Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1463413 | Ceramics International | 2010 | 4 Pages |
Abstract
Two kinds of Ce0.8Gd0.2O2−δ pellets were synthesized by a solid-state reaction using two types of commercial CeO2 and Gd2O3. In contrast to previous reports, pellets with a sintered density of 99% at 1300 °C were obtained regardless the powder used. Mechanochemical activation of the starting materials by 7 h of high energy milling, which resulted in particles several tens of nanometer in size, was effective in reducing the sintering temperature. Ce0.8Gd0.2O2−δ pellets could be synthesized by direct sintering without calcination due to the homogeneous distribution of fine starting materials. The final phase was confirmed by the ionic conductivity, X-ray diffraction patterns and lattice parameters.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Won-Sik Jung, Hee-Seok Park, Young Jin Kang, Dang-Hyok Yoon,