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Atom Movement in Pure Cu and Cu-Ni Alloy Single Crystals under Ion-Beam Irradiation

离子束辐照下纯铜和铜镍合金单晶的原子运动

基本信息

批准号：
13650712
负责人：
FUJINO Yutaka
金额：
$ 2.3万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650712/
关键词：
Interaction of Radiation with Solids TRIM CODE Rutherford Backscattering Ion Channeling Dislocation Ion Implantation Materials Property Change Induced by Ion-Beam Irradiation Materials Modification ラザフォード後方散乱法 TRIIM-CODE

项目摘要

Interaction of energetic ion beams with solids and materials property change induced under ion-beam irradiatin have long been attracting attention from both points of view of its basic understanding and application. In order to understand the phenomena, a large number of works have already been performed both theoretically and experimentally. However, the process of the interaction and material property change induced under ion-beam irradiation have not yet been fully understood and still remain as a field of fundamental scientific problems, although material modification by ion-beam irradiation has widely been applied in various engineering fields.In this study, Rutherford backscattering and channeling measurements have been applied to investigate both deep radiation damage and depth profile of implanted Au atoms in pure Cu and Cu-1at.% Ni alloy single-crystal specimens, which were irradiated off axis at room temperature by 300 keV Au+ ions to a dose of 2x10^<16> ions/cm^2. The damage range and depth range of the implanted Au atoms in the specimens of pure Cu were strikingly deeper than those in the specimens of Cu-1at.% Ni alloys, respectively. An atom movement mechanism in solids under ion beam irradiation is proposed as the origin of the observed results.

高能离子束与固体的相互作用以及离子束辐照引起的材料性质变化，无论从基本认识还是应用角度都一直是人们关注的焦点。为了理解这一现象，大量的工作已经进行了理论和实验。然而，尽管离子束辐照材料改性已广泛应用于各种工程领域，但离子束辐照下的相互作用过程和材料性质变化尚未完全了解，仍然是一个基础科学问题。采用卢瑟福背散射和沟道测量方法研究了注入Au原子的深度辐射损伤和深度分布纯铜和Cu-1at.%镍合金单晶样品，在室温下用300 keV的Au+离子以2 × 10 ^ ions/cm ^2的剂量离轴辐照<16>。注入Au原子在纯铜试样中的损伤范围和深度范围明显大于Cu-1at.%试样Ni合金。提出离子束照射下固体中原子的运动机制是观察结果的起源。