Investigating the structure and dielectric properties of ceramic solid solutions of the SrTiO3-BiScO3 system

Autor: Elena Danshina, Oleg Ivanov
Rok vydání: 2011
Předmět:
Zdroj: Bulletin of the Russian Academy of Sciences: Physics. 75:1381-1384
ISSN: 1934-9432
1062-8738
DOI: 10.3103/s1062873811100170
Popis: Ceramic samples of (1 − x)SrTiO3-(x)BiScO3 system with x = 0, 0.05, 0.1, 0.2, 0.3, 0.4, and 0.5 were synthesized. Neither of the end members of this system are ferroelectric materials. X-ray diffraction analysis reveals that at room temperature, the samples with x = 0.2, 0.3, 0.4, and 0.5 consisted of a mixture of two phases: a cubic center-symmetric Pm3m phase and a tetragonal polar P4mm phase. Dielectric permittivity and dielectric losses measurements of these compositions showed anomalies associated with the diffuse phase transition characteristic of ferroelectrics.
Databáze: OpenAIRE