NITROGEN DOPED DIAMOND LIKE CARBON THIN FILMS ON PTFE FOR ENHANCED HEMOCOMPATIBILITY

被引：0
|
作者：
Srinivasan, S. [1 ]
Yang, Q. [1 ]
Vasilets, V. N. [2 ]
机构：
[1] Univ Saskatchewan, Dept Mech Engn, 57 Campus Dr, Saskatoon, SK S7N 5A9, Canada
[2] Res Inst Transplantol & Artitficial Organs, Res Ctr Biomat, Moscow 123182, Russia
来源：
NANOSTRUCTURED MATERIALS AND NANOTECHNOLOGY II | 2009年 / 29卷 / 08期
基金：
加拿大自然科学与工程研究理事会;
关键词：
AMORPHOUS-CARBON; FIELD-EMISSION; DEPOSITION;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Diamond like carbon (DLC) doped with nitrogen thin films were synthesized on silicon and Polytetrafluroethylene (PTFE) substrates using methane, argon and nitrogen mixture ion beams in a dual ion beam deposition (DIBD) system and hot wire plasma sputtering of graphite in argon and nitrogen gas mixture. The chemical composition, electronic structure. morphology. tribological. and hemocompatible properties of the DLC films were investigated by various methods including X-ray Photoclectron Spectroscopy. Scanning Electron Microscopy, Raman Spectroscopy. scratching, nanoindentation. ball-on-disc wear tests, and platelet adhesion technique. The effects of nitrogen doping and ion beam energy on the tribological properties of DLC thin films were studied. The results show that ion deposited films are dense and smooth and that nitrogen doped DLC thin films exhibits much lower friction coefficient and enhanced hemocompatibility. Nitrogen doping improved the hardness and hemocompatibility of DLC thin films.
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页码：233 / +
页数：3
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