نتایج جستجو برای: physical vapor deposition pvd
تعداد نتایج: 776219 فیلتر نتایج به سال:
Nitride coatings with excellent hardness and wear resistance have been deposited by physical vapor deposition (PVD) in recent years. For most applications, the load bearing and adhesion of coatings are very important and can determine the life and performance of the final components. In this study, CrN/CrAlN nanostructured coatings with different thicknesses and numberes of layers were deposite...
We present the use of an oblique angle physical vapor deposition sOAPVDd technique with substrate rotation to obtain conformal thin films with enhanced step coverage on patterned surfaces. We report the results of ruthenium sRud films sputter deposited on trench structures with aspect ratio ,2 and show that OAPVD with an incidence angle less that 30° with respect to the substrate surface normal...
The object of this work was the deposition of a Ta-Hf-C thin film with a gold interlayer on stainless steel, via the physical vapor deposition (PVD) technique, in order to evaluate the properties of different systems subjected to micro-abrasive wear phenomena generated by alumina particles in Ringer's solution. The surface characterization was performed using a scanning electron microscope (SEM...
This dissertation examines growth of platinum nanoparticles from vapor deposition on SrTiO 3 using a characterization approach that combines imaging techniques and X-ray methods. The primary suite of characterization probes includes atomic force microscopy (AFM), grazing-incidence small-angle X-ray scattering (GISAXS), X-ray fluorescence (XRF), scanning electron microscopy (SEM), and X-ray abso...
The spindle is the key working part of horizontal cotton picker, and wear resistance its surface directly affects service life spindle. Improving performance fundamental for improving pickers. To enhance surface, this study used physical vapor deposition (PVD) technique to prepare TiN coating on substrate cotton-picking machine improve rather than original electroplated chromium coating. micros...
PVD (physical vapor deposition) and CVD (chemical have gained greater significance in the last two decades with mandatory shift from electrodeposition processes to clean deposition due environmental, public safety, health concerns. Due frequent use of coatings several industrial sectors, importance studying chromium coating through PVD–sputtering can be realized, investing a real alternative el...
Lutetium-177, one of the current global research hotspots for medical isotopes, can be produced by reactor irradiation lutetium-176, which and processed with assistance electron beam physical vapor deposition (EB-PVD). The metal evaporation process is an important part EB-PVD, aims to convert solid into atomic vapor. distribution each macroscopic characteristic quantity such as thermal populati...
Physical Vapor Deposition (PVD) is a widely utilized process in various industrial applications, serving as protective and hard coating. However, its presence fields like fashion has only recently emerged, electroplating processes had previously dominated this reality. The future looks toward the replacement of most hazardous toxic electrochemical processes, especially those involving Cr(VI) cy...
In this study, two polymeric materials were tested in a dry rotating “pin-on-disc” configuration against differently coated surfaces, to evaluate their tribological response under conditions, such as those of rotary lip seals, and identify the wear mechanism each coupling. A PTFE based material, reinforced with glass fibers solid lubricant, unreinforced polyketone chromium oxide coating deposit...
A production-scale ionized physical vapor deposition ~I-PVD! source has been developed to investigate the directional metalization of 200 mm diameter wafers by sputtering. The ionization of sputtered metal is accomplished by a 45 cm diameter inductively coupled plasma ~ICP!. Unlike previously reported I-PVD sources, however, the coil of the ICP is external to the plasma chamber. A plasma-immers...
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