نتایج جستجو برای: Nano layer

تعداد نتایج: 330388  

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه مواد و انرژی - پژوهشکده سرامیک 1392

thermal barrier coatings (tbcs) are used to provide thermal insulation to the hot section components of gas turbines in order to enhance the operating temperature and turbine efficiency. hot corrosion and thermal shocks are the main destructive factors in tbcs which comes as a result of oxygen and molten salt diffusion into the coating. in this thesis atmospheric plasma spraying was used to dep...

2016
Sunghee Hwangbo Jiwoong Heo Xiangde Lin Moonhyun Choi Jinkee Hong

There have been many studies on superwetting surfaces owing to the variety of their potential applications. There are some drawbacks to developing these films for biomedical applications, such as the fragility of the microscopic roughness feature that is vital to ensure superwettability. But, there are still only a few studies that have shown an enhanced durability of nanoscale superwetting fil...

Journal: :journal of optoelectronical nano structures 0
mohammad ghalambaz department of mechanical engineering, dezful branch, islamic azad university, dezful, iran.c research center. ali j chamkha mechanical engineering department, prince mohammad bin fahd university (pmu) p.o. box 1664 al-khobar 31952, kingdom of saudi arabia mehdi ghalambaz department of mechanical engineering, dezful branch, islamic azad university, dezful, iran.c research center. mohammad edalatifar department of electrical engineering, dezful branch, islamic azad university, dezful, iran.

the natural frequency and pull-in instability of clamped-clamped nano-actuators in the presence of a dielectric layer are analyzed. the influence of the presence of casimir force, electrostatic force, fringing field effect, axial force, stretching effects and the size effect are taken into account. the governing equation of the dynamic response of the actuator is transformed in a non-dimensiona...

Journal: :IEICE Transactions 2013
Woo Young Choi Min Su Han Boram Han Dongsun Seo Il Hwan Cho

The effect of a sacrificial layer residue on a cantilever beam in the nano-electro-mechanical nonvolatile memory is investigated for the optimization of reliability characteristics. Different from previous research, pull in voltage model of nano-electro-mechanical nonvolatile memory used triangular residue layer which is considered by real wet etching process. Modified pull in voltage model was...

Journal: :international journal of nanoscience and nanotechnology 2011
s. sabbaghi r. bazargan lari m. zeraatkar

nano films consisting of an alternating sequence of positively and negatively charged polyelectrolytes have been prepared by means of the electrostatic layer-by-layer (lbl) sequential assembly technique on treated and untreated mild steel wires. inhibitor was encapsulated between cationic and anionic polyelectrolyte nano films. this paper mainly focuses on the effect of these nano-films of poly...

2011

ISSN 2250 – 1088 | © 2011 Bonfring Abstract--This paper presents a high-Q MWCNT (Multi Wall Carbon Nano-Tube) network based pulse-shaped on-chip embedded nano-inductor for power electronic circuits. This high-Q inductor is fabricated using a composite of MWCNT (multi Wall Carbon Nano Tube) network and Fe in semiconductor processing environment. A layer of nano composite film (Cu/CoFe2o4) is pat...

Majid Karimian, Seyyed Ali Eftekhari, Seyyed Masoud Badakhshian

Since the cutting tools used in machining process of super alloys are subjected to high cutting forces, accordingly tools life is reduced, therefore improvement in alloys machining and reducing cutting forces to achieve longer tools life is an essential necessity. In this research, the effect of changes in feed rate on cutting forces in machining process of nickel based super alloys is investig...

2011
Mingquan Yuan Xiaoxiong Zhou Xiaomei Yu

Infrared detector has a wide range of applications. To fabricate an IR detector with good sensitivity, an efficient IR absorber is needed. In this paper, we theoretically and experimentally investigated the absorption characteristics of Ti, multi-layer structured Ti-SiO2 and TiNx-SiNx nano films. The multi-layer structured TiNx-SiNx films with different nitrogen contents and Ti nano films with ...

2012
Alexander S. Shalin Sergey A. Nikitov

In this work, we investigate the effect of broadband antireflection of a medium by a layer of embedded nano-cavities arranged near the surface. It is shown that this structure is versatile and allows near 100% transmittance in a wide spectral range practically for any dielectric material. The approximate model of nano-structured layer is suggested that allows to determine the parameters of the ...

The natural frequency and pull-in instability of clamped-clamped nano-actuators in the presence of a dielectric layer are analyzed. The influence of the presence of Casimir force, electrostatic force, fringing field effect, axial force, stretching effects and the size effect are taken into account. The governing equation of the dynamic response of the actuator is transformed in a non-dimensiona...

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