Phase diagram and enhanced piezoelectricity in the strontium titanate doped potassium–sodium niobate solid solution | Zendy

Wang Ruiping | Zendy; Xie RongJun | Zendy; Hanada Kotaro | Zendy; Matsusaki Kunio | Zendy; Bando Hiroshi | Zendy; Itoh Mitsuru | Zendy

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Phase diagram and enhanced piezoelectricity in the strontium titanate doped potassium–sodium niobate solid solution

Author(s) -

Wang Ruiping,

Xie RongJun,

Hanada Kotaro,

Matsusaki Kunio,

Bando Hiroshi,

Itoh Mitsuru

Publication year - 2005

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200510014

Subject(s) - phase boundary , materials science , piezoelectricity , phase diagram , dielectric , orthorhombic crystal system , potassium niobate , solid solution , tetragonal crystal system , ceramic , doping , analytical chemistry (journal) , phase (matter) , titanate , strontium , ferroelectricity , mineralogy , chemistry , composite material , crystal structure , crystallography , optoelectronics , organic chemistry , metallurgy

The dielectric and the piezoelectric properties of the (1– x )(Na 0.5 K 0.5 )NbO 3 – x SrTiO 3 ceramics, densified by the Spark‐Plasma‐Sintering method, have been studied. A phase diagram was established from the temperature dependence of the dielectric constant. A tetragonal–orthorhombic morpho‐tropic phase boundary (MPB) was found at x ∼ 0.05. Around the MPB, piezoelectric properties were greatly improved. The origin for the enhanced piezoelectricity has been proposed. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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