Lead-free piezoceramics with giant strain in the system Bi0.5Na0.5TiO3–BaTiO3–K0.5Na0.5NbO3. II. Temperature dependent properties
نویسندگان
چکیده
منابع مشابه
Extrinsic Contribution and Instability Properties in Lead-Based and Lead-Free Piezoceramics
Piezoceramic materials generally exhibit a notable instability of their functional properties when they work under real external conditions. This undesirable effect, known as nonlinear behavior, is mostly associated with the extrinsic contribution to material response. In this article, the role of the ferroelectric domain walls' motion in the nonlinear response in the most workable lead-based a...
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The recent review for the Restriction of Hazardous Substances Directive (RoHS) by the expert committee, appointed by the European Union, stated that the replacement of PZT “... may be scientifically and technologically practical to a certain degree ...”, although replacement “... is scientifically and technically still impractical in the majority of applications.” Thus, two decades of sustained...
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First-principles calculations are performed to investigate the structures, electrical, and magnetic properties of compressive BiFeO3 films under electric-field and pressure perpendicular to the films. A reversible electric-field-induced strain up 10% is achieved in the compressive BiFeO3 films. The giant strain originates from rhombohedral-tetragonal (R-T) phase transition under electric-filed,...
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Lead-free (Ba0.85Ca0.15)[(Zr0.1Ti0.9)]O3 (BCZT) piezoceramics were synthesized using solid-state ceramic processing. In order to improve the electrical properties CeO2 and CuO additives/dopants were used and two methods were employed to introduce theses oxides; one, in which 0.1 mol.% CeO2 was mixed with the raw materials and the composition was balanced for A-site substitution (BCCe0.1ZT) and ...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2008
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.2838476