Development of a new thermoelectric Bi2Ca2Co 1.7Ox + Ca3Co4O9 composite

Bi2Ca2Co1.7Ox nominal composition ceramic rods were textured by the electrically assisted laser floating zone technique. A new composite formed by three phases, two of them with well-known thermoelectric properties, Bi2Ca2Co 1.7Ox and Ca3Co4O9, was obtained for the first time when the growth process...

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Autores: Rasekh, Sh., Ferreira, Nuno M., Costa, F. M., Constantinescu, G., Madre, M. A., Torres, M. A., Diez, J. C., Sotelo, Andres
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/117948
Acceso en línea:http://hdl.handle.net/10261/117948
Access Level:acceso abierto
Palabra clave:Electroceramics
Directional solidification
Cobaltites
Thermoelectric materials
Electrical resistivity
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spelling Development of a new thermoelectric Bi2Ca2Co 1.7Ox + Ca3Co4O9 composite Rasekh, Sh. Ferreira, Nuno M. Costa, F. M. Constantinescu, G. Madre, M. A. Torres, M. A. Diez, J. C. Sotelo, Andres Electroceramics Directional solidification Cobaltites Thermoelectric materials Electrical resistivity Bi2Ca2Co1.7Ox nominal composition ceramic rods were textured by the electrically assisted laser floating zone technique. A new composite formed by three phases, two of them with well-known thermoelectric properties, Bi2Ca2Co 1.7Ox and Ca3Co4O9, was obtained for the first time when the growth process was performed with a 300 mA applied current. Under these conditions the thermoelectric performances of this new composite reach values above the highest ones reported in the literature for polycrystalline Bi2Ca2Co1.7Ox materials. © 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. This work was supported by the cooperation projects E-41/11 and AIB2010-PT-00247. S.R. acknowledges a JAEPre-2010 fellowship from the CSIC. A.S., M.A.M., J.C.D. and Sh.R. acknowledge funding from the Gobierno de Aragon (Grupos de Investigacion consolidados T12 and T87). The authors acknowledge the financial support from the Portuguese Science and Technology Foundation (FCT) through the program PEst-C/CTM/LA0025/2011. Peer Reviewed Elsevier http://hdl.handle.net/10261/117948
title Development of a new thermoelectric Bi2Ca2Co 1.7Ox + Ca3Co4O9 composite
spellingShingle Development of a new thermoelectric Bi2Ca2Co 1.7Ox + Ca3Co4O9 composite
Rasekh, Sh.
Electroceramics
Directional solidification
Cobaltites
Thermoelectric materials
Electrical resistivity
title_short Development of a new thermoelectric Bi2Ca2Co 1.7Ox + Ca3Co4O9 composite
title_full Development of a new thermoelectric Bi2Ca2Co 1.7Ox + Ca3Co4O9 composite
title_fullStr Development of a new thermoelectric Bi2Ca2Co 1.7Ox + Ca3Co4O9 composite
title_full_unstemmed Development of a new thermoelectric Bi2Ca2Co 1.7Ox + Ca3Co4O9 composite
title_sort Development of a new thermoelectric Bi2Ca2Co 1.7Ox + Ca3Co4O9 composite
author Rasekh, Sh.
author_facet Rasekh, Sh.
Ferreira, Nuno M.
Costa, F. M.
Constantinescu, G.
Madre, M. A.
Torres, M. A.
Diez, J. C.
Sotelo, Andres
author_role author
author2 Ferreira, Nuno M.
Costa, F. M.
Constantinescu, G.
Madre, M. A.
Torres, M. A.
Diez, J. C.
Sotelo, Andres
author2_role author
author
author
author
author
author
author
topic Electroceramics
Directional solidification
Cobaltites
Thermoelectric materials
Electrical resistivity
topic_facet Electroceramics
Directional solidification
Cobaltites
Thermoelectric materials
Electrical resistivity
description Bi2Ca2Co1.7Ox nominal composition ceramic rods were textured by the electrically assisted laser floating zone technique. A new composite formed by three phases, two of them with well-known thermoelectric properties, Bi2Ca2Co 1.7Ox and Ca3Co4O9, was obtained for the first time when the growth process was performed with a 300 mA applied current. Under these conditions the thermoelectric performances of this new composite reach values above the highest ones reported in the literature for polycrystalline Bi2Ca2Co1.7Ox materials. © 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
publishDate 2014
format article
status_str submittedVersion
url http://hdl.handle.net/10261/117948
eu_rights_str_mv openAccess
publisher Elsevier
institution Consejo Superior de Investigaciones Científicas (CSIC)
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
_version_ 1878440736579387392
publishDateSort 2014
author_browse Constantinescu, G.
Costa, F. M.
Diez, J. C.
Ferreira, Nuno M.
Madre, M. A.
Rasekh, Sh.
Sotelo, Andres
Torres, M. A.
publisherStr Elsevier
score 6,924472

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