Some anomalies observed in the dielectric properties of ceramics made from calcines of BaTiO3 are due to the presence of Ba2TiO4. These effects are only negligible if the Ba2TiO4 concentration in the calcine is less than 1 or 2 wt %. For concentrations greater than this, Ba2TiO4 inhibits the growth of BaTiO3 grains, shifts the Curie point towards low temperatures, decreasesε r and causes large fluctuations in tanδ curves.
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A. Beauger, J. C. Mutin andJ. C. Niepce,J. Mater. Sci. 18 (1983) in press.
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Beauger, A., Mutin, J.C. & Niepce, J.C. Role and behaviour of orthotitanate Ba2TiO4 during the processing of BaTiO3 based ferroelectric ceramics. J Mater Sci 19, 195–201 (1984). https://doi.org/10.1007/BF00553009
- Dielectric Property
- Large Fluctuation
- Curie Point