Phase and Microstructure of(Gd1-xNdx)2Zr2O7(0 x 0.35)Compounds

In order to investigate thecom pounds with the general formula (Gd 1-x Nd x ) 2 Zr 2 O 7 , a series of compositions were fabricated by high temperature solid state reaction at 1500℃ under atmosphere pressure for 72 h.XRD and SEM were exploited to characterize the crystal structure and microstructure of the synthetic samples.The results indicate that all the (Gd 1-x Nd x ) 2 Zr 2 O 7 samples exhibit a single pyrochlore structure.The microstructure of the specimen is relatively dense, and the grain size is in the range of 4-5μm.