Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1461468 | Ceramics International | 2014 | 6 Pages |
Abstract
Li/Ta/Sb co-doped lead-free (K0.4425Na0.52Li0.0375)(Nb0.93−xTaxSb0.07)O3 (abbreviated KNLNSTx) piezoelectric ceramics, with Ta-doping ratio of x ranging from 0.0275 to 0.0675, were synthesized using the conventional solid-state reaction method at the sintering temperature of 1130 °C. The effects of Ta content on the microstructure, dielectric properties, and phase transition behavior of the prepared ceramics were systematically investigated. The X-ray diffraction results show that all KNLNSTx ceramics formed a secondary phase, which is assigned to the tetragonal tungsten-bronze type (TTB) structure phase, and showed a phase transition from an orthorhombic symmetry to a tetragonal symmetry across a composition region of 0.0375
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Physical Sciences and Engineering
Materials Science
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Authors
Shaohua Qian, Kongjun Zhu, Xuming Pang, Jinsong Liu, Jinhao Qiu, Jianzhou Du,