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dc.contributor.authorSenes, Nina .
dc.contributor.authorIacomini, Antonio .
dc.contributor.authorDomingo, Neus .
dc.contributor.authorEnzo, Stefano
dc.contributor.authorMulas, Gabriele
dc.contributor.authorCuesta López, Santiago 
dc.contributor.authorGarroni, Sebastiano 
dc.date.accessioned2019-02-05T10:06:56Z
dc.date.issued2018-08
dc.identifier.issn1862-6300
dc.identifier.urihttp://hdl.handle.net/10259/5056
dc.description.abstractDue to the ever‐increasing restrictions connected to the use of toxic lead‐based materials, the developing of lead‐free piezoceramics has become one of the most urgent tasks. In this context, potassium sodium niobate materials (KNN) have attracted a lot of interest as promising candidates due to their excellent piezo properties. For this reason, many efforts have been addressed to optimize the synthesis process now suffering by several drawbacks including the high volatilization of potassium and sodium at the conventional high temperature treatments and the use of expensive metal precursors. To overcome these issues, a new modified Pechini method to synthesize single phase K0.5Na0.5NbO3 powders, from water soluble metal precursors, is presented. Microstructural and structural parameters are characterized by X‐ray diffraction (XRD). Depending on the amount of citric acid added to the starting reagents, two pure single‐phase K0.5Na0.5NbO3 (2 g citric acid) and K0.3Na0.7NbO3 (0.2 g citric acid), respectively, are obtained with a good crystallinity at a moderate temperature of 500 °C. The piezo responses of the as calcined systems are tested by piezoresponse force microscopy (PFM). K0.5Na0.5NbO3 exhibits a much higher response with respect to the other phase, which relates to the larger crystallinity and to the chemical composition.en
dc.description.sponsorshipH2020-MSCA-IF-2015 grantnumber #70795. panishMinisterio de Economía y Competitividad (MINECO) under projectFIS2015-73932-JIN. ICN2 acknowledges support from the Severo OchoaProgram (MINECO, Grant No. SEV-2013-0295en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherWileyen
dc.relation.ispartofPhysica status solidi (a). 2018, V. 215, n. 16, 1700921en
dc.subjectmodified‐pechini methoden
dc.subjectead-free piezoceramicsen
dc.subjectpiezoresponse forcemicroscopen
dc.subjectpotassium sodium niobateen
dc.subjectX-ray diffractionen
dc.subject.otherFísicaes
dc.subject.otherPhysicsen
dc.titleLocal Piezoelectric Behavior of Potassium Sodium Niobate Prepared by a Facile Synthesis via Water Soluble Precursorsen
dc.typeinfo:eu-repo/semantics/article
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.relation.publisherversionhttps://doi.org/10.1002/pssa.201700921
dc.identifier.doi10.1002/pssa.201700921
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/70795
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/FIS2015‐73932‐JIN
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/SEV-2013-029
dc.type.hasVersioninfo:eu-repo/semantics/submittedVersionen


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