Structural stability and proton beam irradiation effects on simulated metal fluoride waste-loaded iron phosphate glass

被引：2

作者：

Joshi, Akhilesh C. ^{[1
,2
]}

Roy, Mainak ^{[1
,2
]}

Dutta, Dimple P. ^{[1
,2
]}

Mishra, Raman K. ^{[3
]}

Meena, Sher Singh ^{[4
]}

Kumar, Ravi ^{[5
]}

机构：

[1] Bhabha Atom Res Ctr, Chem Div, Mumbai 400085, India

[2] Homi Bhabha Natl Inst, Mumbai, India

[3] Bhabha Atom Res Ctr, Waste Management Div, Mumbai, India

[4] Bhabha Atom Res Ctr, Solid State Phys Div, Mumbai, India

[5] Bhabha Atom Res Ctr, Atom & Mol Phys Div, Mumbai, India

来源：

INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE | 2024年 / 15卷 / 03期

关键词：

fluoride loading; iron phosphate glass; nuclear waste vitrification; proton irradiation; FORMING ABILITY; MOSSBAUER-SPECTROSCOPY; REACTOR WASTE; FE; ENVIRONMENT; MO;

D O I：

10.1111/ijag.16658

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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. Mossbauer 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.

引用

页码：292 / 306

页数：15

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