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

The dependence of BaTiO3 powder morphology evolution during decomposition o f barium titanyl-oxalale and subsequent barium titanate synthesis on heatin g rare is studied. it is established that the mechanisms of morphology deve lopment depend upon the heating mode and the necessity of a nonlinear heati ng schedule is proven. This schedule makes it possible to avoid some limita tions of linear hearing schedule and to use their advantages.