Figure 3, shows that the DSC curve for each of these solids indicated that the presence of the tetragonal phase only began to become evident from 1,000°C and therefore the tetragonalcubic transformation phase.
En la Figura 3 se ilustran las curvas de DSC de cada uno de estos sólidos evidenciándose que sólo a partir de los 1.000 °C comienza a ser evidente la presencia.