Temperature driven nano-domain evolution in lead-free Ba(Zr0.2Ti0.8)O3-50(Ba0.7Ca0.3)TiO3 piezoceramics

Temperature driven nano-domain evolution in lead-free Ba(Zr0.2Ti0.8)O3-50(Ba0.7Ca0.3)TiO3 piezoceramics

Hierarchical micro- and nanoscale domain structures in Pb-free Ba(Zr0.2Ti0.8)O3-50(Ba0.7Ca0.3)TiO3 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 r...

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Veröffentlicht in:Applied physics letters 2014-07, Vol.105 (3)
Hauptverfasser: Lu, Shengbo, Xu, Zhengkui, Su, Shi, Zuo, Ruzhong
Format: Artikel
Sprache:eng
Schlagworte:
Applied physics
Evolution
Lamellar structure
Lead free
Piezoelectric ceramics
Piezoelectricity
Transmission electron microscopy
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Zusammenfassung:Hierarchical micro- and nanoscale domain structures in Pb-free Ba(Zr0.2Ti0.8)O3-50(Ba0.7Ca0.3)TiO3 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(Zr0.2Ti0.8)O3-50(Ba0.7Ca0.3)TiO3 piezoceramics.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4891756