Corrosion and ion release behavior of ultra-fine grained bulk pure   copper fabricated by ECAP in Hanks solution as potential biomaterial for   contraception

doi:10.1016/j.matlet.2009.11.065

CORC > 北京大学 > 工学院

	Corrosion and ion release behavior of ultra-fine grained bulk pure copper fabricated by ECAP in Hanks solution as potential biomaterial for contraception
	Xu, X. X. ; Nie, F. L. ; Zhang, J. X. ; Zheng, W. ; Zheng, Y. F. ; Hu, C. ; Yang, G.
刊名	材料快报
	2010
关键词	Metals and alloys Nanomaterials Ultra-fine grained copper ECAP Corrosion behavior Ion release SIMULATED UTERINE FLUID DEVICE OXYGEN
DOI	10.1016/j.matlet.2009.11.065
英文摘要	Ultra-fine grained (UFG) bulk pure copper has been successfully fabricated by equal-channel angular pressing (ECAP), with the grain size about 380 nm after 8 passes. The potentiodynamic polarization results of the ECAP copper specimens tested in Hanks solution revealed that the corrosion current of UFG copper is higher than that of the coarse grained copper. The cupric ion release behaviors of UFG copper immersed in Hanks solution for 30 days only displayed a burst release during the first 3 days (in comparison to the 1-2 months for the conventional Cu) from 115 mu g/day to 12.5 mu g/day, after which the ion release remained constant and slow. During the immersion experiments. Cu(2)O was the only corrosion product found on the surface and it took 10 days or so to form a uniform Cu(2)O layer. Uniform corrosive damage on the surface and few localized corrosion is observed. The above results indicate that UFG copper could have high potential as biomedical materials for contraception. (C) 2009 Elsevier B.V. All rights reserved.; Materials Science, Multidisciplinary; Physics, Applied; SCI(E); EI; 9; ARTICLE; 4; 524-527; 64
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/244838]
专题	工学院
推荐引用方式 GB/T 7714	Xu, X. X.,Nie, F. L.,Zhang, J. X.,et al. Corrosion and ion release behavior of ultra-fine grained bulk pure copper fabricated by ECAP in Hanks solution as potential biomaterial for contraception[J]. 材料快报,2010.
APA	Xu, X. X..,Nie, F. L..,Zhang, J. X..,Zheng, W..,Zheng, Y. F..,...&Yang, G..(2010).Corrosion and ion release behavior of ultra-fine grained bulk pure copper fabricated by ECAP in Hanks solution as potential biomaterial for contraception.材料快报.
MLA	Xu, X. X.,et al."Corrosion and ion release behavior of ultra-fine grained bulk pure copper fabricated by ECAP in Hanks solution as potential biomaterial for contraception".材料快报 (2010).