Solid state growth of Na(1/2)Bi(1/2)TiO(3)-BaTiO(3) single crystals and their enhanced piezoelectric properties

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High quality 95Na(1/2)Bi(1/2)TiO(3)-5BaTiO(3) (NBT-5BT) single crystals of 10 mm x 10 mm x 3 mm in size were fabricated by the solid state single crystal growth technique involving the sintering of proportioned powder compacts in contact with a seed. Structural studies with X-ray diffraction and Raman spectroscopy revealed that the as-grown single crystals have a rhombohedral (pseudo-cubic) single phase. The (0 0 1)(cubic)-oriented single crystals showed excellent dielectric and piezoelectric properties: epsilon(r) = 723, tan delta = 0.01 (1 kHz at 25 degrees C), d(33)=207 pC/N, and k(33)=0.5. These values are comparable to the best reported properties of melt-grown single crystals. (C) 2011 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2011-02
Language
English
Article Type
Article
Keywords

SODIUM BISMUTH TITANATE; TEMPLATED GRAIN-GROWTH; ELECTRICAL-PROPERTIES; SYSTEM; CERAMICS; (NA1/2BI1/2)TIO3; BEHAVIOR; KINETICS

Citation

JOURNAL OF CRYSTAL GROWTH, v.317, no.1, pp.28 - 31

ISSN
0022-0248
DOI
10.1016/j.jcrysgro.2011.01.023
URI
http://hdl.handle.net/10203/99736
Appears in Collection
MS-Journal Papers(저널논문)
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