Synthesis and sintering of nanocrystalline barium titanate powder under nonisothermal conditions. I. Control of dispersity of barium titanate during its synthesis from barium titanyl oxalate

Abstract

We have studied the process of synthesis of barium titanate powder from barium titanyl oxalate precursor under nonisothermal conditions. We studied the effect of the heating rate on the specific surface area of the powder. We have established the advantages of nonisothermal conditions compared with isothermal conditions, especially the possibility of flexible control over the barium titanate grain size.