Piezoelectric and ferroelectric properties of [(K0.4725Na0.4725)Li0.055]NbO3–(Ag0.5Li0.5)TaO3 lead‐free ceramics |
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| Authors: | Jiagang Wu Yuanyu Wang Dingquan Xiao Jianguo Zhu |
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| Institution: | 1. Department of Materials Science, Sichuan University, Chengdu 610064, P.R. China;2. College of Materials Science and Metallurgy Engineering, Guizhou University, Guiyang 55000, P.R. China |
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| Abstract: | New lead‐free piezoelectric (1 – x)(K0.4725Na0.4725)Li0.055]NbO3– x (Ag0.5Li0.5)TaO3 (1 – x)KNNL–x ALT] ceramics were prepared by conventional sintering. Piezoelectric and ferroelectric properties and Curie temperature of the ceramics were studied. The (1 – x)KNNL–x ALT (x = 0.04) ceramics exhibit good properties (d33 ～ 252 pC/N, kp ～ 41%, TC ～ 471 °C, To–t = 47 °C, Pr = 33.1 μC/cm2, Ec = 10.6 kV/cm). These results show that (1 – x)KNNL–x ALT (x = 0.04) ceramic is a promising lead‐free piezoelectric material for high temperature application. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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| Keywords: | 77 65 Bn 77 80 Bh 77 80 Dj 77 84 Dy 81 05 Je |
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