Akhilesh C. Joshi, Mainak Roy, Dimple P. Dutta, Raman K. Mishra, Sher Singh Meena, Ravi Kumar
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引用次数: 0
摘要
下一代核反应堆技术（如熔盐反应堆）利用碱金属氟化盐作为燃料和冷却剂。本研究探讨了磷酸铁玻璃（IPG）作为碱金属氟化物（NaF、CaF2）和模拟裂变产物氟化物（NdF3、CeF3、SmF3）废物玻璃化基质的适用性。利用拉曼光谱和傅立叶变换红外光谱对金属氟负载 IPG 的结构变化进行了深入分析。热分析表明，在 IPG 中添加各种混合金属氟化物后，其稳定性和玻璃成型能力均有所提高。莫斯鲍尔数据和铁 K 边的 X 射线吸收光谱探究了局部结构的微小变化。通过 4.5 兆电子伏特质子束辐照，研究了放射性废物辐射对含氟 IPG 的影响。我们的研究充分证明了 IPG 作为含氟放射性金属核废料玻璃化基质的适用性。
Structural stability and proton beam irradiation effects on simulated metal fluoride waste–loaded iron phosphate glass
Next-generation nuclear reactor technologies such as the molten salt reactor utilize alkali metal fluoride salts as both fuel and coolant. In the present study, the suitability of iron phosphate glass (IPG) as a vitrification matrix for alkali metal fluoride (NaF, CaF2) and simulated fission product loaded fluoride (NdF3, CeF3, SmF3) waste has been explored. The structural change in the metal fluoride–loaded IPG has been analyzed thoroughly using Raman and fourier transform infrared (FTIR) spectroscopy. Thermal analysis showed that the stability and glass forming ability of IPG improved upon loading the same with various mixed metal fluorides. Mössbauer data and X-ray absorption spectroscopy at Fe K-edge explored the minute changes in the local structure. The effect of radiation emanating from radioactive wastes in the fluoride-loaded IPG has been scrutinized via 4.5 MeV proton beam irradiation. Our study firmly establishes the applicability of IPG as suitable vitrification matrix for radioactive metal fluoride–loaded nuclear wastes.
期刊介绍：
The International Journal of Applied Glass Science (IJAGS) endeavors to be an indispensable source of information dealing with the application of glass science and engineering across the entire materials spectrum. Through the solicitation, editing, and publishing of cutting-edge peer-reviewed papers, IJAGS will be a highly respected and enduring chronicle of major advances in applied glass science throughout this century. It will be of critical value to the work of scientists, engineers, educators, students, and organizations involved in the research, manufacture and utilization of the material glass. Guided by an International Advisory Board, IJAGS will focus on topical issue themes that broadly encompass the advanced description, application, modeling, manufacture, and experimental investigation of glass.
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