原子能科学技术Issue(7)：1159-1164,6.DOI:10.7538/yzk.2015.49.07.1159
ZnO 和 CaO对模拟高放废液硅酸盐玻璃固化体性能的影响研究
Effect of ZnO and CaO on Alkali Borosilicate Glass Waste-form Immobilizing Simulated Mixed HLW
摘要
Abstract
Since the transit metals ,such as Fe ,Cr and Ni ,contained in some kinds of mixed HLW ,can likely to form crystal ,increase the melt viscosity ,destroy the chemi‐cal durability and block the discharge port .T he results obtained from investigating four glass waste‐forms ,including the alkali borosilicate glass matrix and alkali borosilicate glass matrix doped with 5.6% ZnO and 1.75% CaO in base matrixes ,immobilizing the simulated mixed HLW with 15% and 20% waste loadings aiming to determinate the effect of ZnO on the alkali borosilicate glass chemical durability with waste loading increasing ,were presented in this paper .Glass samples were characterized with XRD and Raman spectroscopy .The chemical durability was investigated using the standard protocols PCT and VHT .The XRD analysis results show that spinel crystal appears and grows in glass samples at the waste loading in 20% without ZnO addition and waste loading in 15% and 20% added ZnO .T he Raman spectroscopy analysis results indicate that ZnO and CaO can enhance the glass network connective ,and the chemical durability test results display that the addition of ZnO and CaO can improve the short term chemi‐cal durability of the glass samples ,except Zn20 obtained the lower value in VHT result , which is caused by the higher crystal ratio and lower fracture toughness .关键词
高放废液/玻璃固化体/性能测试Key words
HLW/glass waste-form/performance characterization分类
化学化工引用本文复制引用
张华,N.C.Hyatt,J.R.Stevens,R.Hand..ZnO 和 CaO对模拟高放废液硅酸盐玻璃固化体性能的影响研究[J].原子能科学技术,2015,(7):1159-1164,6.基金项目
国际原子能机构（IAEA）和国家原子能机构（CAEA）资助项目 （）
