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dc.date.accessioned 2015-05-18T12:26:51Z
dc.date.available 2015-05-18T12:26:51Z
dc.identifier.uri https://digital.cic.gba.gob.ar/handle/11746/499
dc.title Photoacoustic characterization of phase transitions in amorphous metal alloys en
dc.type Artículo es
dcterms.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. en
dcterms.extent 5 p. es
dcterms.issued 1998
dcterms.language Inglés es
dcterms.license Attribution 4.0 International (BY 4.0) es
dcterms.publisher Centro de Investigaciones Ópticas (CIOP) es
dcterms.relation 30 años (1977-2007): Centro de Investigaciones Ópticas (CIOp) es
dcterms.subject laser photoacoustic technique en
dcterms.subject amorphous alloys en
dcterms.subject crystallization temperatures en
dcterms.subject resistivity measurements en
cic.version info:eu-repo/semantics/submittedVersion es
dcterms.creator.author Orzi, Daniel Jesús Omar es
dcterms.creator.author Bilmes, Gabriel Mario es
dcterms.creator.author Tocho, Jorge Omar es
dcterms.creator.author Mingolo, Nélida es
dcterms.creator.author Martínez, O. E. es
cic.lugarDesarrollo Centro de Investigaciones Ópticas es
dcterms.subject.materia Ciencias Físicas es
dcterms.isPartOf.issue 66 es
dcterms.isPartOf.series Applied Physics B en
cic.isPeerReviewed true es
cic.isFulltext true es


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