Electro less deposition is an autocatalytic chemical technique to deposit a coating of metal on a work piece with the presence of a reducing agent. Electro less nickel coating has high advantages in electroplating. In this work the changing structure of nickel deposits on aluminum and its alloys at the early stage of electro less nickel deposition using sodium hypophosphite ion used as reducing...

The carbon based coils with the nanometer scale have the 3 dimension helix geometry. We synthesized the carbon nano-coils by the use of chemical vapor deposition technique with iron and tin as the catalysts. The fabricated coils have the external diameter of ranging few hundred nm to few thousand nm. The Scanning Electro-Microscope (SEM) and Tunneling Electro-Microscope has shown detail images ...

Resistance spot welding (RSW) is widely used as a main joining technique in industry and the electrode caps are frequently replaced because of degradation during service. In this study, G type copper RSW were coated with Fe Ni based Fe3Al, FeAl, Ni3Al, NiAl alloys by Electro-Spark Deposition (ESD), providing resistance to hot deformation, oxidation Zn evaporation from sheet metal. The ESD teste...

Materials can be subjected to severe wear and corrosion due high temperature, pressure mechanical loads when used in components for the production of geothermal power. In an effort increase lifetime these thus decrease cost maintenance High-Entropy Alloy Coatings (HEACs) were developed with different coating techniques anti-wear properties. The microstructure, tribological properties CoCrFeNiMo...