METHOD FOR PRODUCING BARIUM TITANATE

摘要

PROBLEM TO BE SOLVED: To provide a production method, wherein grain growth of barium carbonate particle can be controlled in temperature rising process when producing barium titanate by a solid phase reaction of barium carbonate and titanium oxide; and homogeneous barium titanate powder with small particle size can be produced with excellent energy efficiency.

SOLUTION: This production method of barium titanate comprises steps of preparing powder mixture of barium carbonate powder and titanium oxide powder and firing the powder mixture. The temperature of the powder mixture is raised to a firing temperature at 100°C/minute or higher rate in the range of 400°C to 700°C; and the maximum temperature at firing is 700°C or higher.

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