Novel multilayer structured TiBN coatings were deposited on Si (100) substrate using TiBN complex cathode plasma immersion ion implantation and deposition technique (PIIID). The coatings were characterized by X-ray diffraction (XRD), high-resolution transmission electron microcopy (HRTEM), energy-dispersive spectrometer (EDS) and ball-on-disk test. XRD results reveal that both samples of TiBN c...

In recent years, near-nano (submicron) and nanostructured materials have attracted increasingly more attention from the materials community. Nanocrystalline materials are characterized by a microstructural length or grain size of up to about 100 nm. Materials having grain size of 0.1 to 0.3 mm are classified as submicron materials. Nanocrystalline materials exhibit various shapes or forms, and ...

Brush-electroplated nickel coating has been widely applied to repair and remanufacture ferrous metal component. Generally, the nickel coating has thickness from 0.05 mm to 0.2 mm, and it is also ferromagnetic like iorn metals. Therefore, the traditional supersonic thickness tester and eddy current thickness tester are not competent to measure the nickel coating thickness on iron or steel metal ...

In this paper the influence of material composition on the structural, surface and optical properties of HfO2-TiO2 mixed oxide coatings was investigated and discussed. Five sets of thin films were deposited using reactive magnetron sputtering: HfO2, TiO2 and three sets of mixed HfO2-TiO2 coatings with various titanium content. The change in the material composition had a significant influence o...

Biomimetic coatings constituted of gelatin and nanocrystalline apatite were deposited on titanium substrates from a slightly supersaturated calcium phosphate (CaP) solution enriched with different amounts of gelatin. Although the biopolymer inhibits the crystallization of the inorganic phase, as shown by the reduction of the mean dimensions of the spherical aggregates and of the degree of cryst...

A sonochemistry-based synthesis method was used to produce nanocrystalline nickel oxide powder with ≈ 20 nm average crystallite diameter from Ni(OH)(2) precursor. Ultrasound waves were applied to the primary solution to intensify the Ni(OH)(2) precipitation. Dried precipitates were calcined at 320°C to form nanocrystalline NiO particles. The morphology of the produced powder was characterized b...

–The dielectric property of Nanocrystalline nickel is studied. Ni nanocrystal have been synthesized by the thermal decomposition of the Ni (acac)2 [Nickel (acetylacetonate)2], oleylamine complex as a precursor . Trioctylphosphine [CH3(CH2)7]3P was used as both solvent and surfactant for control the size of the nanoparticles. Characterization of the nanoparticles has been done by the XRD and TEM...