Properties and Consolidation of Nanostructured Ce_(0.8)Gd_(0.2)O_(1.9) by Pulsed-Current-Activated Sintering

摘要

Dense nanophase Ce_(0.8)Gd_(0.2)O_(1.9) was sintered by a pulsed-current-activated sintering method within 10 min from Ce_(0.8)Gd_(0.2)O_(1.9) nanopowder made using the co-precipitation method. Sintering was accomplished under the combined effects of a pulsed current and mechanical pressure. Highly dense Ce_(0.8)Gd_(0.2)O_(1.9) with a relative density of up to 96.5 percent was produced under the simultaneous application of 80 MPa of pressure and a pulsed current. The ionic conductivities and mechanical properties of the Ce_(0.8)Gd_(0.2)O_(1.9) were investigated.