Slow crystallization process from amorphous PbTiO3

The effect of isothermal annealing of amorphous PbTiO 3 at a temperature below the crystallization temperature, T crys, has been investigated. Time dependent dielectric constant in the annealing process has been observed. From the experimental results, both the existence of the glass transition temperature, T g, and the steadiness of dielectric constant at room temperature have been established