Surface and Coatings Technology
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Investigation of C/Al–Cr–N multilayer coatings for stainless steel bipolar plate in polymer electrolyte membrane fuel cells
Surface and Coatings Technology 258:1068 (2014)To improve the corrosion resistance and surface conductivity of stainless steel bipolar plate, C/Al–Cr–N multilayer coatings with varying Al:Cr target current are deposited on stainless steel 316L (SS316L) by magnetron sputtering. Scanning electron microscope (SEM) results show that the co...
Cu film deposition using a vacuum arc with a black-body electrode assembly
Surface and Coatings Technology 258:908 (2014)A vacuum arc with black body electrode configuration is used to deposit thin Cu films on glass substrates. In this configuration, a cup shaped anode, a refractory insulator, and a water cooled cathode form an enclosed volume from which dense plasma of cathode material was extracted through...
Sliding properties of Zr-DLC coatings: The effect of tribolayer formation
Surface and Coatings Technology 258:734 (2014)We investigate the sliding of hydrogenated and non-hydrogenated DLC coatings alloyed with zirconium; pure DLC films are used as reference. The coatings were deposited by magnetron sputtering in Ar (non-hydrogenated) and Ar/methane atmosphere (hydrogenated) onto steel substrates and silicon wafers. T...
Tantalum oxynitride thin films: Mechanical properties and wear behavior dependence on growth conditions
Surface and Coatings Technology 258:587 (2014)Tantalum oxynitride (TaNxOy) thin films were produced by magnetron sputtering. This work analyzes and compares the mechanical properties and the wear behavior of the films, taking into account the differences promoted by changes in composition and structure, caused by the variation of the...
Microstructure and oxidation behavior of Al + Si co-deposited coatings on nickel-based superalloys
Surface and Coatings Technology 258:347 (2014)We present an experiment to modify γ-Ni+γ′-Ni3Al coating by co-deposition of Al and Si in order to improve the performance of coatings. In this study, microstructure and oxidation behavior of Al and Si co-deposited diffusion coatings were investigated. These coatings were deposited by Pt electroplat...
Influence of formic acid on the microstructure and corrosion resistance of Zn–Ni alloy coatings by electrodeposition
Surface and Coatings Technology 258:232 (2014)In this study the effect on the deposition efficiency and corrosion resistance of Zn–Ni electrodeposits after the addition of formic acid (0.03 to 0.53mol/L) to the plating bath is investigated. The corrosion resistance was evaluated in an aerated solution of 2.0mol/L NaOH and 0.5mol/L NaC...
In situ high-temperature scanning tunneling microscopy studies of thermochemical stability of rutile-TiO2(110) and 6H–SiC(0001)
Surface and Coatings Technology 257:348 (2014)We present results from our recent studies of the kinetics of: TiO2(110) surface structural evolution as a function of gas chemistry and SiC(0001) surface graphitization in ultra-high vacuum. We expect that similar studies carried out on other technologically-important materials can help the design...
Analysis of in situ XRD measurements for low energy ion beam nitriding of austenitic stainless steel
Surface and Coatings Technology 256:64 (2014)The formation of expanded austenite after nitrogen insertion into austenitic stainless steel, CoCr or Ni base alloys is still not completely understood. Ex situ X-ray diffraction (XRD) investigations, which can be very sophisticated nowadays, lack the exact time evolution while additional...
Electroless deposition and evaluation of Cu/multiwalled carbon nanotube composite films on acrylonitrile butadiene styrene resin
Surface and Coatings Technology 254:224 (2014)Cu/multiwalled carbon nanotube (MWCNT) composite films were fabricated by electroless deposition on acrylonitrile butadiene styrene (ABS) resin substrates. Four types of MWCNTs with different dimensions were added to the electroless copper plating baths together with the dispersants sodium...
Effect of TGO creep on top-coat cracking induced by cyclic displacement instability in a thermal barrier coating system
Surface and Coatings Technology 254:410 (2014)I crack, whereas the shear stress is predominant around the periphery of the instability zone and causes a mode II crack. Both the tensile and shear stresses can be reduced by TGO creep which restrains the morphology distortion of the instability zone during thermal cycling. Furthermore, TGO creep c...