Dielectric and microwave properties of ceramics of the Bi-Ti-O system

Abstract

Dielectric and microwave properties of ceramics based on binary systems Bi2Ti2O7-TiO2 and Bi2Ti4O11-TiO2 were studied. In order to obtain dielectric materials with high stability of temperature coefficient of resonance frequency, high values of dielectric permittivity and quality factor modification of ceramics by chemical elements with different valence and ionic radii was performed. It is established, that on the basis of Bi2Ti4O11-TiO2 system, it is possible to receive microwave materials for manufacturing of resonators. It is shown that the introduction of different valence ions in the Bi2Ti2O7-TiO2 system allows to change its basic dielectric parameters in given limits and directed to choose the optimal composition of ceramics for the development of materials that can be used, for example, when creating storage capacitors.