Effects of Polyurethane Substrate Pre-Treatment on Pulsed Cathodic Arc Deposited DLC Films

Diamond-like carbon (DLC) films were deposited by means of pulsed cathodic arc deposition on pretreated polyurethane (PU) rubber substrates. Tetrachloroethylene was chosen as a dissolution method to remove the plasticizer added in the PU substrates. Scanning electron microscopy (SEM) and Raman spectroscopy were applied to observe and characterize the surface morphologies and compositions of the deposited films, respectively. The tribological behaviours of uncoated and coated rubbers were investigated with ring-on-disc tribo experiments under dry sliding conditions. The coefficients of friction (COFs) of the coated rubbers were 40% lower than those of uncoated rubber and the COFs of different samples decreased first and then increased slightly with the increase in temperature and the time of ultrasonic treatment under dry friction. Based on the above experiments, ultrasonic treatment with tetrachloroethylene contributes to the increase in the wear resistance of DLC films deposited on PU rubbers. The most suitable temperature and time of ultrasonic treatment with tetrachloroethylene is 50 °C for 15 min.

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Tem and Eels Investigation of a-C and ta-C Coated Field Emitters

MRS Proceedings ◽

10.1557/proc-498-83 ◽

1997 ◽

Vol 498 ◽

Cited By ~ 1

Author(s):

A. F. Myers ◽

E. B. Steel ◽

M. Q. Dingt ◽

S. M. Camphausen ◽

W. B. Choi ◽

...

Keyword(s):

Laser Ablation ◽

Amorphous Carbon ◽

Field Emitters ◽

Cathodic Arc Deposition ◽

Transmission Electron ◽

Electron Energy Loss ◽

Cathodic Arc ◽

Arc Deposition ◽

Deposited Films ◽

Deposition Techniques

ABSTRACTThe microstructure of highly sp2 bonded amorphous carbon and partially tetrahedrally bonded amorphous carbon deposited on needle-shaped molybdenum field emitters by pulsed laser ablation and cathodic arc deposition techniques was studied using transmission electron microscopy and electron energy loss spectroscopy. Undoped and nitrogen-doped films were included in this study. The undoped laser ablation films were approximately 50% sp2 at the emitter tip and 65% sp2 along the shank, while the N-doped laser ablation films were highly sp2 bonded both at the tip and along the shank. These laser ablation films were continuous and relatively uniform, exhibiting an isotropie microstructure at the emitter tip and a columnar microstructure along the shank. The cathodic arc deposited films were predominantly sp2 bonded both at the tip and along the shank; these films were non-uniform, with an isotropie microstructure at the tip and regions of isotropie, columnar, and mixed microstructure appearing along the shank.

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Corrosion resistance of TiN/TiAlN-coated ADI by cathodic arc deposition

Materials Science and Engineering A ◽

10.1016/j.msea.2005.12.014 ◽

2006 ◽

Vol 421 (1-2) ◽

pp. 182-190 ◽

Cited By ~ 48

Author(s):

Cheng-Hsun Hsu ◽

Ming-Li Chen ◽

Kuei-Laing Lai

Keyword(s):

Corrosion Resistance ◽

Cathodic Arc Deposition ◽

Cathodic Arc ◽

Arc Deposition

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XPS of Ti+TiN+(N,C) multilayer films deposited by filtered cathodic arc deposition with controlled feed gas flow rate

Surface and Coatings Technology ◽

10.1016/s0257-8972(99)00426-0 ◽

1999 ◽

Vol 120-121 ◽

pp. 618-621 ◽

Cited By ~ 7

Author(s):

Li Liuhe ◽

Xia Lifang ◽

Ma Xinxin

Keyword(s):

Flow Rate ◽

Gas Flow ◽

Multilayer Films ◽

Gas Flow Rate ◽

Cathodic Arc Deposition ◽

Cathodic Arc ◽

Arc Deposition

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Structural Characteristics of Diamond-Like Carbon Films Synthesized by Different Methods

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.743.112 ◽

2017 ◽

Vol 743 ◽

pp. 112-117

Author(s):

Alexander Zolkin ◽

Anna Semerikova ◽

Sergey Chepkasov ◽

Maksim Khomyakov

Keyword(s):

Amorphous Phase ◽

Ion Beam ◽

High Energy ◽

Carbon Films ◽

Ion Source ◽

Ordered Structure ◽

Deposition Technique ◽

Cathodic Arc Deposition ◽

Cathodic Arc ◽

Arc Deposition

In the present study, the Raman spectra of diamond-like amorphous (a-C) and hydrogenated amorphous (a-C:H) carbon films on silicon obtained using the ion-beam methods and the pulse cathodic arc deposition technique were investigated with the aim of elucidating the relation between the hardness and structure of the films. The hardness of the samples used in the present study was 19 – 45 GPa. Hydrogenated carbon films were synthesized using END–Hall ion sources and a linear anode layer ion source (LIS) on single-crystal silicon substrates. The gas precursors were CH4 and C3H8, and the rate of the gas flow fed into the ion source was 4.4 to 10 sccm. The ion energies ranged from 150 to 600 eV. a-C films were deposited onto Si substrates using the pulse cathodic arc deposition technique. The films obtained by the pulse arc technique contained elements with an ordered structure. In the films synthesized using low- (150 eV) and high-energy (600 eV) ions beams, an amorphous phase was the major phase. The significant blurriness of the diffraction rings in the electron diffraction patterns due to a large film thickness (180 – 250 nm) did not allow distinctly observing the signals from the elements with an ordered structure against the background of an amorphous phase.

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