Low-Temperature Sintering of (Bi,Na)0.83Ba0.17TiO3--0.2 wt % CuO Piezoelectric Ceramics from Nanopowders
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概要
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Using (Bi0.5Na0.5)0.83Ba0.17TiO3 nanopowders synthesized by an oxalate precursor route, 0.2-wt %-CuO-doped ceramics can be sintered at a low temperature of 880 °C. The shrinkage rate is 16.5%, the relative density $D_{\text{r}}$ is 98%, the relative dielectric constant $\varepsilon^{\text{T}}_{33}/\varepsilon_{0}$ (1 kHz) is 705, the loss $\tan \delta$ (1 kHz) is 2.50%, the electromechanical coupling factor $k_{\text{p}}$ is 13.6%, and the piezoelectric charge coefficient $d_{33}$ is 105 pC/N.
- 2011-01-25
著者
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Karaki Tomoaki
Department Of Eiectronics And Lnformatics Faculty Of Engineering Toyama Prefectutral Universtiy
-
Adachi Masatoshi
Department Of Chemistry And Biotechnology Graduate School Of Engineering Tottori University
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Lv Junhua
Department of Intelligent Systems Design Engineering, Faculty of Engineering, Toyama Prefectural University, Imizu, Toyama 939-0398, Japan
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