Abstract
The effect of K content on the properties of LiCe co-substituted (Na <sub>1-x</sub>K <sub>x</sub>) <sub>0.5</sub>Bi <sub>4.5</sub> 5Ti <sub>4</sub>O <sub>15</sub>-based ceramics was investigated. The Curie temperature (TC) gradually decreases from 641 to 551 °C with increasing the K content. The piezoelectric coefficient d <sub>33</sub>, thickness coupling factor k <sub>t</sub>, and mechanical quality factor Q of (Na <sub>0.5</sub>Bi <sub>0.5</sub>) <sub>0.80</sub>(Li <sub>0.5</sub>Ce <sub>0.5</sub>) <sub>0.10</sub>[] <sub>0.10</sub>Bi <sub>4</sub>Ti <sub>4</sub>O <sub>15</sub> (x 0.00) ceramic were found to be 28pC/N, 25%, and 2693, respectively, together with the high TC (∼641 °C) and stable piezoelectric properties, demonstrating that the (LiCe) modified Na <sub>0.5</sub>Bi <sub>4.5</sub> Ti <sub>4</sub>O <sub>15</sub>-based material a promising candidate for high temperture applications. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
| Original language | English |
|---|---|
| Pages (from-to) | 974-978 |
| Journal | Physica Status Solidi (A) Applications and Materials Science |
| Volume | 207 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 2010 |
| Externally published | Yes |
Bibliographical note
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This research was supported by the Outstanding Youth Scientist Research Foundation of Shandong Province of China under Grant no. 2008BS04002, the Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant nos. 20070422059 and 20080422003, and the National Natural Science Foundation of China under the Grant no. 50702030.
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