Photoacoustic characterization of phase transitions in amorphous metal alloys

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...

Descripción completa

Detalles Bibliográficos
Autores: Orzi, Daniel Jesús Omar, Bilmes, Gabriel Mario, Tocho, Jorge Omar, Mingolo, Nélida, Martínez, O. E.
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:1998
País:Argentina
Institución:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
Repositorio:CIC Digital (CICBA)
Idioma:inglés
OAI Identifier:oai:digital.cic.gba.gob.ar:11746/499
Acceso en línea:https://digital.cic.gba.gob.ar/handle/11746/499
Access Level:acceso abierto
Palabra clave:Ciencias Físicas
laser photoacoustic technique
amorphous alloys
crystallization temperatures
resistivity measurements
id AR_8408577bf85b3e2bd132efa7eb69a166
oai_identifier_str oai:digital.cic.gba.gob.ar:11746/499
network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling Photoacoustic characterization of phase transitions in amorphous metal alloysOrzi, Daniel Jesús OmarBilmes, Gabriel MarioTocho, Jorge OmarMingolo, NélidaMartínez, O. E.Ciencias Físicaslaser photoacoustic techniqueamorphous alloyscrystallization temperaturesresistivity measurementsIn 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.Centro de Investigaciones Ópticas (CIOP)1998info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://digital.cic.gba.gob.ar/handle/11746/499enghttp://digital.cic.gba.gob.ar/handle/123456789/68info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/reponame:CIC Digital (CICBA)instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Airesinstacron:CICBA2024-05-10T10:38:58Zoai:digital.cic.gba.gob.ar:11746/499Institucionalhttp://digital.cic.gba.gob.arOrganismo científico-tecnológicoNo correspondehttp://digital.cic.gba.gob.ar/oai/snrdmarisa.degiusti@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:94412024-05-10 10:38:58.784CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Airesfalse
dc.title.none.fl_str_mv Photoacoustic characterization of phase transitions in amorphous metal alloys
title Photoacoustic characterization of phase transitions in amorphous metal alloys
spellingShingle Photoacoustic characterization of phase transitions in amorphous metal alloys
Orzi, Daniel Jesús Omar
Ciencias Físicas
laser photoacoustic technique
amorphous alloys
crystallization temperatures
resistivity measurements
title_short Photoacoustic characterization of phase transitions in amorphous metal alloys
title_full Photoacoustic characterization of phase transitions in amorphous metal alloys
title_fullStr Photoacoustic characterization of phase transitions in amorphous metal alloys
title_full_unstemmed Photoacoustic characterization of phase transitions in amorphous metal alloys
title_sort Photoacoustic characterization of phase transitions in amorphous metal alloys
dc.creator.none.fl_str_mv Orzi, Daniel Jesús Omar
Bilmes, Gabriel Mario
Tocho, Jorge Omar
Mingolo, Nélida
Martínez, O. E.
author Orzi, Daniel Jesús Omar
author_facet Orzi, Daniel Jesús Omar
Bilmes, Gabriel Mario
Tocho, Jorge Omar
Mingolo, Nélida
Martínez, O. E.
author_role author
author2 Bilmes, Gabriel Mario
Tocho, Jorge Omar
Mingolo, Nélida
Martínez, O. E.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Físicas
laser photoacoustic technique
amorphous alloys
crystallization temperatures
resistivity measurements
topic Ciencias Físicas
laser photoacoustic technique
amorphous alloys
crystallization temperatures
resistivity measurements
description 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.
publishDate 1998
dc.date.none.fl_str_mv 1998
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://digital.cic.gba.gob.ar/handle/11746/499
url https://digital.cic.gba.gob.ar/handle/11746/499
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://digital.cic.gba.gob.ar/handle/123456789/68
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Centro de Investigaciones Ópticas (CIOP)
publisher.none.fl_str_mv Centro de Investigaciones Ópticas (CIOP)
dc.source.none.fl_str_mv reponame:CIC Digital (CICBA)
instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
instname_str Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron_str CICBA
institution CICBA
reponame_str CIC Digital (CICBA)
collection CIC Digital (CICBA)
repository.name.fl_str_mv CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
repository.mail.fl_str_mv marisa.degiusti@sedici.unlp.edu.ar
_version_ 1799196490820747264
score 15,812429

Similares en LA Referencia