| Popis: |
Barium titanate thick films 10-70 μm thick were obtained using a unique electrophoretic deposition technique, which utilizes a mixed ethanol-acetylacetone suspension as the dispersive medium. The capacitance of the BaTiO 3 films was measured as 25-70 nF, at temperatures of up to 200°C, giving a dielectric constant of 4000-12000 and dielectric loss (tan δ) of 0.13-0.51. In the sintered films thus deposited, (111) orientation was observed, and the degree of orientation was found to increase with decrease of the thickness of the films. In so-oriented films, the Curie point was confirmed to be near 120°C |
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