Phase transition behaviour and electrical properties of lead-free (K 0.5Na0.5)NbO3-LiNbO3-LiSbO 3 piezoelectric ceramics

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dc.contributor.authorMuanghlua, Rangson
dc.contributor.authorNiemcharoen, Surasak
dc.contributor.authorSutapun, Manoon
dc.contributor.authorBoonchom, Banjong
dc.contributor.authorVittayakorn, Naratip
dc.date.accessioned2026-08-06T10:02:10Z
dc.date.available2026-08-06T10:02:10Z
dc.date.issued2011-05-01
dc.description.abstractThe ternary system of 0.945(K<inf>0.5</inf>Na<inf>0.5</inf>NbO <inf>3</inf>)-(0.055 - x)LiNbO<inf>3</inf>-xLiSbO<inf>3</inf> [0.945KNN-(0.055 - x)LN-xLS]; x = 0.0-0.055 lead-free piezoelectric ceramics was fabricated by the conventional mixed oxide method with normal sintering. The crystal structure was studied by means of X-ray diffraction (XRD). The results of XRD patterns show that complete solid solutions of the mixed phase between the orthorhombic and tetragonal perovskite phase were observed. The DSC and dielectric data show that the amount of LiSbO<inf>3</inf> in K<inf>0.5</inf>Na<inf>0.5</inf>NbO <inf>3</inf>-LiNbO<inf>3</inf> solid solution slightly decreases the paraelectric cubic-ferroelectric tetragonal phase transition (T<inf>C</inf>) to a low temperature. Furthermore, good dielectric and piezoelectric properties were observed at composition, x = 0.03. The polymorphic phase transition between the orthorhombic and tetragonal phases plays a very important role in enhancement of the piezoelectric properties of KNN-LN-LS ceramics. © 2010 Elsevier B.V. All rights reserved.
dc.identifier.citationCurrent Applied Physics, 11(3), 434-437, 2011
dc.identifier.doi10.1016/j.cap.2010.08.015
dc.identifier.issn15671739
dc.identifier.other2-s2.0-79951679562
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/3589
dc.sourceCurrent Applied Physics
dc.subject(K 0.5Na0.5)NbO3
dc.subjectDielectric properties
dc.subjectLead-free piezoelectric
dc.subjectLiNbO3
dc.subjectLiSbO 3
dc.subjectPerovskite structure
dc.titlePhase transition behaviour and electrical properties of lead-free (K 0.5Na0.5)NbO3-LiNbO3-LiSbO 3 piezoelectric ceramics
dc.typeArticle

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