نتایج جستجو برای: cathodic arc pvd

تعداد نتایج: 41027  

ژورنال: :مجله علوم پزشکی رازی 0
سیدمهدی مدرس زاده mehdi modarreszadeh iran university of medical sciencesدانشگاه علوم پزشکی ایران آرزو آسترکی arezoo astaraki iran university of medical sciencesدانشگاه علوم پزشکی ایران

زمینه و هدف: علی رغم مطالعات متعدد انجام شده در مورد عوامل ایجاد کننده و درمان جداشدگی رگماتوژن شبکیه، در این زمینه اختلاف نظر وجود دارد. هدف این مطالعه بررسی متون و مقالات اخیر جهت بررسی عوامل مستعد کننده و روش های درمان این اختلال است. روش کار: این مطالعه با مرور مقالات مرتبط در ده سال اخیر (2004-2014) در pubmed انجام شده است. یافته ها: دو عامل اصلی نگهدارنده اتصال شبکیه به لایه های زیرین، پم...

2005
L. X. Liu E. Liu

Nitrogenated diamond-like carbon (N:DLC) thin films fabricated with filtered cathodic vacuum arc (FCVA) can have a high sp content. Their superior electrochemical properties such as wide potential window and low background current make them a more promising electrode material than conventional carbon-based electrodes. The N:DLC films give pronounced signals for tracing analysis of Pb, Cu and Hg...

2011
Luis Carlos Hernández Luis Ponce Abel Fundora Enrique López Eduardo Pérez

TiN films were prepared by the Cathodic arc evaporation deposition method under different negative substrate bias. AFM image analyses show that the growth mode of biased coatings changes from 3D island to lateral when the negative bias potential is increased. Nanohardness of the thin films was measured by nanoindentation, and residual stress was determined using Grazing incidence X ray diffract...

2010
N. W. Khun E. Liu C. C. Ko G. C. Yang W. G. Ma A. P. Liu H. Wang

Nitrogen doped diamond-like carbon (N-DLC) thin films were prepared on n-Si substrates using a filtered cathodic vacuum arc deposition method. Square wave anodic stripping voltammetry (SWASV) was used to trace Pb and Cu in a neutral KCl solution with pH 7. Stripping voltammograms of Pb and Cu were analyzed in terms of metal concentration, deposition time and deposition potential. The SWASV resu...

2017
Bin Han Zesong Wang Neena Devi K. K. Kondamareddy Zhenguo Wang Na Li Wenbin Zuo Dejun Fu Chuansheng Liu

(Ti, Al)N/MoN and CrN/MoN multilayered films were synthesized on Si (100) surface by multi-cathodic arc ion plating system with various bilayer periods. The elemental composition and depth profiling of the films were investigated by Rutherford backscattering spectroscopy (RBS) using 2.42 and 1.52 MeV Li2+ ion beams and different incident angles (0°, 15°, 37°, and 53°). The microstructures of (T...

2009
N. W. Khun E. Liu X. T. Zeng

Nitrogen doped tetrahedral amorphous carbon (ta-C:N) thin films were grown on p-Si(1 1 1) substrates using filtered cathodic vacuum arc (FCVA) deposition by varying nitrogen flow rate. The effect of nitrogen flow rate on the corrosion performance of the films was investigated through potentiodynamic polarization and immersion tests in 0.6 M NaCl solutions. The polarization results showed that t...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
farzaneh akvan jaber neshati jamshid mofidi

steel pipelines are susceptible to corrosion by the action of corrosive substance in the environment and one of the most common failure modes in buried pipeline coatingis cathodic disbondment. consequently, electrochemical impedance spectroscopy (eis) was used to assess the effect of three important parameters, the thickness of coating, the artificial defect and electrolyte type, on cathodic di...

Journal: :Metals 2023

This review considered various methods for depositing special modifying coatings on medical implants made of titanium alloys including techniques such as electrochemical deposition, sol–gel process, atmospheric plasma and PVD (magnetron sputtering vacuum arc deposition). The rationale is provided the use to improve performance efficiency implants. concept a functional multilayer coating designe...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید