Influence of Nonstoichiometry on the Growth of Grains
of Lanthanum-doped Barium Titanate

A. F. Shimanskii

Krasnoyarsk State Academy of Nonferrous Metals and Gold, pr. Krasnoyarskii rabochii 95, Krasnoyarsk, 660025 Russia

Received May 5, 1996

Abstract—The effect of lanthanum doping on grain growth during liquid-phase sintering of barium titanate in
the range of oxygen partial pressures 0.02–0.5 MPa is studied. Based on data obtained, the effect of nonstoichi-
ometry on the formation of microstructure of doped BaTiO₃ is considered. It is shown that the content of non-
stoichiometry defects in the solid phase in the course of sintering can essentially affect the grain growth.

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