Electrical Resistance and Crystallization Characteristics of Fe/Sub 80/B/Sub 20/a
Autor(a) principal: | |
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Data de Publicação: | 1981 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/95358 |
Resumo: | The electrical resistance of amorphous Fe80B20 has been measured as a function of time at various temperatures during an isothermal crystallization process. The results fit a universal curve when ∆R/∆R1 is plotted against t/t1. The value of t, as a function of annealing temperature fits the Johnson-Mehl-Avra:ni equation with n = 3 changing to 1.4 for t/t1 > 1.4. The resistance of a series of partially crystallized samples was measured between 4.2 and 300 K. dR/dT at 300 K and dR/dlogT below the resistance minimum were both found to be linear funtions of ∆R/∆R1. That is, both the above quantities were found to be strictly proportional to the amount of crystalline phase present. This may pose some difficulty for the structural tunneling model of the low temperature resistance minimum in metallic glasses. |
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Baibich, Mario NorbertoMuir, W.B.Van Wyck, D.R.2014-05-17T02:06:52Z19810021-8979http://hdl.handle.net/10183/95358000127821The electrical resistance of amorphous Fe80B20 has been measured as a function of time at various temperatures during an isothermal crystallization process. The results fit a universal curve when ∆R/∆R1 is plotted against t/t1. The value of t, as a function of annealing temperature fits the Johnson-Mehl-Avra:ni equation with n = 3 changing to 1.4 for t/t1 > 1.4. The resistance of a series of partially crystallized samples was measured between 4.2 and 300 K. dR/dT at 300 K and dR/dlogT below the resistance minimum were both found to be linear funtions of ∆R/∆R1. That is, both the above quantities were found to be strictly proportional to the amount of crystalline phase present. This may pose some difficulty for the structural tunneling model of the low temperature resistance minimum in metallic glasses.application/pdfengJournal of Applied Physics. Woodbury. Vol. 52, n. 3, part II (Mar. 1981), p. 1886-1888Física da matéria condensadaCondutividade elétricaCristalizaçãoMedidas fisicasLigas amorfasVidros metalicosElectrical Resistance and Crystallization Characteristics of Fe/Sub 80/B/Sub 20/aEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000127821.pdf000127821.pdfTexto completo (inglês)application/pdf307646http://www.lume.ufrgs.br/bitstream/10183/95358/1/000127821.pdfe8982032dd6e4727650cad1f48c47e48MD51TEXT000127821.pdf.txt000127821.pdf.txtExtracted Texttext/plain10276http://www.lume.ufrgs.br/bitstream/10183/95358/2/000127821.pdf.txt9372109e5bd3b1325c72432d4d50badfMD52THUMBNAIL000127821.pdf.jpg000127821.pdf.jpgGenerated Thumbnailimage/jpeg1545http://www.lume.ufrgs.br/bitstream/10183/95358/3/000127821.pdf.jpg48c75aa83a7131537e989f1351de32b1MD5310183/953582023-08-27 03:43:54.667626oai:www.lume.ufrgs.br:10183/95358Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-27T06:43:54Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Electrical Resistance and Crystallization Characteristics of Fe/Sub 80/B/Sub 20/a |
title |
Electrical Resistance and Crystallization Characteristics of Fe/Sub 80/B/Sub 20/a |
spellingShingle |
Electrical Resistance and Crystallization Characteristics of Fe/Sub 80/B/Sub 20/a Baibich, Mario Norberto Física da matéria condensada Condutividade elétrica Cristalização Medidas fisicas Ligas amorfas Vidros metalicos |
title_short |
Electrical Resistance and Crystallization Characteristics of Fe/Sub 80/B/Sub 20/a |
title_full |
Electrical Resistance and Crystallization Characteristics of Fe/Sub 80/B/Sub 20/a |
title_fullStr |
Electrical Resistance and Crystallization Characteristics of Fe/Sub 80/B/Sub 20/a |
title_full_unstemmed |
Electrical Resistance and Crystallization Characteristics of Fe/Sub 80/B/Sub 20/a |
title_sort |
Electrical Resistance and Crystallization Characteristics of Fe/Sub 80/B/Sub 20/a |
author |
Baibich, Mario Norberto |
author_facet |
Baibich, Mario Norberto Muir, W.B. Van Wyck, D.R. |
author_role |
author |
author2 |
Muir, W.B. Van Wyck, D.R. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Baibich, Mario Norberto Muir, W.B. Van Wyck, D.R. |
dc.subject.por.fl_str_mv |
Física da matéria condensada Condutividade elétrica Cristalização Medidas fisicas Ligas amorfas Vidros metalicos |
topic |
Física da matéria condensada Condutividade elétrica Cristalização Medidas fisicas Ligas amorfas Vidros metalicos |
description |
The electrical resistance of amorphous Fe80B20 has been measured as a function of time at various temperatures during an isothermal crystallization process. The results fit a universal curve when ∆R/∆R1 is plotted against t/t1. The value of t, as a function of annealing temperature fits the Johnson-Mehl-Avra:ni equation with n = 3 changing to 1.4 for t/t1 > 1.4. The resistance of a series of partially crystallized samples was measured between 4.2 and 300 K. dR/dT at 300 K and dR/dlogT below the resistance minimum were both found to be linear funtions of ∆R/∆R1. That is, both the above quantities were found to be strictly proportional to the amount of crystalline phase present. This may pose some difficulty for the structural tunneling model of the low temperature resistance minimum in metallic glasses. |
publishDate |
1981 |
dc.date.issued.fl_str_mv |
1981 |
dc.date.accessioned.fl_str_mv |
2014-05-17T02:06:52Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/95358 |
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0021-8979 |
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000127821 |
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0021-8979 000127821 |
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http://hdl.handle.net/10183/95358 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of Applied Physics. Woodbury. Vol. 52, n. 3, part II (Mar. 1981), p. 1886-1888 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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