RT Journal Article A1 Pavel CTIBOR,Josef SEDLACEK; AD Institute of Plasma Physics, 捷克共和国 ; Department of Electrotechnology, Faculty of Electrical Engineering, 捷克共和国 T1 Selected aspects of dielectric behavior of plasma sprayed titanates YR 2012 IS 1 vo 1 OP 50-OP 59 K1 electrical properties;plasma spraying;dielectric properties;BaTiO3 and titanates;capacitors AB XRD measurements were carried out on plasma sprayed titanates BaTiO3, CaTiO3, MgTiO3 and a mixture of the last two. Samples were tested as dielectrics and volume resistivities of the materials were also summarized. Microwave microscopy was used for mapping of the dielectric response of selected samples. The results show differences in the crystal structure between plasma sprayed coatings and feedstock powders in the case of BaTiO3 and MgTiO3 whereas CaTiO3 is crystalograffically identical with its feedstock. The reason can be found in larger sensitivity of BaTiO3 and MgTiO3 to the reductive conditions at plasma spraying whereas CaTiO3 seems to be rather inert from this viewpoint. However CaTiO3 exhibits anomalous dielectric losses because of intrinsic conductivity. SN 2226-4108 LA EN