Photoacoustic characterization of phase transitions in amorphous metal alloys
- Autores
- Orzi, Daniel Jesús Omar; Bilmes, Gabriel Mario; Tocho, Jorge Omar; Mingolo, Nélida; Martínez, O. E.
- Año de publicación
- 1998
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión enviada
- Descripción
- 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.
- Materia
-
Ciencias Físicas
laser photoacoustic technique
amorphous alloys
crystallization temperatures
resistivity measurements - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
- OAI Identificador
- oai:digital.cic.gba.gob.ar:11746/499
Ver los metadatos del registro completo
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oai:digital.cic.gba.gob.ar:11746/499 |
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CICBA |
repository_id_str |
9441 |
network_name_str |
CIC Digital (CICBA) |
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:CICBA2025-09-29T13:40:00Zoai: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:94412025-09-29 13:40:00.665CIC 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 |
dc.description.none.fl_txt_mv |
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. |
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 |
reponame_str |
CIC Digital (CICBA) |
collection |
CIC Digital (CICBA) |
instname_str |
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires |
instacron_str |
CICBA |
institution |
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_ |
1844618592778190848 |
score |
13.070432 |