Исследование фазовых превращений в сегнетоэлектриках на основе титаната кальция.

Авторы

  • А.Л. Козловский
  • М.В. Здоровец

DOI:

https://doi.org/10.31489/2021-No3/5-10

Ключевые слова:

титанат кальция, фазовые превращения, перовскиты, сегнетоэлектрики, степень кристалличности

Аннотация

Целью данной работы является исследование кинетики фазовых превращений в сегнетоэлектриках на основе титаната кальция. Актуальность данного исследования заключается в оценке новых методов получения сегнетоэлектриков сложного фазового состава, обладающих потенциалом применения в микроэлектронике, фотокатализе и энергетике. В качестве основных методов анализа были применены методы растровой электронной микроскопии и рентгеновской дифракции. Анализ морфологических особенностей позволил установить кинетику изменения не только размеров зерен, но и их геометрии. В ходе проведенных исследований фазовых превращений в зависимости от температуры отжига была установлена следующая зависимость типа TiO2 – anatase/CaTi2O4 → TiO2– anatase /CaTi2O4/CaTiO3 → CaTiO3/TiO2 – rutile. При этом при температуре 1000°C происходит формирование устойчивой структуры керамики с перовскитоподобной структурой типа CaTiO3 и высокой степенью структурных упорядочений (более 92%).

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Как цитировать

Козловский A., & Здоровец M. (2021). Исследование фазовых превращений в сегнетоэлектриках на основе титаната кальция. Eurasian Physical Technical Journal, 18(3(37), 5–10. https://doi.org/10.31489/2021-No3/5-10

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