Synthesis and sintering of nanocrystalline barium titanate powder under nonisothermal conditions. IV. Electron microscope study of the evolution of barium titanate powder morphology

Abstract

The dependence of BaTiO3 powder morphology evolution during decomposition of barium titanyl-oxalate and subsequent barium titanate synthesis on heating rate is studied. It is established that the mechanisms of morphology development depend upon the heating mode and the necessity of a nonlinear heating schedule is proven. This schedule makes it possible to avoid some limitations of linear heating schedule and to use their advantages.