| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Formation Mechanism of Micropores on the Surface of Pure Aluminum Induced by High-Current Pulsed Electron Beam Irradiation |
| ZOU Yang, CAI Jie, WAN Ming-Zhen, LV Peng, GUAN Qing-Feng**
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College of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013
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| Cite this article: |
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ZOU Yang, CAI Jie, WAN Ming-Zhen et al 2011 Chin. Phys. Lett. 28 116102 |
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Abstract The mechanism of micropores formed on the surface of polycrystalline pure aluminum under high-current pulsed electron beam (HCPEB) irradiation is explained. It is discovered that dispersed micropores with sizes of 0.1–1 µm on the irradiated surface of pure aluminum can be successfully fabricated after HCPEB irradiation. The dominant formation mechanism of the surface micropores should be attributed to the formation of supersaturation vacancies within the near surface during the HCPEB irradiation and the migration of vacancies along grain boundaries and/or dislocations towards the irradiated surface. It is expected that the HCPEB technique will become a new method for the rapid synthesis of surface porous materials.
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| Keywords:
61.80.-x
81.40.Wx
81.65.-b
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Received: 25 May 2011
Published: 30 October 2011
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| PACS: |
61.80.-x
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(Physical radiation effects, radiation damage)
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81.40.Wx
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(Radiation treatment)
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81.65.-b
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(Surface treatments)
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