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题名:
Saturation of ion irradiation effects in MAX phase Cr2AlC
作者: Huang, Q; Han, H; Liu, RD; Lei, GH; Yan, L; Zhou, J; Huang, Q
刊名: ACTA MATERIALIA
出版日期: 2016
卷号: 110, 期号:-, 页码:1—7
关键词: M(N+1)AX(N) PHASES ; TI3ALC2 ; TI3SIC2 ; DAMAGE ; RESISTANCE ; TOLERANCE
DOI: 10.1016/j.actamat.2016.03.021
通讯作者: Yan, L (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
文章类型: 期刊文献
英文摘要: Cr2AlC materials were irradiated with 7 MeV Xe26+ ions and 500 keV He2+ ions at room temperature. A structural transition with an increased c lattice parameter and a decreased a lattice parameter occurs after irradiation to doses above 1 dpa. Nevertheless, the modified structure is stable up to the dose of 5.2 dpa without obvious lattice disorder. The three samples irradiated to doses above 1 dpa have comparable lattice parameters, hardness and modulus values, suggesting a saturation of irradiation effects in Cr2AlC. The structural transition and irradiation effects saturation are ascribed to irradiation-induced antisite defects (Cr-Al and Al-Cr) and C interstitials, which is supported by the calculations of the formation energies of various defects in Cr2AlC. The irradiation-induced antisite defects and C interstitials may be critical to understand the excellent resistance to irradiation-induced amorphization of MAX phases. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000374810400001
ISSN号: 1359-6454
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25828
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Huang, Q,Han, H,Liu, RD,et al. Saturation of ion irradiation effects in MAX phase Cr2AlC[J]. ACTA MATERIALIA,2016-01-01,110(-):1—7.
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