【摘 要】
：
The 0.6mol％ CuO-doping 0.996(0.95Na0.5K0.5NbO3-0.05LiSbO3)-0.004FeBiO3 (KNN-LSBF-CuO) piezoelectric ceramics were synthesized by a solid-state reaction technique, and the structure and piezoelectric properties dependence of sintering time in KNN-LS-BF-CuO
【机 构】
：
School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 5410
【出 处】
：
武汉理工大学学报（材料科学版）（英文版）
论文部分内容阅读
The 0.6mol％ CuO-doping 0.996(0.95Na0.5K0.5NbO3-0.05LiSbO3)-0.004FeBiO3 (KNN-LSBF-CuO) piezoelectric ceramics were synthesized by a solid-state reaction technique, and the structure and piezoelectric properties dependence of sintering time in KNN-LS-BF-CuO ceramics were studied. It is found that all the samples sintered for various time are perovskite structure mixed with orthorhombic symmetry phase and tetragonal phase, but the sintering time has significant influences on the crystalline and properties. When the sintering time increases from 2 hours to 6 hours, the grain of KNN-LS-BF-CuO ceramics becomes more homogeneous and more tight-arrangement. The experimental results reveal that the longer sintering time than 4 hours is beneficial for improving partial properties, such as d33, tgδ, and Qm, but is adverse to εr and kp, the KNNLS-BF-CuO ceramics with optimum properties can be synthesized for 6 hours at 1060 ℃.
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