Pb(Zn1/3Ta2/3)O3–PbTiO3 Derived from Mechanical Activation
Nanocrystalline Pb(Zn1/3Ta2/3)O3 (PZTa) of perovskite structure, which cannot be synthesized by either the conventional solid-state reaction of mixed oxides or wet chemistry routes, has been successfully synthesized via a mechanical activation route. The effects of PbTiO3 (PT) doping in PZTa on the phase formation, thermal stability of the nanocrystalline perovskite phase, and dielectric properties of the resulting PZTa–PT are studied. PZTa doped with a low PT content exhibited a diffuse phase transition, while those with high PT contents demonstrated an expected sharp phase transition at the Curie temperature.
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Document Type: Research Article
Affiliations: Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore
Publication date: 2006-09-01