scholarly journals Diamond Like Carbon Films (DLC) Coating Effect on Friction Reducation of Heat-resistant Polymers.

2001 ◽  
Vol 52 (12) ◽  
pp. 878-882 ◽  
Author(s):  
Shojiro MIYAKE ◽  
Tadashi SAITOH ◽  
Shuichi WATANABE ◽  
Eiichi HAYASHI ◽  
Takashi NAKAMARU
Keyword(s):  
Carbon Films ◽  
Diamond Like Carbon ◽  
Heat Resistant ◽  
Dlc Coating

Evaluation of the Adhesion of Diamond-Like-Carbon Coronary Stent

2011 ◽  
Vol 228-229 ◽  
pp. 714-718
Author(s):  
Hai Quan Feng ◽  
Zhi Guo Wang ◽  
Yamashita Shuzou ◽  
Nakatani Tatsuyuki
Keyword(s):  
Plastic Deformation ◽  
Artificial Heart ◽  
Heart Valves ◽  
Carbon Films ◽  
Coronary Stents ◽  
Diamond Like Carbon ◽  
Dlc Coating ◽  
Artificial Heart Valves ◽  
Excellent Adhesion ◽  
Different Thickness

The excellent biocompatibility and antithrombotic properties of Diamond-like Carbon films (DLC) have been widely confirmed in several clinical trials of artificial heart valves and blood vessels. In recent years many researchers were doing a lot of research coating DLC as the surface of coronary stents. Considering coronary stents’ plastic deformation occurred in installation and expansion process, surface coating was required to follow the plastic deformation of substrate materials, and it should be with excellent adhesion, without cracking and falling off. According to this, we created a method with different concentration gradient of silicon content on different thickness of DLC coating, and found a plastic deformation required by DLC coated stent, which with excellent adhesion and not cracking. In order to facilitate analysis and comparison, we compared it with two products abusing on the market under the same conditions and got a good result, which provided strong evidence for the product development of DLC coated coronary stents.

Field Emission from Pure and Nitrogen-Incorporated Diamond-Like-Carbon Films

1996 ◽  
Vol 06 (C5) ◽  
pp. C5-91-C5-95 ◽  
Author(s):  
S. Lee ◽  
B. Chung ◽  
T.-Y. Ko ◽  
H. Cho ◽  
D. Jeon ◽  
...  
Keyword(s):  
Field Emission ◽  
Carbon Films ◽  
Diamond Like Carbon

Microstructure Evolution Induced by Ultraviolet Light Irradiation in Ti-Si Codoped Diamond-like Carbon films

2014 ◽  
Vol 29 (9) ◽  
pp. 941
Author(s):  
JIANG Jin-Long ◽  
WANG Qiong ◽  
HUANG Hao ◽  
ZHANG Xia ◽  
WANG Yu-Bao ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Microstructure Evolution ◽  
Carbon Films ◽  
Light Irradiation ◽  
Diamond Like Carbon ◽  
Ultraviolet Light Irradiation

An Study of Influence of Imperfections on the Delamination of Diamond-Like Carbon Films

2002 ◽  
Vol 719 ◽  
Author(s):  
Myoung-Woon Moon ◽  
Kyang-Ryel Lee ◽  
Jin-Won Chung ◽  
Kyu Hwan Oh
Keyword(s):  
Cross Sections ◽  
Focused Ion Beam ◽  
Imaging System ◽  
Ion Beam ◽  
Carbon Films ◽  
Diamond Like Carbon ◽  
Glass Substrates ◽  
Atomic Force ◽  
Initiation And Propagation

AbstractThe role of imperfections on the initiation and propagation of interface delaminations in compressed thin films has been analyzed using experiments with diamond-like carbon (DLC) films deposited onto glass substrates. The surface topologies and interface separations have been characterized by using the Atomic Force Microscope (AFM) and the Focused Ion Beam (FIB) imaging system. The lengths and amplitudes of numerous imperfections have been measured by AFM and the interface separations characterized on cross sections made with the FIB. Chemical analysis of several sites, performed using Auger Electron Spectroscopy (AES), has revealed the origin of the imperfections. The incidence of buckles has been correlated with the imperfection length.

Low Temperature Internal Friction of Diamond-Like Carbon Films

2002 ◽  
Author(s):  
Xiao Liu ◽  
D. M. Photiadis ◽  
J. A. Bucaro ◽  
J. F. Vignola ◽  
B. H. Houston ◽  
...  
Keyword(s):  
Low Temperature ◽  
Internal Friction ◽  
Carbon Films ◽  
Diamond Like Carbon

scholarly journals Surface Reformation of Medical Devices with DLC Coating

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 376
Author(s):  
Mao Kaneko ◽  
Masanori Hiratsuka ◽  
Ali Alanazi ◽  
Hideki Nakamori ◽  
Kazushige Namiki ◽  
...  
Keyword(s):  
High Pressure ◽  
Medical Devices ◽  
Diamond Like Carbon ◽  
Steam Sterilization ◽  
Dlc Coatings ◽  
Chrome Plating ◽  
Living Body ◽  
Dlc Coating ◽  
Pressure Steam ◽  
Adhesion Friction

We evaluated the adhesion, friction characteristics, durability against bodily acids, sterilization, cleaning, and anti-reflection performance of diamond-like carbon (DLC) coatings formed as a surface treatment of intracorporeal medical devices. The major coefficients of friction during intubation in a living body in all environments were lower with DLC coatings than with black chrome plating. DLC demonstrated an adhesion of approximately 24 N, which is eight times stronger than that of black chrome plating. DLC-coated samples also showed significant stability without being damaged during acid immersion and high-pressure steam sterilization, as suggested by the results of durability tests. In addition, the coatings remained unpeeled in a usage environment, and there was no change in the anti-reflection performance of the DLC coatings. In summary, DLC coatings are useful for improving intracorporeal device surfaces and extending the lives of medical devices.

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