Dielectric properties of the ferroelectric composites [AgNa(NO₂)₂]_0.9/[NaNO₂]_0.1 and [AgNa(NO₂)₂]_0.9/[BaTiO₃]_0.1

Abstract

The effect of sodium nitrite and barium titanate particle inclusions on the dielectric properties and the Curie temperature of the ferroelectric AgNa(NO₂)₂ is studied. It is shown that the presence of 10 volume percent of BaTiO₃ particles increases the permittivity 4 times and raises the temperature of the phase transition by ΔТ_c ≈ 10 K. The presence of the NaNO₂ particles leads to the increase of dielectric permittivity of the composite, but it does not influence the Curie temperature.

KEYWORDS:

• Ferroelectric composites
• permittivity
• phase transitions