Abstract
Solid solution of the CeO2-YO1.5 system was studied extensively using X-ray diffraction, Raman spectroscopy and transmission electron microscopy. The results of X-ray diffraction analysis indicate that the solid solution was in fluorite structure over the compositional range 0-30mol%YO1.5. The results of Raman spectroscopy reveal that at 40-70mol%YO1.5, samples were fundamentally in fluorite structure but there was disorder formation that produced many satellite peaks in the X-ray diffraction patterns. At 90-100mol%YO1.5, the solid solution was in rare earth C-type structure.
