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Open Access Influences of Sintering Temperature on Structure and Properties of BiYbO3–PbTiO3–PbZrO3 Ternary Piezoelectric Ceramics

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0.55(0.1BiYbO3–0.9PbTiO3)–0.45PbZrO3+0.2%La2O3(BY–PT–PZ–La0.2) piezoelectric ceramic was synthesized by a conventional solid-phase sintering. The influence of sintering temperature on the crystalline phase, microstructure and electrical properties of the ceramics was investigated. All the ceramics sintered at 1 080–1 220 possess a perovskite host phase with the tetragonal symmetry. The relative density and dielectric constant εr increase initially and then decrease with raising sintering temperature. The optimum values of the relative density and dielectric constant εr at 1 130 are 97.58% and 1 068, respectively, in an increased c/a ratio range from 1.024 to 1.031 and in a TC range from 379 to 385 . The optimized piezoelectric properties, i.e., d33 = 276 pC/N, Tc = 382 , kp = 49.73%, Pr = 14.15 μC/cm2, tan δ = 0.023 were also obtained at 1 130 due to the combined effect of the higher density, the lower c/a ratio as well as a small amount of ZrO2 impurity.

Keywords: electrical property; lead titanate; lead zirconate; piezoelectric ceramics; solid-phase sintering

Document Type: Research Article


Affiliations: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

Publication date: 2013-12-01

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  • Journal of the Chinese Ceramic Society (JCCS), published in Chinese and in English, is a comprehensive monthly periodical focused on the fields of inorganic and non-metallic materials. The main purpose of the JCCS is to report the latest creative achievements in research, production and design for ceramics, glass, cementing materials, refractory, artificial crystals and other non-metallic materials. JCCS is regarded as an important journal in inorganic and non-metallic materials sciences in China and has been awarded by China Association for Science and Technology. The full-text of papers in JCCS is also published by CNKI (China National Knowledge Infrastructure). JCCS is indexed in EI Compendex, CA( Chemical Abstracts) ,SA and Ж and more than 20 databases.
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