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.

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Journal

Journal ID (iso-abbrev): Adv. Mater. Weinheim

Title: Advanced materials (Deerfield Beach, Fla.)

Publisher: Wiley

ISSN (Electronic): 1521-4095

ISSN (Print): 0935-9648

Publication date (Electronic): Oct 2016

Volume: 28

Issue: 38

Affiliations

[1 ] Department of Materials Science, Sichuan University, 610064, Chengdu, P. R. China.

[2 ] Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 239955, Kingdom of Saudi Arabia.

[3 ] Department of Materials Science, Sichuan University, 610064, Chengdu, P. R. China. wujiagang0208@163.com, msewujg@scu.edu.cn.

[4 ] Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 239955, Kingdom of Saudi Arabia. xixiang.zhang@kaust.edu.sa.

Article

DOI: 10.1002/adma.201601859

PubMed ID: 27441456

SO-VID: 68fa1c1c-1590-4f2b-a79f-d82bb161c7c2

History

Keywords: nanodomains,phase boundaries,(K,Na)NbO3,giant piezoelectricity

Data availability:

Keywords: nanodomains, phase boundaries, (K,Na)NbO3, giant piezoelectricity

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