Structural and Dielectric Studies of PbYb1/2Nb1/2O3 Ceramics with the Differing Degree of the Long-Range Compositional Ordering Fabricated by Mechanoactivation
| Autor: | E. I. Sitalo, V. V. Titov, V. P. Isupov, O. A. Bunina, Yu. A. Kuprina, A. V. Blazhevich, S. I. Raevskaya, M. A. Malitskaya, I. P. Raevski, A. A. Gusev, I. N. Zakharchenko, S. V. Orlov |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Phase transition Materials science Diffusion Analytical chemistry 02 engineering and technology Dielectric Atmospheric temperature range 021001 nanoscience & nanotechnology 01 natural sciences Ion visual_art 0103 physical sciences visual_art.visual_art_medium Antiferroelectricity Orthorhombic crystal system Ceramic 0210 nano-technology |
| Zdroj: | Springer Proceedings in Physics ISBN: 9783319789187 |
| Popis: | It was found out that compositional ordering degree S of Yb3+ and Nb5+ ions in PbYb1/2Nb1/2O3 ceramics and correspondingly both the temperature and diffusion of antiferroelectric phase transition can be varied within a wide range by means of high-energy mechanical activation. In particular, for the first time disordered PbYb1/2Nb1/2O3 ceramics exhibiting relaxor-like dielectric properties was fabricated without the use of any additives. For the most ordered PbYb1/2Nb1/2O3 samples (S ≈ 0.82), the coexistence of cubic paraelectric and orthorhombic antiferroelectric phases in a temperature range 190–300 °C was revealed. |
| Databáze: | OpenAIRE |
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