【摘要】 自然界中稳定存在的烧绿石由于在高放废物固化研究中呈现出的良好特性,近年来得到了大量的研究。在前人研究成果的基础上,对烧绿石的晶体结构与固化机理、锕系核素和稀土类似物的包容情况以及固化体的合成方法和相关性能等进行了系统的研究总结。已有的研究表明,烧绿石人造岩石固化体具有较高的密度和包容量,良好的抗浸出和抗辐照性能,是固化高放废物和进行最终地质处置的理想固化体,具有良好的应用前景。更多还原

【Abstract】 For its well properties showing in research about immobilizing high level radioactive waste,pyrochlore which stably exists in nature has been well studied in recent years. Based on the achievements of the previous scientists,the crystal structure and immobilization mechanism of pyrochlore, inclusion of actinide elements and rare-earth stimulants in pyrochlore, systemization method and correlation capabilities are summarized and discussed systemically in the paper. The results indicate that pyrochlore synroc has high density and waste loading, well durability and radiation stability, and it is a suitable host for high level radioactive waste as well as the final disposal of the final geological. Besides, it has a good prospect of application.更多还原