Dielectric, Ferroelectric, and Piezoelectric Properties of Mn-Doped K0.5Na0.5NbO3 Lead-Free Ceramics

被引:0
作者
Rigoberto Lopez-Juarez
Virginia Gomez-Vidales
M.P. Cruz
M.E. Villafuerte-Castrejon
机构
[1] Universidad Nacional Autónoma de México,Unidad Morelia del Instituto de Investigaciones en Materiales
[2] Universidad Nacional Autónoma de México,Instituto de Química
[3] Universidad Nacional Autónoma de México,Centro de Nanociencias y Nanotecnología
[4] Universidad Nacional Autónoma de México,Instituto de Investigaciones en Materiales
来源
Journal of Electronic Materials | 2015年 / 44卷
关键词
Ferroelectricity; piezoelectricity; x-ray diffraction; Raman spectroscopy; lead-free ferroelectrics;
D O I
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中图分类号
学科分类号
摘要
In this work, study of manganese-doped potassium-sodium niobate ceramics was performed. It was found that, with increasing Mn2+ content from 1 mol.% to 1.5 mol.%, the Qm changed from 60 to near 500 with no appreciable detriment in piezoelectric properties. These properties first increased with 0.5 mol.%, and remained almost constant with 1 mol.% of manganese. Maximum values for d33, d31, and kp were 120 pC N−1, 33 pC N−1, and 36%, respectively. Thus, manganese-doped K0.5Na0.5NbO3 ceramics represent an option for high-power applications.
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页码:2862 / 2868
页数:6
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