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题名: Properties of phosphate glass waste forms containing fluorides from a molten salt reactor
作者: Sun, YP; Xia, XB; Qiao, YB; Zhao, ZQ; Ma, HJ; Liu, XY; Qian, ZH
刊名: NUCLEAR SCIENCE AND TECHNIQUES
出版日期: 2016
卷号: 27, 期号:3, 页码:-
关键词: Molten salt reactor ; Fluoride-containing radioactive wastes ; Phosphate-based glasses
DOI: 10.1007/s41365-016-0059-9
通讯作者: Sun, YP (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China. ; Sun, YP (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
文章类型: 期刊论文
英文摘要: Radioactive fluoride wastes are generated during the operation of molten salt reactors (MSRs) and reprocessing of their spent fuel. Immobilization of these wastes in borosilicate glass is not feasible because of the very low solubility of fluorides in this host. Alternative candidates are thus an active topic of research including phosphatebased glasses, crystalline ceramics, and hybrid glass-ceramic systems. In this study, mixed fluorides were employed as simulated MSRs waste and incorporated into sodium aluminophosphate glass to obtain phosphate-based waste form. These waste forms were characterized by X-ray diffraction, Raman spectroscopy, and scanning electron microscopy. Leaching tests were performed in deionized water using the product consistency test A method. This study demonstrates that up to 20 mol% of simulated radioactive waste can be introduced into the NaAlP glass matrix, and the chemical durability is much better than that of borosilicate. The addition of Fe2O3 in the NaAlP glass matrix results in increases of the chemical durability at the expense of fluoride loading (to 6.4 mol%). Phosphate glass vitrification of radioactive waste containing fluorides is a potential method to treat and dispose of MSR wastes.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000380038900014
ISSN号: 1001-8042
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26608
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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