Nanopore graphene-tungsten composite with enhanced irradiated helium atoms storage capacity

被引：3
作者：
Hu, Y. Q. [1 ]
Huang, P. [1 ]
Wang, F. [2 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian, Peoples R China
[2] Xi An Jiao Tong Univ, Sch Aerosp & Engn, State Key Lab Strength & Vibrat Mech Struct, Xian, Peoples R China
来源：
JOURNAL OF NUCLEAR MATERIALS | 2023年 / 574卷
关键词：
Graphene; Tungsten; Nanopore; Helium atoms; Molecular dynamics; MECHANICAL-PROPERTIES; MICROSTRUCTURE; INTERFACE; NANOCOMPOSITE; RESISTANCE; EVOLUTION; DIFFUSION; STRENGTH;
D O I：
10.1016/j.jnucmat.2022.154174
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Improving the storage capacity of helium atoms in irradiation-resistant materials is a problem worthy of research. In the present study, the helium atoms storage capacity of nanopore graphene/tungsten com-posites were evaluated via molecular dynamics (MD) simulation. The simulation results indicate helium atoms could be effectively absorbed in the nanopore due to the significantly reduced helium formation energy. The absorption behavior of helium atoms by graphene nanopores was shown to be a way to re-lieve stress concentration, and delay the formation of large-sized helium bubbles, which can alleviate the irradiation embrittlement.(c) 2022 Elsevier B.V. All rights reserved.
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页数：10
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