| 电子束辐照下铜超微粒子氧化与还原过程的高分辨电子显微镜观察 |
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| 引用本文： | 徐淑华,关若男,于赢大,李日升. 电子束辐照下铜超微粒子氧化与还原过程的高分辨电子显微镜观察[J]. 腐蚀科学与防护技术, 1995, 0(1) |
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| 作者姓名： | 徐淑华 关若男 于赢大 李日升 |
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| 作者单位： | 中国科学院金属研究所固体原子象实验室，华南理工大学应用物理系，中国科学院金属腐蚀与防护研究所，金属腐蚀与防护国家重点实验室 |
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| 摘 要： | 利用电子显微镜中的电子束对铜超微粒子进行了连续地照射和跟踪观察，结果表明电子束使Ｃｕ与镜筒中的低氧压气氛发生了反应，电子束的辐照使纳米量级的Ｃｕ粒子发生了氧化并被消耗，首先生成一种类非晶膜，然后生成Ｃｕ的晶态氧化物，新生成的Ｃｕ的晶态氧化物，在电子束的进一步照射下，又发生了还原反应，不断地还原为铜
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| 关 键 词： | 铜超微粒子，氧化，还原，电子束辐照，类非晶膜 |
HREM STUDY ON OXIDATION AND REDUCTION OF ULTRAFINE COPPER PARTICLES INDUCED BY ELECTRON BEAM IRRADIATION |
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| XU Shuhua,GUAN Ruonan,YU Yingda,LI Risheng:. HREM STUDY ON OXIDATION AND REDUCTION OF ULTRAFINE COPPER PARTICLES INDUCED BY ELECTRON BEAM IRRADIATION[J]. Corrosion Science and Protection Technology, 1995, 0(1) |
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| Authors: | XU Shuhua GUAN Ruonan YU Yingda LI Risheng: |
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| Affiliation: | XU Shuhua,GUAN Ruonan,YU Yingda,LI Risheng1: |
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| Abstract: | During the study of oxidation and reduction of ultrafine copper particles by using high resolution electron microscopy,it has been observed that ultrafine copper particles interacted with the residual gases in the EM chamber.Some amorphous-like layers formed on the surface of the coppers first,then these layers transformed into copper oxides.As time passed,the copper ox-ides just formed were converted to a big copper particle by reduction.The copper particle will grow up with time. |
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| Keywords: | ultrafine copper particles oxidation reduction electron beam irradiation amorphouslike layer |
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