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Fabrication and properties of iron-aluminium and Fe-Al-chromium intermetallic coating on ferrous substrates

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Fe-Al and Fe-Al-Cr coatings were deposited on low carbon and stainless steel by aluminium and chromium diffusion using a halide-activated pack cementation process. Thickness, phase composition and chemical composition profiles of the coatings and associated diffusion zone were determined. The microstructural characteristics and ductility of the coatings were found to depend critically on pack cementation parameters such as chemical composition of the powder mixture and temperature vs time profile during diffusion treatment, The resistance of the coatings to aqueous corrosion conditions is discussed in relation to their structure and chemical composition.

Fabrication and properties of plasma-sprayed Al2O3/TiO2 composite coatings: A role of nano-sized TiO2 addition.

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Fabrication and properties of silverized glass fiber by dopamine functionalization and electroless plating.

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JES

Fabrication and properties of thermal sprayed stainless steel-based nanocomposite coatings.

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SURF Stainless steel-based feedstock powders with nano-iron oxide particles (from direct addition and thermal oxidation) were prepared by ball milling and oxidation process, respectively. It was found that iron oxide nanoparticles were on the surface of stainless steel powders in the form of particulates (deliberate addition of magnetite and hematite) or nanoplatelets (thermal oxidation). The powders were thermal sprayed by low velocity oxy-fuel (LVOF) technique. The stainless steel-based coatings had the typical thermal spray microstructure, including splats, oxide layers, unmelted particles and pores. There were no nanoparticles seen in the microstructure due to complete oxide melting at the flame spray temperature and iron oxide in all coatings was in the form of hematite. Considering physical properties, porosity was decreased when there were second phase nanoparticles and thickness was very similar except the coating with hematite addition. Hardness of the coatings was slightly increased when incorporating with iron oxide nanoparticles. Sliding wear rate and friction coefficient of the nanocomposite coatings were lower than that of the pure stainless steel. Iron oxide nanoparticles could improve hardness and sliding wear resistance in the stainless steel-based coatings due to an increasing amount of iron oxide in the coatings.

Fabrication and Properties of Vitreous Silica Films Prepared by Flame Hydrolysis Deposition.

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MCP

Fabrication and Surface Characterization of Pulsed Reactive Closed-Field Unbalanced Magnetron Sputtered Amorphous Silicon Nitride Films.

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Fabrication and thermal analysis of a copper/diamond/copper thermal spreading device.

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Fabrication and tribological properties of Al2O3/TiC ceramic with nano-textures and WS2/Zr soft-coatings.

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Fabrication and tribological properties of composite coatings produced by lithographic and microbeading methods.

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Fabrication and tribological properties of titanium nitride coatings incorporating solid lubricant microreservoirs.

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Fabrication by magnetron sputtering of Al-Cu-Fe quasicrystalline films for tribological applications

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SURF Al-Cu-Fe (Al65Cu20Fe15) films were fabricated using RF triode magnetron sputtering technique. As-sputtered Al-Cu-Fe films had amorphous structure. Al-Cu-Fe film annealed at 750°C for 2 h had an icosahedral quasicrystalline structure, but annealing at temperatures from 200°C to 550°C produced mixed structure of amorphous and quasicrystalline phases. Hardness and elastic modulus of sputtered Al-Cu-Fe films (9.44 GPa and 114.4 GPa, resp.) increased as quasicrystalline phase increased on annealing. Al-Cu-Fe film annealed at 550°C for 1 h had hardness of 13.49 GPa and Young s modulus of 141.4 GPa. Systematic increase in wear resistance with increasing annealing temp. was observed, based on scratch track width measurements. Both as-sputtered (amorphous) and annealed (amorphous + quasicrystalline) Al-Cu-Fe films had low coeffs. of friction (0.09-0.11) that were of same order as for titanium nitride films produced by reactive ion plating.

Fabrication Details, Surface Finish Requirements, and Proper Design Considerations for Tanks and Vessels to be Lined for Immersion Service

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Fabrication Details, Surface Finish Requirements, and Proper Design Considerations for Tanks and Vessels to be Lined for Immersion Service

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Fabrication Details, Surface Finish Requirements, and Proper Design Considerations for Tanks and Vessels to be Lined for Immersion Service

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Fabrication including sol-gel processing

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Aqueous silica dispersion is mixed with e.g. dimethyldiethoxysilane, mixture gelates to form hydrophobic silicaceous network.