.org/10.1557/opl.2013.543
---------- MLA ----------
Martínez, O., Zaldivar, F., Mingolo, N., Kempf, R. "Photothermal microscopy applied to the characterization of UO 2-Gd2O3 nuclear fuel pellets" . 2012 MRS Fall Meeting, vol. 1492, 2013, pp. 47-52.
http://dx.doi.org/10.1557/opl.2013.543
---------- VANCOUVER ----------
Martínez, O., Zaldivar, F., Mingolo, N., Kempf, R. Photothermal microscopy applied to the characterization of UO 2-Gd2O3 nuclear fuel pellets. Mater Res Soc Symp Proc. 2013;1492:47-52.
http://dx.doi.org/10.1557/opl.2013.543