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In this study, boronizing of 99.9% pure nickel was performed by means of a powder-pack method using Commercial LSB-II powders (that contained SiC) at 850, 900 and 950°C for 2, 4, 6 and 8h, respectively. The coated samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS) and hardness tests. The presence of boride (Ni...
In an effort to increase the crystalline fraction of silicon films directly deposited on a glass substrate by hot-wire chemical vapor deposition, the effect of HCl addition was studied. The silicon film was deposited on a glass substrate at 320°C under a reactor pressure of 1333Pa at the wire temperature of 1600°C with 10%SiH 4 –90%He at a fixed flow rate 100 standard cubic centimeter per...
Transparent conducting aluminum-doped zinc oxide (ZnO:Al) films have been prepared on polycarbonate (PC) substrates by pulsed laser deposition technique at low substrate temperature (room-100°C); Nd-YAG laser with wavelength of 1064nm was used as laser source. The experiments were performed at various oxygen pressures (3pa, 5pa, and 7Pa). In order to study the influence of the process parameters on...
Siliconcarbonitride (Si–C–N) coatings were deposited on silicon (100) by magnetron sputtering using radio frequency alternating current and direct current. The mechanical performance of the coatings in the two modes was compared through static indentation and scratch test in both microlevel and nanolevel. A structure–property correlation was attempted to establish mechanical behavior, microstructure...
We have reported a study of a number of metal/p-type InP (Cu, Au, Al, Sn, Pb, Ti, Zn) Schottky barrier diodes (SBDs). Each one diode has been identically prepared on p-InP under vacuum conditions with metal deposition. In Schottky diodes, the current transport occurs by thermionic emission over the Schottky barrier. The current–voltage characteristics of Schottky contacts are described by two fitting...
The present paper reports the effect of substrate temperature on the structural, optical and electrical properties of vacuum deposited zinc telluride (ZnTe) thin films. X-ray diffraction (XRD) analysis of the films, deposited on glass substrates, revealed that they have cubic structure with strong (111) texture. Room temperature deposits are tellurium rich and an increase in the substrate temperature...
In this paper the effects of a strong magnetic field on plasma immersion ion implantation (PHI) of dielectric substrates were investigated. A plasma fluid model and finite difference schemes were used to simulate a one-dimensional system of plasma immersion ion implantation. The effect of secondary electron emission from the electrode on PHI was also taken into consideration. It was found that the...
Trilayers of Al/Fe/Al and Al/Fe multilayers produced by magnetron sputtering both with and without ion assistance have been depth profiled using Auger electron spectroscopy and medium energy ion scattering. Important differences are observed in the layer structure, with ion assisted deposition giving the narrowest Al/Fe interfaces and so maintaining the most clearly defined layer structure. Both types...
The characteristics of field electron emission (FE) from aligned carbon nanotubes (ACNTs) in a form of film, which were catalytically grown by plasma-enhanced hot filament chemical vapor deposition, were measured for many cycles. The results indicate that the FE characteristic for every measurement cycle is different and it follows the Fowler–Nordheim model in the low field region, but it deviates...
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