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In this paper, high-current pulsed electron beam (HCPEB) was used to irradiate the polycrystalline pure copper. The vacancy defect clusters of the irradiated surface layer have been investigated by using transmission electron microscopy. Very dense vacancy defect clusters involving square cells, vacancy dislocation loops and stacking fault tetrahedra were formed after HCPEB irradiation. It suggests that the very high stress and high strain rate induced by rapid heating and cooling due to HCPEB irradiation could cause the shifting of whole atomic planes synchronously, which is the probable mechanism of the formation of the vacancy defect clusters. Additionally, it was established by scanning electron microscopy investigations that dense, fine and dispersed micropores on the irradiated surface of pure copper can be successfully fabricated by using HCPEB irradiation. The dominating formation mechanism of surface micropores should be attributed to the formation of supersaturation vacancies within the near-surface introduced during HCPEB irradiation and vacancy migration along grain boundaries and (or) dislocations towards the irradiated surface. The present results indicate that HCPEB technique may become a new method for rapid synthesis of surface porous materials.
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Keywords:
- high-current pulsed electron beam /
- copper /
- vacancy defect clusters /
- micropore
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[2] Proskurovsky D I, Rotshtein V P, OzurGE, Ivanov Y F, Markov A B 2000 Surf. Coat. Technol. 125 49
[3] Grosdidier T, Zou J X, Wu J, Zhang X D, Zhang K M, Wu A M, Hao S Z, Dong C 2009 Adv. Mater. Sci. Technol. 614 99
[4] Ivanov Y F, Gromov V E, Konovalov S V 2009 Arab. J. Sci. Engng. 34 219
[5] Hao S Z, Zhang X D, Mei X X, Grosdidier T, Dong C 2008 Mater. Lett. 62 414
[6] Guan Q F, An C X, Qin Y, Zou J X, Hao S Z, Zhang Q Y, Dong C, Zou G T 2005 Acta Phys. Sin. 54 3927 (in Chinese) [关庆丰、安春香、秦 颖、邹建新、郝胜志、张庆瑜、董 闯、邹广田 2005 54 3927]
[7] Cheng D Q, Guan Q F, Zhu J, Qiu D H, Cheng X W, Wang X T 2009 Acta Phys. Sin. 58 7300 (in Chinese) [程笃庆、关庆丰、朱 健、邱东华、程秀围、王雪涛 2009 59 7300]
[8] Dong X J, Hu Y F, Wu Y Y 2010 Chin. Phys. B19 013601
[9] Ackley M W, Saxena S U R, Saxena H 2003 Micropor. Mesopor. Mater. 61 25
[10] Hasegawa Y, Sotowa K, Kusakabe K, Morooka S 2002 Micropor. Mesopor. Mater. 53 37
[11] Guan Q F, Pan L, Zou H, Zou G T 2004 J. Mater. Sci. 39 6349
[12] Guan Q F, Chen B, Zhang Q Y, Dong C, Zou G T 2008 Acta Phys. Sin.58 392 (in Chinese) [关庆丰、陈 波、张庆瑜、董 闯、邹广田2008 58 392]
[13] Guan Q F, Cheng D Q, Qiu D H, Zhu J, Wang X T, Cheng X W 2009 Acta Phys. Sin. 58 4846 (in Chinese) [关庆丰、程笃庆、邱冬华、朱 健、王雪涛、程秀围 2009 58 4846]
[14] Guan Q F, Wang S Q, Cui X H, Zhang Q Y, Dong C 2007 ISIJ Int.47 1375
[15] Guan Q F, Qiu D H, Li Y, Peng D J, Gu Q Q, Wang X T 2010 Acta Phys. Sin. 59 in press (in Chinese) [关庆丰、邱冬华、李 艳、彭冬晋、顾倩倩、王雪涛 2010 59 待发表]
[16] Cheng X W, Guan Q F, Fan X H, Chen B 2010 Chin. Phys. B 19 016103
[17] Kiritani M 1997 Mater.Chem. Phys. 50 133
[18] Hardy G J, Jenkins M L 1985 Philos. Mag. A 52 19
[19] Kiritani M 1997 Mater. Chem. Phys. 50 133
[20] Kojima S, Satoh Y, Taoka H, Ishida I, Yoshiie T, Kiritani M 1989 Philos. Mag. A59 519
[21] Sigle W, Jenkins M L, Hutchison J L 1988 Philos. Mag. Lett. 57 267
[22] Zou H, Jing H Y, Wang Z P, Guan Q F 2010 Acta Phys. Sin. 59 in press (in Chinese) [邹 慧、荆洪阳、王志平、关庆丰2009 59 待发表]
[23] Kiritani M, Satoh Y, Arakawak K, Ogasawara Y, Arai S, Shimomura Y 1999 Philos. Mag. Lett. 79 797
[24] Pogrebnjak A D, Mikhaliov A D, Progrebnjak N A, Tsvintarnaya Y V, Lavrentiev V I, Iljashenko M, Valyaev A N, Bratushka S, Zecca A, Sandrik R 1998 Phys. Lett. A 241 357
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[1] Proskurovsky D I, Rotshtein V P, Ozur G E, Markov A B, Nazarov D S 1998 J. Vac. Sci. Technol. A 16 2480
[2] Proskurovsky D I, Rotshtein V P, OzurGE, Ivanov Y F, Markov A B 2000 Surf. Coat. Technol. 125 49
[3] Grosdidier T, Zou J X, Wu J, Zhang X D, Zhang K M, Wu A M, Hao S Z, Dong C 2009 Adv. Mater. Sci. Technol. 614 99
[4] Ivanov Y F, Gromov V E, Konovalov S V 2009 Arab. J. Sci. Engng. 34 219
[5] Hao S Z, Zhang X D, Mei X X, Grosdidier T, Dong C 2008 Mater. Lett. 62 414
[6] Guan Q F, An C X, Qin Y, Zou J X, Hao S Z, Zhang Q Y, Dong C, Zou G T 2005 Acta Phys. Sin. 54 3927 (in Chinese) [关庆丰、安春香、秦 颖、邹建新、郝胜志、张庆瑜、董 闯、邹广田 2005 54 3927]
[7] Cheng D Q, Guan Q F, Zhu J, Qiu D H, Cheng X W, Wang X T 2009 Acta Phys. Sin. 58 7300 (in Chinese) [程笃庆、关庆丰、朱 健、邱东华、程秀围、王雪涛 2009 59 7300]
[8] Dong X J, Hu Y F, Wu Y Y 2010 Chin. Phys. B19 013601
[9] Ackley M W, Saxena S U R, Saxena H 2003 Micropor. Mesopor. Mater. 61 25
[10] Hasegawa Y, Sotowa K, Kusakabe K, Morooka S 2002 Micropor. Mesopor. Mater. 53 37
[11] Guan Q F, Pan L, Zou H, Zou G T 2004 J. Mater. Sci. 39 6349
[12] Guan Q F, Chen B, Zhang Q Y, Dong C, Zou G T 2008 Acta Phys. Sin.58 392 (in Chinese) [关庆丰、陈 波、张庆瑜、董 闯、邹广田2008 58 392]
[13] Guan Q F, Cheng D Q, Qiu D H, Zhu J, Wang X T, Cheng X W 2009 Acta Phys. Sin. 58 4846 (in Chinese) [关庆丰、程笃庆、邱冬华、朱 健、王雪涛、程秀围 2009 58 4846]
[14] Guan Q F, Wang S Q, Cui X H, Zhang Q Y, Dong C 2007 ISIJ Int.47 1375
[15] Guan Q F, Qiu D H, Li Y, Peng D J, Gu Q Q, Wang X T 2010 Acta Phys. Sin. 59 in press (in Chinese) [关庆丰、邱冬华、李 艳、彭冬晋、顾倩倩、王雪涛 2010 59 待发表]
[16] Cheng X W, Guan Q F, Fan X H, Chen B 2010 Chin. Phys. B 19 016103
[17] Kiritani M 1997 Mater.Chem. Phys. 50 133
[18] Hardy G J, Jenkins M L 1985 Philos. Mag. A 52 19
[19] Kiritani M 1997 Mater. Chem. Phys. 50 133
[20] Kojima S, Satoh Y, Taoka H, Ishida I, Yoshiie T, Kiritani M 1989 Philos. Mag. A59 519
[21] Sigle W, Jenkins M L, Hutchison J L 1988 Philos. Mag. Lett. 57 267
[22] Zou H, Jing H Y, Wang Z P, Guan Q F 2010 Acta Phys. Sin. 59 in press (in Chinese) [邹 慧、荆洪阳、王志平、关庆丰2009 59 待发表]
[23] Kiritani M, Satoh Y, Arakawak K, Ogasawara Y, Arai S, Shimomura Y 1999 Philos. Mag. Lett. 79 797
[24] Pogrebnjak A D, Mikhaliov A D, Progrebnjak N A, Tsvintarnaya Y V, Lavrentiev V I, Iljashenko M, Valyaev A N, Bratushka S, Zecca A, Sandrik R 1998 Phys. Lett. A 241 357
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