Nickel–Iron coating was formed from a sulfate base electroplating bath under current density of 3 A/dm 2 and turbulence 300 rpm on previously prepared cylindrical steel substrate. In order to obtain sample including nickel composite coating, different amounts alumina particle powder were added the plating solution in question. By adding quantities ferrous 2.5 rpm, an optimal containing 20 g/L o...

In recent years, a lot of research has been done in the field of producing soft magnetic nano composites by means of mechanical alloying. These materials indicate more electrical resistance and permeability in comparison with soft magnetic composites (SMCs). In this research, reduction of silicothermal mixed powder (Nickel-oxide, Silicon and Iron) was carried out by mechanical alloying to form ...

in this paper, cubic nickel oxide nanoparticles were successfully prepared by solid-state thermal decomposition of nickel(ii) macrocyclic schiff-base complex at 450°c for 3 h without employing toxic solvent or surfactant and complicated equipment. nickel(ii) macrocyclic schiff-base complex was synthesized by the reaction of 1,2-bis(2-formyl-3-methoxyphenyl)propane, nicl2•6h2o and 1,3-phenylened...

in this paper, plate-like nio nanoparticles were prepared by one-pot solid-state thermal decomposition of nickel (ii) schiff base complex as new precursor. first, the nickel (ii) schiff base precursor was prepared by solid-state grinding using nickel (ii) nitrate hexahydrate, ni(no3)2∙6h2o, and the schiff base ligand n,n′-bis-(salicylidene) benzene-1,4-diamine) for 30 min without using any solv...

Ni and Cu elemental powder mixtures containing 25, 50, and 75% at Cu were subjected to mechanical alloying in a planetary ball mill under various milling times. Structural evolution was analyzed by means of X-ray diffraction and scanning electron microscopy. Experimental results indicated that nanostructured solid solution alloy powders having homogeneous distribution of Ni and Cu were formed b...

Nickel aluminides have desirable properties for use in high-temperature applications. certain qualities, but almost a decade the 1990s, those benefits were overshadowed by challenges of processing and machining at room temperature. Manufacturing improvements, increased knowledge aluminide microstructure deformation processes, developments micro-alloying all contributed to development nickel alu...

Graphitized multiwalled CNTs (carbon nanotubes) were purchased from ECHO Chemical Co. Ltd. (Taiwan) with an external diameter of 2040 nm and a length of 0.5200 m. The raw CNT powder was etched in 15 M boiling nitric acid solution for 1h. The CNTs were then washed several times with de-ionized water until the pH value of the solution became neutral. Nickel hydroxide nanonets were grown on the...

This paper deals with production of hard metal by powder metallurgy and its effect on the environment. Hard is a composite material that consists tungsten carbide as refractory phase cobalt or nickel soft binder phase. It cannot be produced classical casting technology. Owing to excellent properties, such high hardness, wear heat resistance etc., can applied in variety industrial fields. Powder...