Modeling of damage creation in metallic materials under swift heavy ion irradiations
文献类型：期刊论文
| 作者 | Hou, MD; Jin, GM; Jin, YF; Wang, ZG
|
| 刊名 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
 |
| 出版日期 | 2000-06-01 |
| 卷号 | 169期号:6页码:98-105 |
| 关键词 | electronic energy loss thermal spike swift heavy ion irradiation damage creation metallic material |
| ISSN号 | 0168-583X |
| 英文摘要 | A variety of recent experiments in metallic targets unambiguously prove that a dense electron excitation induces atomic displacements leading to bulk damage. However, till now there is no convincing theoretical model that explains these. In the present work, a model based on the thermal spike mechanism has been proposed to account for the experimental evidence and a microscopic energy transfer mechanism between excited electrons and target atoms. This model follows four stages in the time stale of events: (1) ejection of target electrons and atoms, (2) slowing down of ejected electrons and thermalization of target valence electrons, (3) conversion of energy from thermalized electrons to target atoms, and (4) structural modification of the target. The characteristics of energy transfers are indirect and coherent in space and time. Based on mathematical developments of this model, electronic energy loss-induced thermal spike process and accompanying defect evolution are numerically simulated. In a collective process involving many neighboring target atoms, this thermal spike process is sufficient to result in microstructure modification in the bulk of metallic materials. Therefore, in the framework of this model, experimental results available in metallic materials can be explained. (C) 2000 Elsevier Science B.V. All rights reserved. |
| WOS关键词 | TRANSIENT THERMAL-PROCESS ; STOPPING POWER REGIME ; MEV C-60 IONS ; MEV FULLERENES ; ELECTRONIC EXCITATIONS ; PURE METALS ; IRON ; NICKEL ; TRACKS |
| WOS研究方向 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000088184200020 |
| 出版者 | ELSEVIER SCIENCE BV |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/1725]  |
| 专题 | 近代物理研究所_近代物理研究所知识存储（2010之前） 近代物理研究所_先进核能材料研究室（ADS） |
| 通讯作者 | Wang, ZG |
| 作者单位 | Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, MD,Jin, GM,Jin, YF,et al. Modeling of damage creation in metallic materials under swift heavy ion irradiations[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2000,169(6):98-105. |
| APA | Hou, MD,Jin, GM,Jin, YF,&Wang, ZG.(2000).Modeling of damage creation in metallic materials under swift heavy ion irradiations.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,169(6),98-105. |
| MLA | Hou, MD,et al."Modeling of damage creation in metallic materials under swift heavy ion irradiations".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 169.6(2000):98-105. |
入库方式： OAI收割
来源：近代物理研究所
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