Synthesis and Sintering Behavior of Nano Crystalline Gd-Doped Ceria
Two kinds of nano crystalline Gd-doped CeO2 particles were successfully synthesized via glycine-nitrate combustion and neutral precipitation with subsequent hydrothermal crystallization. It was revealed that the surface modification of nano particles significantly affected sintering behaviors and resulting physical properties. Glycine/nitrate ratio was a key parameter to control the surface state of nano particles in the glycine-nitrate process, but, in the neutral precipitation process, the solvent was important. To obtain the GDC nano particles with chemically and physically favorable properties, the effect of the surface state of nano particles on the sintering behavior was discussed with consideration of aggregation property and surface-adsorbed substances on nano particles.
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
S. H. Jo et al., "Synthesis and Sintering Behavior of Nano Crystalline Gd-Doped Ceria", Materials Science Forum, Vols. 539-543, pp. 1373-1378, 2007