Heat capacity and thermal expansion study of Ba0.9Bi0.067(Ti1-xZrx)O3 ceramics
Langue
en
Article de revue
Ce document a été publié dans
Journal of Physics: Condensed Matter. 2007, vol. 19, n° 34, p. 346237 (8 p.)
IOP Publishing
Résumé en anglais
For Ba0.9Bi0.067(Ti1-xZrx)O3 (x = 0.04,0.15) ceramics, the heat capacity Cp(T) and the thermal expansion α(T) were measured using an adiabatic calorimeter and an optical–mechanical dilatometer in the temperature range ...Lire la suite >
For Ba0.9Bi0.067(Ti1-xZrx)O3 (x = 0.04,0.15) ceramics, the heat capacity Cp(T) and the thermal expansion α(T) were measured using an adiabatic calorimeter and an optical–mechanical dilatometer in the temperature range 100–420 K. Both compounds reveal diffuse heat capacity and thermal expansion anomalies: three anomalies in the temperature regions 150–250 K, 250–300 K (α(T) only) and 300–400 K at x = 0.04 and two anomalies in the regions 200–250 K and 250–350 K at x = 0.15. The results obtained are discussed together with the data on the dielectric properties.< Réduire
Mots clés en anglais
Ceramics
Heat capacity
Thermal expansion
Dilatometry
Calorimetry
Origine
Importé de halUnités de recherche