This article is cited in 1 paper

Dielectrics

Structural and morphological transformations of BaTiO$_3$ nanocrystals in thin layers of borate oxide glasses

V. V. Kedrov, I. M. Shmyt'ko

Institute of Solid State Physics, Russian Academy of Sciences, ul. Akademika Ossipyana 2, Chernogolovka, Moscow oblast, 142432, Russia

Abstract: The influence of thin layers (2–15 $\mu$m) of some oxide glass melts on BaTiO$_3$ nanocrystallites has been investigated using X-ray diffractometry and scanning electron microscopy. It has been shown that lead borate and sodium borate glass melts bring about the dissolution of BaTiO$_3$ nanocrystallites and the subsequent crystallization in glasses of lead titanate PbTiO$_3$ and sodium titanate Na$_2$TiO$_3$, respectively. It has been found that thin layers of melts of these glasses have a strong orientation effect on crystallites of the PbTiO$_3$ and Na$_2$TiO$_3$ compounds newly synthesized from barium titanate. The orientation effect exerted by these glass layers results in the formation of a pronounced texture of the perovskite crystallites with the texture axes oriented along the [100] and [001] directions parallel to the surface normal of the substrate for lead titanate and the orientation of the $(21\bar1)$ planes of the film surface for the sodium titanium oxide.

Received: 28.07.2014

 English version: Physics of the Solid State, 2015, 57:2, 309–313

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