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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b00669
|2 doi
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|a pubmed24n0866.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Mahajan, Amit
|e verfasserin
|4 aut
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|a Unleashing the Full Sustainable Potential of Thick Films of Lead-Free Potassium Sodium Niobate (K0.5Na0.5NbO3) by Aqueous Electrophoretic Deposition
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|c 2016
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 21.05.2018
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|a Date Revised 21.05.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a A current challenge for the fabrication of functional oxide-based devices is related with the need of environmental and sustainable materials and processes. By considering both lead-free ferroelectrics of potassium sodium niobate (K0.5Na0.5NbO3, KNN) and aqueous-based electrophoretic deposition here we demonstrate that an eco-friendly aqueous solution-based process can be used to produce KNN thick coatings with improved electromechanical performance. KNN thick films on platinum substrates with thickness varying between 10 and 15 μm have a dielectric permittivity of 495, dielectric losses of 0.08 at 1 MHz, and a piezoelectric coefficient d33 of ∼70 pC/N. At TC these films display a relative permittivity of 2166 and loss tangent of 0.11 at 1 MHz. A comparison of the physical properties between these films and their bulk ceramics counterparts demonstrates the impact of the aqueous-based electrophoretic deposition (EPD) technique for the preparation of lead-free ferroelectric thick films. This opens the door to the possible development of high-performance, lead-free piezoelectric thick films by a sustainable low-cost process, expanding the applicability of lead-free piezoelectrics
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Pinho, Rui
|e verfasserin
|4 aut
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|a Dolhen, Morgane
|e verfasserin
|4 aut
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|a Costa, M Elisabete
|e verfasserin
|4 aut
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|a Vilarinho, Paula M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 32(2016), 21 vom: 31. Mai, Seite 5241-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:32
|g year:2016
|g number:21
|g day:31
|g month:05
|g pages:5241-9
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|u http://dx.doi.org/10.1021/acs.langmuir.6b00669
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