Effect of boron doping on the irradiation resistance of iron phosphate glass: Insights from mechanical properties and chemical stability

被引：0
作者：
Cao, Yutian [1 ,2 ]
Ou, Tianci [1 ,2 ]
Xue, Haoxiang [1 ,2 ]
Yang, Fan [1 ,2 ]
Wang, Chunting [3 ]
Li, Junhua [4 ]
Zhou, Qian [1 ,2 ]
Chen, Liang [1 ,2 ]
Fang, Kaihong [1 ,2 ]
Lv, Peng [1 ,2 ]
机构：
[1] Lanzhou Univ, MOE Frontiers Sci Ctr Rare Isotopes, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
[3] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine New Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo 315201, Peoples R China
[4] Luohe Tech Coll, Luohe 462000, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2024年 / 646卷
基金：
中国博士后科学基金;
关键词：
Iron phosphate glass; Ion irradiation; Irradiation resistance; Mechanical properties; Water contact angle; NUCLEAR-WASTE; BOROSILICATE GLASS; ALPHA-DECAY; IMMOBILIZATION; DISSOLUTION; BEHAVIOR;
D O I：
10.1016/j.jnoncrysol.2024.123238
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：
We investigated the ion-irradiation effects of iron phosphate glasses (IPGs) with composition of 40Fe2O3-60P2O5 (mol%) and 10B2O3-36Fe2O3-54P2O5 (mol%), respectively, and explored the effect of boron doping on the mechanical properties and the chemical stability. Mono-ion irradiation (5-MeV Xe20+) and sequential irradiation scenario (5-MeV Xe20++ 250-keV H+) were performed with different doses. As the Xe-dose increased, both the hardness and the Young's modulus decreased until converging to saturation, and then the hardness tended to recover. The variations in mechanical properties and water contact angle of the 10B2O3-36Fe2O3-54P2O5 were more significant than those of the 40Fe2O3-60P2O5, indicating inferior irradiation resistance. The hardness recovery was also observed in H-ion irradiation whose energy deposition is predominated by electronic interaction, while the boron doping weakened this phenomenon. Our study contributes to understanding the longterm behavior of IPG during the underground disposal of high-level waste, and provides fundamental data to optimize the design of IPG formulations.
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页数：7
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