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Additive controlled crystallization of barium titanate powders and their application for thin-film ceramic production: Part II. From nano-sized powders to ceramic thin films

  • B. Grohe (a1), G. Miehe (a2) and G. Wegner (a1)


Nano-sized barium titanate (BaTiO3) particles prepared by the sol-to-precipitate method in aqueous/organic medium served to obtain thin-layer ceramic films of the tetragonal electroactive phase. Poly(methacrylic acid) works efficiently to process the suspensions and to obtain green films. Sintering the green films under O2–Ar atmosphere gave thin-layered ceramics of a thickness of 0.5–1.0 mm with a dielectric constant of 3750 at 20 °C (1 kHz).


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