| Autor: |
E. D. Politova, Vladimir V. Shvartsman, A. V. Mosunov, V. V. Ivanova, S. Yu. Stefanovich, G. M. Kaleva, S. G. Prutchenko, A. G. Segalla, Andrei L. Kholkin |
| Rok vydání: |
2004 |
| Předmět: |
|
| Zdroj: |
Inorganic Materials. 40:998-1005 |
| ISSN: |
0020-1685 |
| DOI: |
10.1023/b:inma.0000041336.13046.45 |
| Popis: |
Data are presented on the phase composition, crystal structure, microstructure, and dielectric and piezoelectric properties of (1 – y)[(1 – x)Pb(Mg1/3Nb2/3)O3–xPbTiO3]–yPb(Mg1/2W1/2)O3 (x = 0.30–0.36; y = 0, 0.05, 0.10) ceramics. It is shown that the use of fine-particle magnesia as a starting reagent ensures the formation of single-phase materials. The ceramics with a rhombohedral structure are found to exhibit relaxor behavior. Increasing the content of the Pb(Mg1/2W1/2)O3 perovskite leads to ordering of the domain structure of poled ceramics and increases their piezoelectric charge coefficient d31 and the width of their phase transitions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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