Thermal evolution of selected ranges in $2 \theta$, obtained from the XRPD experiment: (a) $24.5-27^{\circ}$, corresponding to the (111) primitive peak and (b) $56.5-60^{\circ}$ presenting a clear region to follow the evolving of the intensity. (c) Represents the $66.5-69^{\circ} 2 \theta$ interval corresponding to the (440) cubic reflections. In all the figures, the horizontal lines in blue, a guide to the eye, show the transition temperatures. The other dashed lines, in black, are a guide to follow the disappearance of the splittings.
Thermal evolution of selected ranges in 2 \theta, obtained from the XRPD experiment: (a) 24.5-27^{\circ}, corresponding to the (111) primitive peak and (b) 56.5-60^{\circ} presenting a clear region to follow the evolving of the intensity. (c) Represents the 66.5-69^{\circ} 2 \theta interval corresponding to the (440) cubic reflections. In all the figures, the horizontal lines in blue, a guide to the eye, show the transition temperatures. The other dashed lines, in black, are a guide to follow the disappearance of the splittings.