Enhancing piezoelectric properties by introducing Ni ion into B–site of Li/Sb-modified (K,Na)NbO3 Pb-free piezoceramics
Enhancing piezoelectric properties by introducing Ni ion into B–site of Li/Sb-modified (K,Na)NbO3 Pb-free piezoceramics
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DOI：
10.2109/jcersj2.120.375
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发表时间：
2012-09
影响因子：
1.1
通讯作者：
Z. Shen;Yueming Li;W. Luo;Wang Zhu-mei
中科院分区：
文献类型：
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作者：
Z. Shen;Yueming Li;W. Luo;Wang Zhu-mei
By introducing Ni ion into the B site of perovskite lattice, (K 0.47 Na 0.51 Li 0.02 )(Nb 0.94 ¹ x Sb 0.06 Ni x )O 3 (KNN-LSN, x = 0, 0.002, 0.005, and 0.008) Pb-free piezoceramics were prepared by solid state reaction method. The effect of Ni doping amounts on the structure and electrical properties of KNN-LSN ceramics were investigated. XRD results showed that all ceramics had pure orthorhombic perovskite structure. The introduction of Ni ion into B site of KNN-LSN ceramics effectively improved the electrical properties. The optimal electrical properties of d 33 = 192pC / N, k p = 38.6 % , Q m = 128, ¾ r = 756, tan ¤ = 0.025, P r = 25.6 ¯ C / cm 2 , and E c = 1.21kV / mm were obtained when Ni doping amount x = 0.005, indicating that this ceramic was a promising Pb-free candidate for
