中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 19 Special 1 September 2009 |
（1. School of Nano & Advanced Materials Engineering, Changwon National University,
Gyeongnam 641-773, Korea;
2. Materials Evaluation Center, Korea Research Institute of Standards and Science,
Yuseong, Daejeon 305-600, Korea）
Abstract:The nanosized Ba(CoxNb1−x)O3(BCN) particles were prepared under high temperature and pressure conditions by precipitation from metal nitrates with aqueous potassium hydroxide. Ba(CoxNb1−x)O3 powders were obtained in the temperature range of 170−210 ℃ for 6 h. The results show that the average size of the synthesized particles increases with increasing reaction temperature. The average size of the synthesized particles is about 10 nm. The crystalline phase of the synthesized particles is found to be Ba(CoxNb1−x)O3. Ceramics derived from the nano BCN powders could achieve high sintering density at a relatively low sintering temperature.
Key words: Ba(CoxNb1−x)O3 powders; nanoparticles; hydrothermal processing
