| Autor: |
Jiang, Yihang, Qin, Baoquan, Yue, Xi, Zhao, Yi, Jiang, Yuzhi, Xiao, Dingquan, Zhu, Jianguo |
| Zdroj: |
Journal of Applied Physics; Apr2008, Vol. 103 Issue 7, p074116, 5p |
| Abstrakt: |
yBiGaO3–(1-x-y)BiScO3–xPbTiO3 (BGSPT) ternary piezoelectric ceramics were fabricated by using conventional mixed oxide ceramic processing. It was found that the introduction of BiGaO3 into BiScO3–PbTiO3 system would cause a shift of morphotropic phase boundaries (MPBs), from x=0.64, y=0 to x=0.56, y=0.155; and an increase of Curie temperature (TC) near MPB, from 450 up to 494 °C, respectively. BGSPT ceramics possessed higher TC (∼494 °C) and high piezoelectric coefficient (d33∼180 pC/N), and showed the different rule of the Curie temperature near MPB versus the end member tolerance factor (t). The mechanism of higher TC in BGSPT system was also proposed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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