Microstructure and ionic conductivity of (La 1/2Li 1/3+x )TiO 3 perovskite-like solid solutions

The lattice parameters of (La 1/2Li 1/3+x )TiO 3 (x = 0, 1/10, 1/6, 1/5, 1/4) ceramics have been determined as functions of temperature, and their microstructure and transport properties have been studied. The results indicate that the oxides retain orthorhombic symmetry upon the structural changes at ≃925 K. According to atomic force microscopy results, the grains in the ceramics consist of nanocrystallites 60 to 120 nm in size. Analysis of the grain bulk and grain boundary contributions to the ionic conductivity of the (La 1/2Li 1/3+x )TiO 3 solid solutions shows that their bulk conductivity σ bulk decreases with increasing x because reducing the concentration of A-site vacancies impedes ionic transport. © 2007 Pleiades Publishing, Inc.

Авторы
Fortalnova E.A. 1 , Safronenko M.G. 1 , Venskovskii N.U. 1 , Politova E.D. 2 , Mosunov A.V.2 , Zhizhin M.G.3 , Loginov B.A.4
Журнал
Номер выпуска
10
Язык
Английский
Страницы
1103-1108
Статус
Опубликовано
Том
43
Год
2007
Организации
  • 1 Russian University of People' Friendship, ul. Ordzhonikidze 3, Moscow 117198, Russian Federation
  • 2 Karpov Institute of Physical Chemistry (Russian State Scientific Center), ul. Vorontsovo pole 10, Moscow 105064, Russian Federation
  • 3 Moscow State University, Vorob'evy gory 1/3, Moscow 119899, Russian Federation
  • 4 Alikhanov Inst. for Theor. and Experimental Physics (Russian Federation State Scientific Center), Bol'shaya Cheremushkinskaya ul. 25, Moscow 117218, Russian Federation
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/3202/
Поделиться

Другие записи

Volkov S.V., Kutyakov S.V., Levov A.N., Polyakova E.I., An L.T., Soldatova S.A., Terentiev P.B., Soldatenkov A.T.
Химия гетероциклических соединений. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Том 43. 2007. С. 1260-1268