Wysokotemperaturowe ciepło właściwe tytanianu boru

Abstract

It has been measured the specific heat c[p] of ceramic samples of BaTiO[3] using a cooling method in the temperature range 330-430°K. It found the phase transition at about 392°K what was seen as a peak on the plot c [p]= c[p](T). The obtained results has allowed to calculate the value of the phase transition heat, the entropy change and the spontaneous polarization in this phase transition.