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arXiv 2602.18608cond-mat.mtrl-sci
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通过重离子辐照实验揭示实时空位浓度演变

Real-time vacancy concentration evolution revealed via heavy ion irradiation experiments

MIT Plasma Science and Fusion Center (PSFC)(麻省理工学院等离子体科学与聚变中心);MIT Department of Materials Science & Engineering(麻省理工学院材料科学与工程系);MIT Department of Nuclear Science & Engineering(麻省理工学院核科学与工程系)

Elena Botica-Artalejo, Gregory Wallace, Michael P. Short

AI总结:

利用原位离子辐照暂态光栅光谱法监测铜基合金自离子辐射损伤产生的空位浓度演变及其动力学,结果与动力学蒙特卡洛模拟一致,证实了TGS作为非接触非破坏实时缺陷监测工具的实用性。

摘要:

我们展示,利用原位离子辐照暂态光栅光谱法(I3TGS)可以监测由自离子辐射损伤在铜基合金中生成的空位浓度的实时演变。通过理论和实验结合,表面声波(SAW)频率揭示了空位浓度及其动力学的实时变化。这些结果与在相似温度和剂量率下的对应动力学蒙特卡洛模拟一致。这些结果表明,TGS作为一种非接触、非破坏性的工具,可用于实时缺陷监测。

英文摘要:

We show that in situ ion irradiation transient grating spectroscopy (I3TGS) can be used to monitor the real-time evolution of vacancy concentration generated by self-ion radiation damage in Cu-based alloys. Surface acoustic wave (SAW) frequencies are shown, using a combination of theory and experiment, to reveal vacancy concentrations and their kinetics in real-time. These results are shown to agree with corresponding kinetic Monte Carlo simulations at similar temperatures and dose rates. These results suggest the utility of TGS as a non-contact, non-destructive tool for real-time defect monitoring.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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