Synthesis of Lead Nickel Niobate-Lead Zirconate Titanate Solid Solutions by a B-site Precursor Method
| Autor: | M.D. Maeder, G. Robert, Dragan Damjanovic, Nava Setter |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Materials science
ferroelectrics Inorganic chemistry chemistry.chemical_element ceramics system Lead zirconate titanate piezoelectric properties Titanate Zirconate law.invention chemistry.chemical_compound Nickel chemistry law magnesium niobate Materials Chemistry Ceramics and Composites Calcination Electroceramics Lead oxide Solid solution |
| Zdroj: | Journal of the American Ceramic Society. 84:2869-2872 |
| ISSN: | 1551-2916 0002-7820 |
| DOI: | 10.1111/j.1151-2916.2001.tb01107.x |
| Popis: | A modified processing method for lead nickel niobate-lead zirconate titanate (Pb(Ni1/3Nb2/3)O-3-Pb(Zr,Ti)O-3, PNN-PZT) solid solutions is presented. This method is based on the high-temperature synthesis of a precursor that contains all the B-site cations (Ti, Zr, Ni, and Nb). This synthesis yields a diphasic mixture that contains a ZrTiO4-like phase and a rutile-like phase. Both phases exhibit a cationic valence of 4; thus, it is concluded that the mixing of Ni and Nb cations is adequate for the preparation of PNN-PZT solid solutions. Indeed, a pure perovskite phase has been obtained after calcination with lead oxide for compositions that contain 40 and 50 mol% PNN. Moreover, their electromechanical properties have been shown to be superior to values reported for standard columbite routes. This conclusion has been interpreted in terms of enhanced chemical homogeneity. |
| Databáze: | OpenAIRE |
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