硅酸盐学报2012，Vol.40Issue(2)：324-328,5.
钙钛锆石玻璃陶瓷体的晶化和抗浸出性能
Crystallization and Leaching Resistance Performance of Zirconolite-Based Glass-Ceramics
摘要
Abstract
The zirconolite-based glass-ceramics were prepared with SiO2, A1203, B2O3, CaO, TiO2 and ZrO2 as raw materials and CeO2 of 3% （in mass fraction, the same below） as simulated nuclide by a melting method for the disposal of actinides-containing radioactive waste solidification. The glass-ceramics obtained after heat treatments were characterized by X-ray diffraction and field emission scanning electron microscopy, respectively. The leaching resistance performance of glass-ceramics was analyzed via induc- tively coupled plasma mass spectra. The results show that the zirconolite crystals in the glass-ceramics could be more readily formed by lower mass fraction of TiO2 and ZrO2 at B2O3 of 12.5%. Single crystalline phase of zirconolite could be easily formed at the same crystallization temperature and with 8.33% B203, and the glass-ceramics had better leaching resistance performances, its normalized leaching rate of Ce remained at 104 of magnitude after 7 d with the product consistency test method, and the curing effect was obvi- ous.关键词
钙钛锆石/固化/玻璃陶瓷：晶化/氧化硼Key words
zirconolite/solidification/glass-ceramics/crystallization/boric oxide分类
化学化工引用本文复制引用
李鹏,丁新更,杨辉,苏伟,窦天军..钙钛锆石玻璃陶瓷体的晶化和抗浸出性能[J].硅酸盐学报,2012,40(2):324-328,5.基金项目
浙江省重点科技创新团队资金（2009R50010）资助项目. （）
