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- W2049271803 abstract "Abstract Dense K 4 CuNb 8 O 23 (KCN) modified 0.948K 0.5 Na 0.5 NbO 3 –0.052LiSbO 3 (KNNLS) ceramics were prepared by conventional solid state reaction method. The effect of addition of K 4 CuNb 8 O 23 liquid phase sintering aid on the phase structure and electrical properties of ceramics was studied. Results showed that K 4 CuNb 8 O 23 induced a perovskite structure transition from coexistence of orthorhombic and tetragonal phases to orthorhombic symmetry. The addition of K 4 CuNb 8 O 23 promoted the sintering of KNNLS ceramics. In particular, the K 4 CuNb 8 O 23 addition to the KNNLS greatly improved the mechanical quality factor Q m value. The ceramics with x =0.8 sintered at 1090 °C possess the optimum properties ( Q m =192, d 33 =135 pC/N, tan δ =0.024 and k p =0.357). These results indicate that the ceramic is a promising candidate for lead-free high-power piezoelectric devices, such as piezoelectric actuators, transformers and filter materials." @default.
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- W2049271803 date "2012-07-01" @default.
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- W2049271803 title "Effects of K4CuNb8O23 on phase structure and electrical properties of K0.5Na0.5NbO3–LiSbO3 lead-free piezoceramics" @default.
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- W2049271803 doi "https://doi.org/10.1016/j.physb.2012.03.070" @default.
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