Spark plasma texturing (SPT) of p-type [Ca2CoO3]0.62[CoO2] thermoelectric oxide
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jallcom.2016.03.063 http://hdl.handle.net/11449/168522 |
Resumo: | Hole-doped [Ca2CoO3]0.62[CoO2] (Co349) thermoelectric materials were densified and textured by spark plasma sintering (SPS) process. Thin pre-sintered Co349 lamellar samples were used to process textured monoliths. The textured thin monoliths were further used in obtaining samples with increased thickness for anisotropic property studies by hot-stacking as multiple layers. Infrared measurements were used to investigate the presence of carbon diffused from the SPS tool into the bulk of the sample. The phase compositions, grain texture, as well as microstructure of the samples were analyzed by X-ray diffraction and SEM studies. The high temperature thermoelectric transport properties of the bulk samples and the correlation between the grain orientations, structural and anisotropy of thermoelectric properties were discussed in detail. The textured sample processed by SPT shows the power factor value of 450 μW m-1 K-2 at 600 °C which is 30% higher than the corresponding value for SPS one and eight times larger than samples conventionally sintered. |
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Spark plasma texturing (SPT) of p-type [Ca2CoO3]0.62[CoO2] thermoelectric oxideCalcium cobaltateGrain growthP-type thermoelectric oxide materialSpark plasma sintering-TexturationHole-doped [Ca2CoO3]0.62[CoO2] (Co349) thermoelectric materials were densified and textured by spark plasma sintering (SPS) process. Thin pre-sintered Co349 lamellar samples were used to process textured monoliths. The textured thin monoliths were further used in obtaining samples with increased thickness for anisotropic property studies by hot-stacking as multiple layers. Infrared measurements were used to investigate the presence of carbon diffused from the SPS tool into the bulk of the sample. The phase compositions, grain texture, as well as microstructure of the samples were analyzed by X-ray diffraction and SEM studies. The high temperature thermoelectric transport properties of the bulk samples and the correlation between the grain orientations, structural and anisotropy of thermoelectric properties were discussed in detail. The textured sample processed by SPT shows the power factor value of 450 μW m-1 K-2 at 600 °C which is 30% higher than the corresponding value for SPS one and eight times larger than samples conventionally sintered.LUSAC EA 4253 UNICAEN, Rue AragonCRISMAT UMR 6508-CNRS UNICAEN, 6Bd Maréchal JuinFac de Ciências e Tecnologia-FCT Univ Estadual Paulista - UNESP, P.O Box 467Fac de Ciências e Tecnologia-FCT Univ Estadual Paulista - UNESP, P.O Box 467UNICAENUniversidade Estadual Paulista (Unesp)Noudem, J. G.Retoux, R.Lanfredi, S. [UNESP]2018-12-11T16:41:38Z2018-12-11T16:41:38Z2016-08-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article499-504application/pdfhttp://dx.doi.org/10.1016/j.jallcom.2016.03.063Journal of Alloys and Compounds, v. 676, p. 499-504.0925-8388http://hdl.handle.net/11449/16852210.1016/j.jallcom.2016.03.0632-s2.0-849621911552-s2.0-84962191155.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Alloys and Compounds1,020info:eu-repo/semantics/openAccess2023-10-10T06:04:59Zoai:repositorio.unesp.br:11449/168522Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-10T06:04:59Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Spark plasma texturing (SPT) of p-type [Ca2CoO3]0.62[CoO2] thermoelectric oxide |
title |
Spark plasma texturing (SPT) of p-type [Ca2CoO3]0.62[CoO2] thermoelectric oxide |
spellingShingle |
Spark plasma texturing (SPT) of p-type [Ca2CoO3]0.62[CoO2] thermoelectric oxide Noudem, J. G. Calcium cobaltate Grain growth P-type thermoelectric oxide material Spark plasma sintering-Texturation |
title_short |
Spark plasma texturing (SPT) of p-type [Ca2CoO3]0.62[CoO2] thermoelectric oxide |
title_full |
Spark plasma texturing (SPT) of p-type [Ca2CoO3]0.62[CoO2] thermoelectric oxide |
title_fullStr |
Spark plasma texturing (SPT) of p-type [Ca2CoO3]0.62[CoO2] thermoelectric oxide |
title_full_unstemmed |
Spark plasma texturing (SPT) of p-type [Ca2CoO3]0.62[CoO2] thermoelectric oxide |
title_sort |
Spark plasma texturing (SPT) of p-type [Ca2CoO3]0.62[CoO2] thermoelectric oxide |
author |
Noudem, J. G. |
author_facet |
Noudem, J. G. Retoux, R. Lanfredi, S. [UNESP] |
author_role |
author |
author2 |
Retoux, R. Lanfredi, S. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
UNICAEN Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Noudem, J. G. Retoux, R. Lanfredi, S. [UNESP] |
dc.subject.por.fl_str_mv |
Calcium cobaltate Grain growth P-type thermoelectric oxide material Spark plasma sintering-Texturation |
topic |
Calcium cobaltate Grain growth P-type thermoelectric oxide material Spark plasma sintering-Texturation |
description |
Hole-doped [Ca2CoO3]0.62[CoO2] (Co349) thermoelectric materials were densified and textured by spark plasma sintering (SPS) process. Thin pre-sintered Co349 lamellar samples were used to process textured monoliths. The textured thin monoliths were further used in obtaining samples with increased thickness for anisotropic property studies by hot-stacking as multiple layers. Infrared measurements were used to investigate the presence of carbon diffused from the SPS tool into the bulk of the sample. The phase compositions, grain texture, as well as microstructure of the samples were analyzed by X-ray diffraction and SEM studies. The high temperature thermoelectric transport properties of the bulk samples and the correlation between the grain orientations, structural and anisotropy of thermoelectric properties were discussed in detail. The textured sample processed by SPT shows the power factor value of 450 μW m-1 K-2 at 600 °C which is 30% higher than the corresponding value for SPS one and eight times larger than samples conventionally sintered. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-08-15 2018-12-11T16:41:38Z 2018-12-11T16:41:38Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.jallcom.2016.03.063 Journal of Alloys and Compounds, v. 676, p. 499-504. 0925-8388 http://hdl.handle.net/11449/168522 10.1016/j.jallcom.2016.03.063 2-s2.0-84962191155 2-s2.0-84962191155.pdf |
url |
http://dx.doi.org/10.1016/j.jallcom.2016.03.063 http://hdl.handle.net/11449/168522 |
identifier_str_mv |
Journal of Alloys and Compounds, v. 676, p. 499-504. 0925-8388 10.1016/j.jallcom.2016.03.063 2-s2.0-84962191155 2-s2.0-84962191155.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Alloys and Compounds 1,020 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
499-504 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964506953089024 |