Electric Properties of Sr1-xBi2+xTa2-yNbyO9 Ceramics |
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| Journal | Key Engineering Materials (Volume 301) |
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| Volume | Electroceramics in Japan VIII |
| Edited by | Masaru Miyayama, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki |
| Pages | 11-14 |
| DOI | 10.4028/www.scientific.net/KEM.301.11 |
| Citation | Tadashi Takenaka, 2006, Key Engineering Materials, 301, 11 |
| Online since | January, 2006 |
| Authors | Tadashi Takenaka |
| Keywords | Bismuth Layer Structured Ferroelectrics, Curie Temperature, Ferroelectric Property, Piezoelectric Property, SrBi2Nb2O9, SrBi2Ta2O9 |
| Abstract | The dielectric, ferroelectric and piezoelectric properties of strontium bismuth tantalate niobate, Sr1-xBi2+xTa2-yNbyO9 [SBTN10x(y)] ceramics were investigated. The samples were fabricated by a conventional ceramic fabrication technique. Curie temperature, Tc, increased with an increase in Nb concentration y, and Tc of SBTN2(y) showed two regions with different slopes that divided near y=1.0. The coercive field, Ec, of SBTN2(y) increased with the increase in y and the highest Ec of 90 kV/cm was obtained. SBTN2(0.6) and SBTN2(1.0) showed the highest coupling factor k33 of 0.17 in the SBTN2(x) system. |
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