Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routes

Detalhes bibliográficos
Autor(a) principal: Eiras, Jose A.
Data de Publicação: 2016
Outros Autores: Gerbasi, Rosimeire B. Z., Rosso, Jaciele M., Silva, Daniel M., Cotica, Luiz F., Santos, Ivair A., Souza, Camila A. [UNIFESP], Lente, Manuel H. [UNIFESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNIFESP
Texto Completo: http://dx.doi.org/10.3390/ma9030179
https://repositorio.unifesp.br/handle/11600/57847
Resumo: Lead free piezoelectric materials are being intensively investigated in order to substitute lead based ones, commonly used in many different applications. Among the most promising lead-free materials are those with modified NaNbO3, such as (K, Na)NbO3 (KNN) and (Ba, Na)(Ti, Nb)O-3 (BTNN) families. From a ceramic processing point of view, high density single phase KNN and BTNN ceramics are very difficult to sinter due to the volatility of the alkaline elements, the narrow sintering temperature range and the anomalous grain growth. In this work, Spark Plasma Sintering (SPS) and high-energy ball milling (HEBM), following heat treatments (calcining and sintering), in oxidative (O-2) atmosphere have been used to prepare single phase highly densified KNN (pure and Cu2+ or Li1+ doped), with theoretical densities (th) > 97% and BTNN ceramics ((th) similar to 90%), respectively. Using BTTN ceramics with a P4mm perovskite-like structure, we showed that by increasing the NaNbO3 content, the ferroelectric properties change from having a relaxor effect to an almost normal ferroelectric character, while the tetragonality and grain size increase and the shear piezoelectric coefficients (k(15), g(15) and d(15)) improve. For KNN ceramics, the results reveal that the values for remanent polarization as well as for most of the coercive field are quite similar among all compositions. These facts evidenced that Cu2+ may be incorporated into the A and/or B sites of the perovskite structure, having both hardening and softening effects.
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spelling Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routeslead-free piezoelectricsferroelectricspiezoelectricsspark plasma sinteringLead free piezoelectric materials are being intensively investigated in order to substitute lead based ones, commonly used in many different applications. Among the most promising lead-free materials are those with modified NaNbO3, such as (K, Na)NbO3 (KNN) and (Ba, Na)(Ti, Nb)O-3 (BTNN) families. From a ceramic processing point of view, high density single phase KNN and BTNN ceramics are very difficult to sinter due to the volatility of the alkaline elements, the narrow sintering temperature range and the anomalous grain growth. In this work, Spark Plasma Sintering (SPS) and high-energy ball milling (HEBM), following heat treatments (calcining and sintering), in oxidative (O-2) atmosphere have been used to prepare single phase highly densified KNN (pure and Cu2+ or Li1+ doped), with theoretical densities (th) > 97% and BTNN ceramics ((th) similar to 90%), respectively. Using BTTN ceramics with a P4mm perovskite-like structure, we showed that by increasing the NaNbO3 content, the ferroelectric properties change from having a relaxor effect to an almost normal ferroelectric character, while the tetragonality and grain size increase and the shear piezoelectric coefficients (k(15), g(15) and d(15)) improve. For KNN ceramics, the results reveal that the values for remanent polarization as well as for most of the coercive field are quite similar among all compositions. These facts evidenced that Cu2+ may be incorporated into the A and/or B sites of the perovskite structure, having both hardening and softening effects.Univ Fed Sao Carlos, Dept Phys, BR-13565905 Sao Carlos, SP, BrazilUniv Estadual Maringa, Dept Phys, Av Colombo 5790, BR-87020900 Maringa, Parana, BrazilUniv Fed Sao Paulo, Inst Sci & Technol, 330 Talim St Vila Nair, BR-12231280 Sao Jose Dos Campos, SP, BrazilUniv Fed Sao Paulo, Inst Sci & Technol, 330 Talim St Vila Nair, BR-12231280 Sao Jose Dos Campos, SP, BrazilWeb of ScienceCNPqFapespCapesCNPq: 446565/2014-8Capes: Procad 88881.068509/2014-01Mdpi Ag2020-08-21T17:00:02Z2020-08-21T17:00:02Z2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion-application/pdfhttp://dx.doi.org/10.3390/ma9030179Materials. Basel, v. 9, n. 3, p. -, 2016.10.3390/ma9030179WOS000373805400003.pdf1996-1944https://repositorio.unifesp.br/handle/11600/57847WOS:000373805400003engMaterialsBaselinfo:eu-repo/semantics/openAccessEiras, Jose A.Gerbasi, Rosimeire B. Z.Rosso, Jaciele M.Silva, Daniel M.Cotica, Luiz F.Santos, Ivair A.Souza, Camila A. [UNIFESP]Lente, Manuel H. [UNIFESP]reponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESP2024-08-09T04:16:55Zoai:repositorio.unifesp.br/:11600/57847Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestbiblioteca.csp@unifesp.bropendoar:34652024-08-09T04:16:55Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false
dc.title.none.fl_str_mv Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routes
title Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routes
spellingShingle Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routes
Eiras, Jose A.
lead-free piezoelectrics
ferroelectrics
piezoelectrics
spark plasma sintering
title_short Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routes
title_full Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routes
title_fullStr Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routes
title_full_unstemmed Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routes
title_sort Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routes
author Eiras, Jose A.
author_facet Eiras, Jose A.
Gerbasi, Rosimeire B. Z.
Rosso, Jaciele M.
Silva, Daniel M.
Cotica, Luiz F.
Santos, Ivair A.
Souza, Camila A. [UNIFESP]
Lente, Manuel H. [UNIFESP]
author_role author
author2 Gerbasi, Rosimeire B. Z.
Rosso, Jaciele M.
Silva, Daniel M.
Cotica, Luiz F.
Santos, Ivair A.
Souza, Camila A. [UNIFESP]
Lente, Manuel H. [UNIFESP]
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Eiras, Jose A.
Gerbasi, Rosimeire B. Z.
Rosso, Jaciele M.
Silva, Daniel M.
Cotica, Luiz F.
Santos, Ivair A.
Souza, Camila A. [UNIFESP]
Lente, Manuel H. [UNIFESP]
dc.subject.por.fl_str_mv lead-free piezoelectrics
ferroelectrics
piezoelectrics
spark plasma sintering
topic lead-free piezoelectrics
ferroelectrics
piezoelectrics
spark plasma sintering
description Lead free piezoelectric materials are being intensively investigated in order to substitute lead based ones, commonly used in many different applications. Among the most promising lead-free materials are those with modified NaNbO3, such as (K, Na)NbO3 (KNN) and (Ba, Na)(Ti, Nb)O-3 (BTNN) families. From a ceramic processing point of view, high density single phase KNN and BTNN ceramics are very difficult to sinter due to the volatility of the alkaline elements, the narrow sintering temperature range and the anomalous grain growth. In this work, Spark Plasma Sintering (SPS) and high-energy ball milling (HEBM), following heat treatments (calcining and sintering), in oxidative (O-2) atmosphere have been used to prepare single phase highly densified KNN (pure and Cu2+ or Li1+ doped), with theoretical densities (th) > 97% and BTNN ceramics ((th) similar to 90%), respectively. Using BTTN ceramics with a P4mm perovskite-like structure, we showed that by increasing the NaNbO3 content, the ferroelectric properties change from having a relaxor effect to an almost normal ferroelectric character, while the tetragonality and grain size increase and the shear piezoelectric coefficients (k(15), g(15) and d(15)) improve. For KNN ceramics, the results reveal that the values for remanent polarization as well as for most of the coercive field are quite similar among all compositions. These facts evidenced that Cu2+ may be incorporated into the A and/or B sites of the perovskite structure, having both hardening and softening effects.
publishDate 2016
dc.date.none.fl_str_mv 2016
2020-08-21T17:00:02Z
2020-08-21T17:00:02Z
dc.type.driver.fl_str_mv 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://dx.doi.org/10.3390/ma9030179
Materials. Basel, v. 9, n. 3, p. -, 2016.
10.3390/ma9030179
WOS000373805400003.pdf
1996-1944
https://repositorio.unifesp.br/handle/11600/57847
WOS:000373805400003
url http://dx.doi.org/10.3390/ma9030179
https://repositorio.unifesp.br/handle/11600/57847
identifier_str_mv Materials. Basel, v. 9, n. 3, p. -, 2016.
10.3390/ma9030179
WOS000373805400003.pdf
1996-1944
WOS:000373805400003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Materials
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv -
application/pdf
dc.coverage.none.fl_str_mv Basel
dc.publisher.none.fl_str_mv Mdpi Ag
publisher.none.fl_str_mv Mdpi Ag
dc.source.none.fl_str_mv reponame:Repositório Institucional da UNIFESP
instname:Universidade Federal de São Paulo (UNIFESP)
instacron:UNIFESP
instname_str Universidade Federal de São Paulo (UNIFESP)
instacron_str UNIFESP
institution UNIFESP
reponame_str Repositório Institucional da UNIFESP
collection Repositório Institucional da UNIFESP
repository.name.fl_str_mv Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)
repository.mail.fl_str_mv biblioteca.csp@unifesp.br
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