Synthesis and electrical characterization of tungsten doped Pb(Zr0.53Ti0.47)O-3 ceramics obtained from a hybrid process
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Data
2007-06-15
Autores
Santos, D. M.
Simoes, A. Z.
Zaghete, M. A.
Paiva-Santos, C. O.
Varela, José Arana [UNESP]
Longo, Elson [UNESP]
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Editor
Elsevier B.V.
Resumo
Pure and W-doped PZT ceramics (PZT and PZTW) were prepared by a hybrid process consisting in the association of polymeric precursor and partial oxalate methods. The phase formation was investigated by simultaneous thermal analysis (TG/DSC) and X-ray diffraction (XRD). The effect of W doping PZT and their electrical properties was evaluated. Substitution of W by Ti leads to an increase of Curie temperature and broadening of dielectric constant. A typical hysteresis loop was observed at room temperature and the remnant polarization was increased with the content of W. (c) 2007 Elsevier B.V. All rights reserved.
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ceramics, sintering, dielectric properties, ferroelectricity
Como citar
Materials Chemistry and Physics. Lausanne: Elsevier B.V. Sa, v. 103, n. 2-3, p. 371-374, 2007.