نتایج جستجو برای: passive film

تعداد نتایج: 160425  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1382

‏‎translation as a comunicative process is always said to be associated with various aspects of meaning loss or gain. subtitling as a mode of translating, due to special discoursal and textual conditions imposed upon it, is believed to be an obvious case of this loss or gain. presenting the spoken sound track of a film in writing and synchronizing the perception of this text by the viewers with...

Journal: :Journal of materials research and technology 2022

Film protection has become a crucial means to improve the corrosion and wear performance of key components in aggressive environment. In this study, feasibility using MoS 2 -based modified films artificial seawater (3.5% NaCl solution) was evaluated by co-deposition Ti produce Ti–MoS composite Ti/MoS multilayer films. The microstructure, wettability, mechanical, tribological behavior Ti-modifie...

2012
Nathan S. Jacobson Dwight L. Myers

The high temperature oxidation of silicon carbide occurs in two very different modes. Passive oxidation forms a protective oxide film which limits further attack of the SiC: SiC(s) + 3/2 0 2(g) = Si02(s) + CO(g) Active oxidation forms a volatile oxide and may lead to extensive attack of the SiC: SiC(s) + 0 2(g) = SiO(g) + CO(g) Generally passive oxidation occurs at higher oxidant pressures and ...

2016
Jian Cheng Jiang Xu Lin Lin Liu Shuyun Jiang

In order to improve the corrosion and wear resistance of biomedical Ti-6Al-4V implants, a Ta₂N nanoceramic coating was synthesized on a Ti-6Al-4V substrate by the double glow discharge plasma process. The Ta₂N coating, composed of fine nanocrystals, with an average grain size of 12.8 nm, improved the surface hardness of Ti-6Al-4V and showed good contact damage tolerance and good adhesion streng...

2017
Zhouhua Jiang Hao Feng Huabing Li Hongchun Zhu Shucai Zhang Binbin Zhang Yu Han Tao Zhang Dake Xu

The relationship between microstructure and corrosion behavior of martensitic high nitrogen stainless steel 30Cr15Mo1N at different austenitizing temperatures was investigated by microscopy observation, electrochemical measurement, X-ray photoelectron spectroscopy analysis and immersion testing. The results indicated that finer Cr-rich M₂N dispersed more homogeneously than coarse M23C₆, and the...

2007
William E. Mustain Hyea Kim Shruti Prakash Johanna Stark Tyler Osborn Paul A. Kohl

Thin-film electrodes for a low-power direct methanol fuel cell DMFC were prepared by incorporating carbon-supported Pt nanoparticles Pt/C into a silicon dioxide glass matrix. The SiO2 matrix was prepared via a sol-gel technique where tetraethyl orthosilicate TEOS was hydrolyzed by H2O in the presence of methanol. The Pt/C was stirred into the sol and the resulting mixture was applied to a glass...

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