Laser diamond-like carbon films

Creasy and Brenna ° continued their previous work by examining a copolymer of ethylene and tetrafluoroethylene (ETFE), polyphenylene sulfide (EPS), and a diamond-like carbon film (DEC). Ablation of these samples gave comparison information on the formation of fullerenes in the presence of H, S, and F atoms. In the case of ETFE, a large Cso peak was observed in the spectra, which showed a strong dependence on the number of laser pulses and laser power density. 

Chang, Y. Y., Wang, D. Y. and Wu, W. T., Catalysis effects of metal doping on wear properties of diamond-like carbon films deposited by a cathodic-arc activated deposition process. Thin Solid Films, 420,2002,241-247. Wei, Q., Narayan, R. J., Narayan, J., Sankar, J. and Sharma, A. K., (1998), Improvement of wear resistance of pulsed laser deposited diamond-like caibai films through incorporation of metals. Materials Science and Engineering, B53,1998,262-266. 

Laser Assisted Vapor Deposition Processes A variant of the evaporation process which has recently been introduced for deposition of superconducting and diamond or diamond like carbon films is the use... 

In Section 2 we showed that the properties of amorphous carbon vary over a wide range. Graphite-like thin films are similar to other carbonaceous materials (glassy carbon, and the like) in their electrode behavior. Redox reactions proceed in a quasi-irreversible regime on these films. In particular, the cathodic reduction of nitrate previously studied on crystalline diamond electrodes (see Section 6.4.2) was performed with amorphous carbon films prepared by UHV laser deposition and comprising both sp2- and sp3-carbon [152], Reduction current density as high as 2 mA cur 2 was reached in neutral or alkaline solutions. The use of such electrodes in microgravimetry is discussed [153]. 

Laser ablation of a graphite target (refer to Figure 14) can produce carbon ion plasma. The resulting films are diamond like if the laser power exceeds a certain threshold. The diamond like film is found to consist of a nano-scale mixture of diamond grains embedded in an amorphous carbon matrix. It has the advantage of high hardness yet moderate internal stress. Cuomo et al. compared the ion beam sputtered... 

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