Influence of sulfidation treatment on the structure and tribological properties of nitrogen-doped diamond-like carbon films

Diamond-like carbon (DLC) films is useful in many applications. To improve the tribological properties in DLC, we spin coat the multi-walled carbon nanotubes (CNTs) with different solution on (100) silicon. DLC was deposited by plasma enhanced chemical vapor deposition (PECVD) with C2H2and H2. The results show that the ID/IGratio is increasing with higher CNTs content while the friction coefficient and critical load are decreasing with larger CNTs contents. The decreasing friction coefficient results from graphitation on the surface due to higher sp2content. The decreasing critical load is attributed to higher internal stress. The effect of friction coefficient and CNT concentration on stress distribution is studied by a nanoscratch finite element analysis. The results indicate that low friction coefficient and high CNT concentration will reduce the stress magnitude in the film. Therefore, the decreasing friction coefficient in CNT doped DLC film with increasing CNT concentration should reduce stress in the film and is good for adhesion. The discrepancy between friction coefficient and critical load is explained in terms of high internal stress during deposition. A surface treatment on CNT before deposition to reduce internal stress is currently under investigation.

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Tribological properties of platinum/ruthenium/nitrogen doped diamond-like carbon thin films deposited with different negative substrate biases

Friction ◽

10.1007/s40544-014-0059-x ◽

2014 ◽

Vol 2 (4) ◽

pp. 317-329 ◽

Cited By ~ 4

Author(s):

Nay Win Khun ◽

Erjia Liu

Keyword(s):

Thin Films ◽

Tribological Properties ◽

Diamond Like Carbon ◽

Nitrogen Doped ◽

Carbon Thin Films

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Effect of chromium doping on high temperature tribological properties of silicon-doped diamond-like carbon films

Tribology International ◽

10.1016/j.triboint.2020.106546 ◽

2020 ◽

Vol 152 ◽

pp. 106546 ◽

Cited By ~ 2

Author(s):

Bruno J. Rodriguez ◽

Tara L. Schiller ◽

Daniela Proprentner ◽

Marc Walker ◽

C.T. John Low ◽

...

Keyword(s):

High Temperature ◽

Tribological Properties ◽

Carbon Films ◽

Diamond Like Carbon ◽

Chromium Doping ◽

Silicon Doped

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Optical and Electrical Properties of Nitrogen-Doped Diamond-Like Carbon Films Prepared by a Bipolar-Type Plasma-Based Ion Implantation

Japanese Journal of Applied Physics ◽

10.1143/jjap.51.01ac04 ◽

2012 ◽

Vol 51 (1) ◽

pp. 01AC04 ◽

Cited By ~ 4

Author(s):

Setsuo Nakao ◽

Tetsuo Soga ◽

Tsutomu Sonoda ◽

Tokuhiro Asada ◽

Naoki Kishi

Keyword(s):

Electrical Properties ◽

Ion Implantation ◽

Carbon Films ◽

Diamond Like Carbon ◽

Optical And Electrical Properties ◽

Nitrogen Doped ◽

Bipolar Type

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The Biocompatibility of Ti Alloy Improved by Nitrogen-Doped Diamond-Like Carbon Films

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.711.250 ◽

2014 ◽

Vol 711 ◽

pp. 250-254 ◽

Cited By ~ 1

Author(s):

Wufanbieke Baheti ◽

Ming Xin Li ◽

Fu Guo Wang ◽

Jin Ge Song ◽

Long Hua Xu ◽

...

Keyword(s):

Contact Angle ◽

Photoelectron Spectroscopy ◽

Carbon Film ◽

Chemical Vapor ◽

Carbon Films ◽

Diamond Like Carbon ◽

Measuring Device ◽

Nitrogen Doped ◽

Angle Measuring ◽

N Doping

The nitrogen-doped diamond-like carbon film was prepared on Ti6Al4V alloy by using plasma enhanced chemical vapor deposition (PECVD) technique,and its biocompatibility was studied.The surface morphology,chemical composition and contact angle were measured by scanning electron microscope (SEM),X-ray photoelectron spectroscopy(XPS),Raman Spectrometer and contact angle measuring device. Finally, the proliferation rate and cellular morphology of 3T3-E1 osteoblast cells on different sample surfaces were tested and Image J software was used to statistically analyze the count of the adhered cells. The results showed that cell adhesion and proliferation were significantly (P<0.05) increased on nitrogen-doped diamond-like carbon films , which illustrated that N doping improved the biocompatibility of DLC films. This finding has potential clinical application value to modify titanium alloy for new bone formation.

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