Fig. 3: Phase evolution of the (Sc0.1Lu0.3Yb0.3Er0.2Y0.1)PO4 upon high temperature steam corrosion.

XRD patterns of the (Sc0.1Lu0.3Yb0.3Er0.2Y0.1)PO4 surface before and after steam exposure for 60 h at 1400 °C.
XRD patterns of the (Sc0.1Lu0.3Yb0.3Er0.2Y0.1)PO4 surface before and after steam exposure for 60 h at 1400 °C.