Superior Piezoelectric Properties in Potassium–Sodium Niobate Lead‐Free Ceramics

descriptionPublicationkeyboard_double_arrow_right Article 21 Jul 2016 Saudi Arabia English Publisher:WileyJournal:Advanced Materials, volume 28, pages 8,519-8,523 (issn: 0935-9648, eissn: 1521-4095,

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Authors: Xu, Kai; Li, Jun; Lv, Xiang; Wu, Jiagang; Zhang, Xixiang; Xiao, Dingquan; Zhu, Jianguo;

doi: 10.1002/adma.201601859

pmid: 27441456

handle: 10754/621582

Superior Piezoelectric Properties in Potassium–Sodium Niobate Lead‐Free Ceramics

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Abstract

A superior piezoelectric coefficient (d33 = 570 ± 10 pC N"1 ), the highest value reported to date in potassium-sodium niobate-based ceramics, is obtained in (1-x-y)K1-w Naw Nb1-z Sbz O3-y BaZrO3-x - Bi0.5 K0.5 HfO3 ceramics. This high d33 value can be ascribed to the co-existence of "nano-scale strain domains" (1-2 nm) and a high density of ferroelectric domain boundaries. Therefore, ternary KNN-based ceramics demonstrate the potential for applications.

Country

Saudi Arabia

Related Organizations

Sichuan University
China (People's Republic of)
King Abdullah University of Science and Technology
Saudi Arabia

Keywords

(K,Na)NbO 3

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