钾钠铌酸钾无铅陶瓷的优异压电性能。
Superior Piezoelectric Properties in Potassium-Sodium Niobate Lead-Free Ceramics.
机构信息
Department of Materials Science, Sichuan University, 610064, Chengdu, P. R. China.
Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 239955, Kingdom of Saudi Arabia.
出版信息
Adv Mater. 2016 Oct;28(38):8519-8523. doi: 10.1002/adma.201601859. Epub 2016 Jul 21.
A superior piezoelectric coefficient (d = 570 ± 10 pC N ), the highest value reported to date in potassium-sodium niobate-based ceramics, is obtained in (1-x-y)K Na Nb Sb O BaZrO - Bi K HfO ceramics. This high d 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.
在（1-x-y）KNaNbSbO-BaZrO-BiK(HfO)陶瓷中获得了优异的压电系数（d=570±10 pC N），这是迄今为止在钾钠铌酸盐基陶瓷中报道的最高值。这种高 d 值可归因于“纳米尺度应变畴”（1-2nm）和高密度铁电畴界的共存。因此，基于三元 KNN 的陶瓷具有应用潜力。
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