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学科主题: 口腔医学
题名:
Surface characteristics and corrosion behaviour of WE43 magnesium alloy coated by SiC film
作者: Li, M.1; Cheng, Y.1; Zheng, Y. F.1,2; Zhang, X.1; Xi, T. F.1; Wei, S. C.1,3,4
关键词: WE43 alloy ; SiC film ; PECVD ; Corrosion ; Hemocompatibility
刊名: APPLIED SURFACE SCIENCE
发表日期: 2012-01-15
DOI: 10.1016/j.apsusc.2011.11.040
卷: 258, 期:7, 页:3074-3081
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
研究领域[WOS]: Chemistry ; Materials Science ; Physics
关键词[WOS]: AMORPHOUS-SILICON CARBIDE ; SIMULATED BODY-FLUID ; CHEMICAL-VAPOR-DEPOSITION ; CORONARY-ARTERIES ; INTRAVASCULAR ULTRASOUND ; BIOMEDICAL APPLICATIONS ; MG ; PLATELET ; STENTS ; PECVD
英文摘要:

Amorphous SiC film has been successfully fabricated on the surface of WE43 magnesium alloy by plasma enhanced chemical vapour deposition (PECVD) technique. The microstructure and elemental composition were analyzed by transmission electron microscopy (TEM), glancing angle X-ray diffraction (GAXRD) and X-ray photoelectron spectroscopy (XPS), respectively. The immersion test indicated that SiC film could efficiently slow down the degradation rate of WE43 alloy in simulated body fluid (SBF) at 37 +/- 1 degrees C. The indirect toxicity experiment was conducted using L929 cell line and the results showed that the extraction medium of SiC coated WE43 alloys exhibited no inhibitory effect on L929 cell growth. The in vitro hemocompatibility of the samples was investigated by hemolysis test and blood platelets adhesion test, and it was found that the hemolysis rate of the coated WE43 alloy decreased greatly, and the platelets attached on the SiC film were slightly activated with a round shape. It could be concluded that SiC film prepared by PECVD made WE43 alloy more appropriate to biomedical application. (C) 2011 Elsevier B. V. All rights reserved.

语种: 英语
所属项目编号: 30870623 ; 31070846 ; 2009CB930004 ; 2012CB619102 ; 2011AA030103
项目资助者: National Natural Science Foundation of China ; National Basic Research Program (973) of China ; National High Technology Research and Development Program of China
WOS记录号: WOS:000299162300139
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/59628
Appears in Collections:北京大学口腔医学院_期刊论文

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作者单位: 1.Peking Univ, Acad Adv Interdisciplinary Studies, Ctr Biomed Mat & Tissue Engn, Beijing 100871, Peoples R China
2.Peking Univ, Coll Engn, Dept Adv Mat & Nanotechnol, Beijing 100871, Peoples R China
3.Peking Univ, Sch Stomatol, Dept Oral & Maxillofacial Surg, Beijing 100871, Peoples R China
4.Peking Univ, Hosp Stomatol, Dept Oral & Maxillofacial Surg, Beijing 100871, Peoples R China

Recommended Citation:
Li, M.,Cheng, Y.,Zheng, Y. F.,et al. Surface characteristics and corrosion behaviour of WE43 magnesium alloy coated by SiC film[J]. APPLIED SURFACE SCIENCE,2012,258(7):3074-3081.
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