NDLI: Oxygen Plasma Ion Implantation of Biomedical Titanium Alloy

Content Provider	IEEE Xplore Digital Library
Author	Xiubo Tian Chunzhi Gong Shiqin Yang Zhaojun Luo Ricky King-Yu Fu Chu, P.K.
Copyright Year	1973
Abstract	Titanium alloys have attracted more attention as biomaterials. Plasma ion implantation is utilized in this paper to improve the bioactivity, wear resistance, and corrosion resistance of Ti6Al4V alloy. As an effective surface-modification technique, plasma ion implantation eliminates the limitation of light of sight compared to conventional beam ion implantation. The plasma is excited by an RF power ranging from 200 to 400 W with sample bias of 20 kV. The results show the improvement in hardness, corrosion resistance, and tribological properties. Longer treatment time or higher RF power leads to a higher wear resistance. The friction coefficient rapidly increases at 500 s with the sample treated with the RF power of 400 W, while it changes abruptly at 1500 s with the sample processed with the RF power of 600 W. After the treatment, the corrosion resistance is considerably improved, which demonstrate that the potential of the samples shift positively while the corrosion current decreases substantially. The corrosion current may decrease by a factor of six compared to that of the control sample. The precipitates containing phosphorous and calcium appear, indicating a better activity while nothing grows on the untreated sample
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	1235
Ending Page	1240
Page Count	6
File Size	403012
File Format	PDF
ISSN	00933813
Volume Number	34
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Oxygen Plasma immersion ion implantation Ion implantation Titanium alloys Immune system Corrosion Radio frequency Plasma properties Surface resistance Particle beams titanium Bioactivity biomaterials oxygen plasma plasma ion implantation
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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