Hardening of (Ba0.5Na0.5)0.85Ba0.15TiO3 lead-free piezoelectric ceramics by adding (Bi0.5Na0.5)MnO3
Hardening of (Ba0.5Na0.5)0.85Ba0.15TiO3 lead-free piezoelectric ceramics by adding (Bi0.5Na0.5)MnO3
复制标题
添加(Bi0.5Na0.5)MnO3对(Ba0.5Na0.5)0.85Ba0.15TiO3无铅压电陶瓷进行硬化
DOI：
10.35848/1347-4065/ac564e
复制
发表时间：
2022
影响因子：
1.5
通讯作者：
S. Tanaka
中科院分区：
文献类型：
--
作者：
Y. Doshida;Kosuke Hayakawa;H. Tamura;S. Tanaka
研究了添加Bi0.5Na0.5MnO3（BNM）对（Bi0.5Na0.5）0.85Ba0.15TiO3（BNBT 15）压电陶瓷的硬化作用。BNBT 15-BNM表现出单相的BNBT 15。BNM作为BNBT 15的烧结助剂以产生畴钉扎，并基于BaTiO 3产生四方性以增加稳定性。BNBT 15-BNM硬化低Mn含量的压电材料，提高矫顽场和机械品质因数。BNBT 15-BNM（0.75wt%）的机械品质因数超过1200。在高功率条件下，BNBT 15-BNM（0.75重量%）表现出的振动速度的两倍，硬PZT。随着振动速度的增大，品质因数逐渐减小.等效刚度随应变的增加略有下降，其力学非线性远小于硬压电陶瓷。BNBT 15-BNM（0.75 wt%）具有上级的高功率性能，有望成为高功率无铅压电陶瓷的候选材料。
The hardening of (Bi0.5Na0.5)0.85Ba0.15TiO3 (BNBT15) piezoelectric ceramics was investigated by adding raw materials with Bi0.5Na0.5MnO3 (BNM). BNBT15-BNM exhibited a single phase of BNBT15. BNM acts as a sintering aid for BNBT15 to produce domain pinning, and produces tetragonality based on BaTiO3 for increased stability. BNBT15-BNM hardens piezoelectric material with low Mn content, increasing the coercive field and mechanical quality factor. The mechanical quality factor of BNBT15-BNM (0.75 wt%) exceeded 1200. In high-power conditions, BNBT15-BNM (0.75 wt%) exhibited a vibration velocity twice that of hard-PZT. The quality factor gradually decreased with a high vibration velocity. The equivalent stiffness slightly decreased with strain, and the mechanical nonlinearity was much less than that of hard-PZT. BNBT15-BNM (0.75 wt%) has superior high-power properties, and is expected to be a candidate material for use in lead-free piezoelectric ceramics in high-power applications.