Features of low-frequency relaxation processes of sodium niobate ceramics in various structural phases

Abstract

Comparative studies of low-frequency dispersion, analysis of the most probable relaxation time and activation energy of the low-frequency relaxation process of sodium niobate ceramics obtained under various technological conditions for the synthesis of sodium niobate material were carried out. It is shown that the temperature conditions of the synthesis of the sodium niobate material determine the nature of the low-frequency dispersion only at relatively low temperatures (structural Q or P phase) of sodium niobate samples.

Keywords:

• Piezoceramics
• relaxation processes
• permittivity
• sodium niobate ceramic