关键词: 石英玻璃/
硼硅酸盐玻璃/
辐照效应
English Abstract
Comparative studies of irradiation effects in borosilicate glass and fused silica irradiated by energetic Xe ions
Peng Hai-Bo1,Liu Feng-Fei1,
Zhang Bing-Tao1,
Zhang Xiao-Yang1,
Sun Meng-Li1,
Du Xin1,
Wang Peng2,
Yuan Wei1,
Wang Tie-Shan1,
Wang Jian-Wei3
1.School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;
2.School of Physics Science and Technology, Lanzhou University, Lanzhou 730000, China;
3.Microsystem and Terahertz Research Center, China Academy of Engineering Physics, Chengdu 610200, China
Fund Project:Project supported by the National Natural Science Foundation of China (Grant Nos. 11505085, 11505086) and the Teaching Research Project Foundation of Lanzhou University, China (Grant No. 201621).Received Date:25 September 2017
Accepted Date:10 November 2017
Published Online:05 February 2018
Abstract:As the first safety barrier of high level radioactive waste, the tolerance to radiation of vitrification is critical. Vitrification is a kind of specialized glass used as the package of high-level radioactive waste in nuclear power industry. Because of its structural consistency with the main structure of vitrification (silicon-oxygen tetrahedron), fused silica is used to study the irradiation effect on network of vitrification in the present study. Borosilicate glass, a simplified version of vitrification, is studied under the same conditions for comparison. Hardness values, moduli and refractive indexes of fused silica and borosilicate glass are measured before and after irradiation with nanoindentation technology and elliptic polarization instrument. It is shown in this study that the hardness values of fused silica and borosilicate glass decrease with increasing dose. On the other hand, with dose increasing, the modulus of borosilicate glass decreases but the modulus of silica increases. Change in modulus might be attributed to the change of density, which is consistent with results from the refractive index.
Keywords: fused silica/
borosilicate glass/
effect of irradiation
