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Orzi, D.J.; Bilmes, G.M.; Tocho, J.O.; Mingolo, N.; Martínez, O.E. "Photoacoustic characterization of phase transitions in amorphous metal alloys" (1998) Applied Physics B: Lasers and Optics. 66(2):245-249
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Abstract:

In this work a pulsed laser photoacoustic technique is employed in amorphous alloys for the characterization of crystallization temperatures and the determination of the activation energies for the transitions. It is shown that the changes produced in the photoacoustic signal generated by low energy laser pulses (< 200 μJ), is a sensitive probe for detecting the crystallization of a metallic amorphous sample. A piezoelectric transducer attached to the sample by means of a glass substrate was used for the acoustic detection. The developed technique has the advantages of requiring a minimum amount of sample, with no special sample preparation or conditioning. In order to demonstrate the validity of the technique, it was applied to the study of the crystallization processes of the amorphous Mg-Zn alloy, comparing the result with respect to resistivity measurements. © Springer-Verlag 1998.

Registro:

Documento: Artículo
Título:Photoacoustic characterization of phase transitions in amorphous metal alloys
Autor:Orzi, D.J.; Bilmes, G.M.; Tocho, J.O.; Mingolo, N.; Martínez, O.E.
Filiación:Centro de Investigaciones Opticas, Universidad Nacional de La Plata, C.C. 124, 1900, La Plata, Argentina
Departamento de Física, Facultad de Ingeniería, UBA, Paseo Colón 850, 1063 Buenos Aires, Argentina
Departamento de Física, FCEyN-UB, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave:Activation energy; Crystallization; Electric conductivity measurement; Laser pulses; Magnesium alloys; Phase transitions; Photoacoustic effect; Piezoelectric transducers; Pulsed laser applications; Temperature measurement; Pulsed laser photoacoustic methods; Amorphous alloys
Año:1998
Volumen:66
Número:2
Página de inicio:245
Página de fin:249
DOI: http://dx.doi.org/10.1007/s003400050383
Título revista:Applied Physics B: Lasers and Optics
Título revista abreviado:Appl Phys B
ISSN:09462171
CODEN:APBOE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09462171_v66_n2_p245_Orzi

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Citas:

---------- APA ----------
Orzi, D.J., Bilmes, G.M., Tocho, J.O., Mingolo, N. & Martínez, O.E. (1998) . Photoacoustic characterization of phase transitions in amorphous metal alloys. Applied Physics B: Lasers and Optics, 66(2), 245-249.
http://dx.doi.org/10.1007/s003400050383
---------- CHICAGO ----------
Orzi, D.J., Bilmes, G.M., Tocho, J.O., Mingolo, N., Martínez, O.E. "Photoacoustic characterization of phase transitions in amorphous metal alloys" . Applied Physics B: Lasers and Optics 66, no. 2 (1998) : 245-249.
http://dx.doi.org/10.1007/s003400050383
---------- MLA ----------
Orzi, D.J., Bilmes, G.M., Tocho, J.O., Mingolo, N., Martínez, O.E. "Photoacoustic characterization of phase transitions in amorphous metal alloys" . Applied Physics B: Lasers and Optics, vol. 66, no. 2, 1998, pp. 245-249.
http://dx.doi.org/10.1007/s003400050383
---------- VANCOUVER ----------
Orzi, D.J., Bilmes, G.M., Tocho, J.O., Mingolo, N., Martínez, O.E. Photoacoustic characterization of phase transitions in amorphous metal alloys. Appl Phys B. 1998;66(2):245-249.
http://dx.doi.org/10.1007/s003400050383