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Large Piezoelectric Coefficient in (Ba1−xCax)(Ti0.96Sn0.04)O3 Lead-Free Ceramics (2011)

Wei Li; Zhijun Xu; Ruiqing Chu; Peng Fu; Guozhong Zang

Wiley

In: Journal of the American Ceramic Society

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Publication Date: 2011-10-14

Description: Lead-free ( Ba 1− x Ca x )( Ti 0.96 Sn 0.04 ) O 3 (BCST) ( x = 0–0.04) ceramics were prepared using solid-state reaction technique. At room temperature, a polymorphic phase transition from orthorhombic phase to tetragonal phase was identified in the composition range of 0.01 ≤ x ≤ 0.03. Extremely high piezoelectric coefficient of d 33 = 510 pC/N and high planar electromechanical coupling factor of k p = 48% were obtained for the BCST ceramics at x = 0.02. These results indicate that the BCSTs are promising candidates for the widely used lead-based piezoelectric materials.

Print ISSN: 0002-7820

Electronic ISSN: 1551-2916

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Published by Wiley

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