نتایج جستجو برای: Oxide film

تعداد نتایج: 260004  

Journal: :نشریه دانشکده فنی 0
علی رضا میرک مهدی دیواندری سید محمد علی بوترابی

morphology of surface oxide film formed during pouring of molten magnesium alloy has been investigated. due to surface turbulence during casting, the oxide film necessarily makes folded cause in a dry surface to dry surface mode creating a double oxide film with the volume of air that can be encapsulated between folds of the film and this led to make gas bubbles or shrinkage cavities form. thes...

Journal: :international journal of nanoscience and nanotechnology 2008
a. bahari m. delshadmanesh

the surface and interfacial analysis of silicon oxide film on silicon substrate is particularly crucial in the nano-electronic devices. for this purpose, series of experiments have been demonstrated to grow oxide film on si (111) substrate. then these films have been used to study the structure of the film by using x-ray photo emission spectroscopy (xps) technique. the obtained results indicate...

Journal: :مهندسی متالورژی و مواد 0
بهزاد نایبی مهدی دیواندری سید امیر آذرمهر

aluminum is very sensitive to oxidation reactions. if a fresh surface of melt is exposed to air, it oxidizes quickly and an oxide layer covers the melt surface. new oxide films formed in a very short time during casting are thin and folded. the metal surface can be folded and create a double-oxide film as a result of the melt turbulence. the entrance of this double-oxide film into the melt is o...

Journal: :iranian journal of hydrogen & fuel cell 2015
mehdi kheirmand abolfath eshghi

reduced graphene oxide film was synthesized on a glassy carbon electrode by electro reduction of graphene oxide powders in aqueous solution. then platinum nano particles were deposited on reduced graphene oxide film that was deposited on the glassy carbon electrode via electro reduction of platinum salt. the physical morphology of the platinum on reduced graphene oxide film was evaluated by sca...

Reduced graphene oxide film was synthesized on a glassy carbon electrode by electro reduction of graphene oxide powders in aqueous solution. Then platinum nano particles were deposited on reduced graphene oxide film that was deposited on the glassy carbon electrode via electro reduction of platinum salt. The Physical morphology of the platinum on reduced graphene oxide film was evaluated by sca...

A. Bahari M. Delshadmanesh

The surface and interfacial analysis of silicon oxide film on silicon substrate is particularly crucial in the nano-electronic devices. For this purpose, series of experiments have been demonstrated to grow oxide film on Si (111) substrate. Then these films have been used to study the structure of the film by using X-ray photo emission spectroscopy (XPS) technique. The obtained results indicate...

Journal: :Physical review letters 2014
Liang Li Langli Luo Jim Ciston Wissam A Saidi Eric A Stach Judith C Yang Guangwen Zhou

We report in situ atomic-resolution transmission electron microscopy observations of the oxidation of stepped Cu surfaces. We find that the presence of surface steps both inhibits oxide film growth and leads to the oxide decomposition, thereby resulting in oscillatory oxide film growth. Using atomistic simulations, we show that the oscillatory oxide film growth is induced by oxygen adsorption o...

ژورنال: پوست و زیبایی 2021
Hassanzadeh Nemati, Nahid , Khateri Roodbordeh, Malahat ,

Background and Aim: Lesions of the skin can impair its vital function to protect humans against external pathogens. Therefore, producing a suitable wound dressing to repair injuries is always one of the challenges of researchers. The present study aims to Synthesize a hydrogel film for wound dressing applications. Methods: In this research, a hydrogel film of polyvinyl alcohol / hyaluronic a...

Journal: :international journal of nano dimension 0
n. mastali department of chemistry, azad university, tehran north branch, tehran, iran h. bakhtiari department of chemistry, azad university, tehran north branch, tehran, iran

in this study, tio2 and zno nanofilms were prepared by sol-gel spin-coating method. nanofilms were characterized by x-ray diffraction (xrd), energy dispersive analysis of      x-ray (edx), scanning electron microscopy (sem) and field emission scanning electron microscopy (fe-esm). structural and morphological properties of nanofilms were investigated. the average crystalline size of tio2 and zn...

2014
Jaeman Jang Dae Geun Kim Dong Myong Kim Sung-Jin Choi Jun-Hyung Lim Je-Hun Lee Yong-Sung Kim Byung Du Ahn Dae Hwan Kim

Articles you may be interested in A thermalization energy analysis of the threshold voltage shift in amorphous indium gallium zinc oxide thin film transistors under simultaneous negative gate bias and illumination Instability of amorphous hafnium-indium-zinc-oxide thin film transistors under negative-bias-illumination stress Appl. Investigation of zinc interstitial ions as the origin of anomalo...

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