Temperature driven nano-domain evolution in lead-free Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}-50(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} piezoceramics

Journal Article · Mon Jul 21 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4891756· OSTI ID:22311154

Lu, Shengbo; Xu, Zhengkui ^[1]; Su, Shi; Zuo, Ruzhong ^[2]

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1. Department of Physics and Materials Science, City University of Hong Kong, Kowloon, 83 Tat Chee Avenue, Kowloon, Hong Kong (China)
2. Institute of Electro Ceramics and Devices, School of Materials Science and Engineering, Hefei Unviersity of Technology, Tunxi Road 193, Hefei 230009 (China)

Hierarchical micro- and nanoscale domain structures in Pb-free Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}-50(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} piezoceramics were investigated by transmission electron microscopy. In situ heating and cooling studies of domain structure evolution reveal an irreversible domain transformation from a wedge-shaped rhombohedral nanodomain structure to a lamellar tetragonal domain structure, which could be associated with strong piezoelectricity in Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}-50(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} piezoceramics.

• OSTI ID: 22311154
• Journal Information: Applied Physics Letters, Vol. 105, Issue 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CERAMICS
COOLING
DOMAIN STRUCTURE
HEATING
NANOSTRUCTURES
PIEZOELECTRICITY
TITANATES
TITANIUM OXIDES
TRANSFORMATIONS
TRANSMISSION ELECTRON MICROSCOPY
TRIGONAL LATTICES
ZIRCONIUM OXIDES