Ferroelectricity in (Hf, Zr)-doped barium titanate ceramics

Ferroelectricity in (Hf, Zr)-doped barium titanate ceramics

Ferroelectric properties of 9% mol (Hf, Zr) - doped BaTiO sub(3) ceramics are studied by comparison with those of tetragonal pure BaTiO sub(3) ceramics. A shift of the rhombohedral-orthorhombic and orthorhombic-tetragonal transition temperatures above 0 degree C and a decreasing of tetragonal-cubic...

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Veröffentlicht in:Ferroelectrics 2000-01, Vol.239 (1-4), p.1135-1142
Hauptverfasser: Tura, Vasile, Mitoseriu, Liliana, Harnagea, Catalin, Ricinschi, Dan
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container_title Ferroelectrics
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creator Tura, Vasile
Mitoseriu, Liliana
Harnagea, Catalin
Ricinschi, Dan
description Ferroelectric properties of 9% mol (Hf, Zr) - doped BaTiO sub(3) ceramics are studied by comparison with those of tetragonal pure BaTiO sub(3) ceramics. A shift of the rhombohedral-orthorhombic and orthorhombic-tetragonal transition temperatures above 0 degree C and a decreasing of tetragonal-cubic transition temperature from 122 degree C to 95 degree C on heating and from 120 degree C to 85 degree C on cooling is observed in doped BaTiO sub(3) ceramics. Ageing of low field dielectric constant and losses in doped ceramics depends on temperature according to the phase symmetry.
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title Ferroelectricity in (Hf, Zr)-doped barium titanate ceramics
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