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Radiation effects on structure and mechanical properties of borosilicate glasses
Chen, L. T.1,2; Ren, X. T.3; Mao, Y. N.1,2; Mao, J. J.1,2; Zhang, X. Y.1,2; Wang, T. T.1,2; Sun, M. L.1,2; Wang, T. S.1,2; Smedskjaer, M. M.3; Peng, H. B.1,2
2021-08-15
Source PublicationJOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
Volume552
AbstractBorosilicate glass is a candidate material for solidification of high-level radioactive waste (HLW). During disposal of HLW, the glass will be subjected to irradiation, especially the heavy ion irradiation related to alpha decay is expected to affect the properties of the glasses over billions of years. Therefore, it is important to understand the stability of borosilicate glasses upon irradiation. In this work, we study a series of sodium borosilicate glasses as well as the International Simple Glass (ISG) and subject them to irradiation with 5 MeV Xe ions. The radiation effects on the glasses include variations of macroscopic characteristics such as nano-hardness, modulus, volume change and crack initiation resistance (CR). We found that hardness, modulus, and volume changes of the glasses saturate at a certain irradiation dose, above which no further change is observed. The saturated values of hardness and modulus are found to be the same for glasses with different composition, while the saturated volume change depends on the glass composition. In addition, CR of the glasses increases dramatically upon irradiation. Meanwhile, we also studied the structure changes upon irradiation for both borosilicate and ISG glasses using Raman and infrared spectroscopies, showing an apparent transformation of BO4 to BO3 groups in borosilicate glasses irradiated with heavy ions. We thus this structural change in relation to the changes of mechanical/elastic properties. Our findings suggest that boron structures play an important role in controlling the macroscopic radiation effects. (C) 2021 Elsevier B.V. All rights reserved.
Keywordborosilicate glassnano-hardnessmoduluscrack resistanceirradiation
PublisherELSEVIER
DOI10.1016/j.jnucmat.2021.153025
Indexed ByEI ; SCOPUS ; SCIE
Language英语
WOS Research AreaMaterials ScienceNuclear Science & Technology
WOS SubjectMaterials Science, MultidisciplinaryNuclear Science & Technology
WOS IDWOS:000653054500001
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/450656
Collection兰州大学
Affiliation1.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China;
2.Lanzhou Univ, Key Lab Special Funct Mat & Struct Design, Minist Educ, Lanzhou 730000, Peoples R China;
3.Aalborg Univ, Dept Chem & Biosci, DK-9220 Aalborg, Denmark
First Author AffilicationSchool of Nuclear Science and Technology;  School of Physical Sicence and Technology
Recommended Citation
GB/T 7714
Chen, L. T.,Ren, X. T.,Mao, Y. N.,et al. Radiation effects on structure and mechanical properties of borosilicate glasses[J]. JOURNAL OF NUCLEAR MATERIALS,2021,552.
APA Chen, L. T..,Ren, X. T..,Mao, Y. N..,Mao, J. J..,Zhang, X. Y..,...&Peng, H. B..(2021).Radiation effects on structure and mechanical properties of borosilicate glasses.JOURNAL OF NUCLEAR MATERIALS,552.
MLA Chen, L. T.,et al."Radiation effects on structure and mechanical properties of borosilicate glasses".JOURNAL OF NUCLEAR MATERIALS 552(2021).
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