Structural and electrical properties of NBT–BT0.08 ceramic prepared by the pyrosol method

Structural and electrical properties of NBT–BT0.08 ceramic prepared by the pyrosol method

[(Bi0.5Na0.5)TiO3]0.92–[BaTiO3]0.08 lead free piezoelectric materials were prepared by the pyrosol method. The as-obtained powder shows spherical grains of various sizes, composed of crystallites of about 10nm. NBT–BT0.08 ceramic obtained at 700°C show rhombohedral NBT as the main phase and traces o...

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Veröffentlicht in:Ceramics international 2013-07, Vol.39 (5), p.5925-5930
Hauptverfasser: Ghitulica, Cristina, Cernea, Marin, Stefan Vasile, Bogdan, Andronescu, Ecaterina, Ruxandra Vasile, Otilia, Dragoi, Cristina, Trusca, Roxana
Format: Artikel
Sprache:eng
Schlagworte:
A. Pyrosol processes
C. Dielectric properties
C. Piezoelectric properties
Ceramic powders
Ceramics
Crystallites
D. BaTiO3 and titanates
Dielectric properties
Electrical properties
Ferroelectric materials
Ferroelectricity
Piezoelectric ceramics
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Zusammenfassung:[(Bi0.5Na0.5)TiO3]0.92–[BaTiO3]0.08 lead free piezoelectric materials were prepared by the pyrosol method. The as-obtained powder shows spherical grains of various sizes, composed of crystallites of about 10nm. NBT–BT0.08 ceramic obtained at 700°C show rhombohedral NBT as the main phase and traces of hexagonal Bi2O3 as secondary phase. The ceramics prepared from this powder and sintered at 1000 and 1100°C are single phase with good dielectric and ferroelectric properties.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2013.01.015