| Инд. авторы: | Pugachev A.M., Malinovsky V.K., Surovtsev N.V., Borzdov Y.M., Raevskii I.P., Raevskaya S.I., Malitskaya M.A. |
| Заглавие: | Local residual stresses in pressure-treated barium titanate powders probed by inelastic light scattering |
| Библ. ссылка: | Pugachev A.M., Malinovsky V.K., Surovtsev N.V., Borzdov Y.M., Raevskii I.P., Raevskaya S.I., Malitskaya M.A. Local residual stresses in pressure-treated barium titanate powders probed by inelastic light scattering // Ferroelectrics. - 2016. - Vol.496. - Iss. 1. - P.225-230. - ISSN 0015-0193. - EISSN 1563-5112. |
| Внешние системы: | DOI: 10.1080/00150193.2016.1155395; SCOPUS: 2-s2.0-84964483817; WoS: 000374630800025; |
| Реферат: | eng: Properties of the barium titanate submicron powder treated by high pressure were studied by Raman scattering. Residual mechanical stresses were estimated to be about 2GPa in barium titanate powder treated under uniaxial pressure of 4GPa. It is supposed that these mechanical fields change the characteristics of the central peak of the Raman spectra in the low frequency part. It is shown that central peak in pressure-treated powder corresponds to a broad distribution of relaxation times. Such behavior is typical for relaxors known as materials with the compositional disorder. Annealing decreases the residual mechanical stresses.
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| Ключевые слова: | PHASE; CERAMICS; RAMAN; BATIO3; GRAIN-SIZE; ferroelectric phase transition; central peak; Raman scattering; Barium titanate; HEAT; |
| Издано: | 2016 |
| Физ. характеристика: | с.225-230 |