Particle characteristics’ influence on FLASH sintering of potassium sodium niobate

Detalhes bibliográficos
Autor(a) principal: Serrazina, Ricardo
Data de Publicação: 2021
Outros Autores: Ribeiro, Camila, Costa, Maria E. V., Pereira, Luis, Vilarinho, Paula M., Senos, Ana M. O. R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/128457
Resumo: POCI-01-0247-FEDER-029078 SFRH/PD/BD/128411/2017
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spelling Particle characteristics’ influence on FLASH sintering of potassium sodium niobateA relationship with conduction mechanismsCeramicsConduction mechanismsFLASH sinteringFLASH temperatureImpuritiesKNaNbOKNNParticle sizeSingle crystalsMaterials Science(all)Condensed Matter PhysicsPOCI-01-0247-FEDER-029078 SFRH/PD/BD/128411/2017The considerable decrease in temperature and time makes FLASH sintering a more sustainable alternative for materials processing. FLASH also becomes relevant if volatile elements are part of the material to be processed, as in alkali‐based piezoelectrics like the promising lead‐free K0.5Na0.5NbO3 (KNN). Due to the volatile nature of K and Na, KNN is difficult to process by conventional sintering. Although some studies have been undertaken, much remains to be understood to properly engineer the FLASH sintering process of KNN. In this work, the effect of FLASH temperature, TF, is studied as a function of the particle size and impurity content of KNN powders. Differences are demonstrated: while the particle size and impurity degree markedly influence TF, they do not significantly affect the densification and grain growth processes. The conductivity of KNN FLASH‐sintered ceramics and KNN single crystals (SCs) is compared to elucidate the role of particles’ surface conduction. When particles’ surfaces are not present, as in the case of SCs, the FLASH process requires higher temperatures and conductivity values. These results have implications in understanding FLASH sintering towards a more sustainable processing of lead‐free piezoelectrics.CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)RUNSerrazina, RicardoRibeiro, CamilaCosta, Maria E. V.Pereira, LuisVilarinho, Paula M.Senos, Ana M. O. R.2021-11-29T23:39:36Z2021-03-092021-03-09T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/128457eng1996-1944PURE: 34472521https://doi.org/10.3390/ma14051321info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:08:01Zoai:run.unl.pt:10362/128457Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:46:18.427383Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Particle characteristics’ influence on FLASH sintering of potassium sodium niobate
A relationship with conduction mechanisms
title Particle characteristics’ influence on FLASH sintering of potassium sodium niobate
spellingShingle Particle characteristics’ influence on FLASH sintering of potassium sodium niobate
Serrazina, Ricardo
Ceramics
Conduction mechanisms
FLASH sintering
FLASH temperature
Impurities
KNaNbO
KNN
Particle size
Single crystals
Materials Science(all)
Condensed Matter Physics
title_short Particle characteristics’ influence on FLASH sintering of potassium sodium niobate
title_full Particle characteristics’ influence on FLASH sintering of potassium sodium niobate
title_fullStr Particle characteristics’ influence on FLASH sintering of potassium sodium niobate
title_full_unstemmed Particle characteristics’ influence on FLASH sintering of potassium sodium niobate
title_sort Particle characteristics’ influence on FLASH sintering of potassium sodium niobate
author Serrazina, Ricardo
author_facet Serrazina, Ricardo
Ribeiro, Camila
Costa, Maria E. V.
Pereira, Luis
Vilarinho, Paula M.
Senos, Ana M. O. R.
author_role author
author2 Ribeiro, Camila
Costa, Maria E. V.
Pereira, Luis
Vilarinho, Paula M.
Senos, Ana M. O. R.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
RUN
dc.contributor.author.fl_str_mv Serrazina, Ricardo
Ribeiro, Camila
Costa, Maria E. V.
Pereira, Luis
Vilarinho, Paula M.
Senos, Ana M. O. R.
dc.subject.por.fl_str_mv Ceramics
Conduction mechanisms
FLASH sintering
FLASH temperature
Impurities
KNaNbO
KNN
Particle size
Single crystals
Materials Science(all)
Condensed Matter Physics
topic Ceramics
Conduction mechanisms
FLASH sintering
FLASH temperature
Impurities
KNaNbO
KNN
Particle size
Single crystals
Materials Science(all)
Condensed Matter Physics
description POCI-01-0247-FEDER-029078 SFRH/PD/BD/128411/2017
publishDate 2021
dc.date.none.fl_str_mv 2021-11-29T23:39:36Z
2021-03-09
2021-03-09T00:00:00Z
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://hdl.handle.net/10362/128457
url http://hdl.handle.net/10362/128457
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1996-1944
PURE: 34472521
https://doi.org/10.3390/ma14051321
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.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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