نتایج جستجو برای: feconi nanowires

تعداد نتایج: 14689  

Nano structures such as nanowires, nanobeams and nanoplates have been investigated widely for their innovative properties. In this paper the buckling of nanowires surrounded in a Winkler - Pasternak elastic medium has been examined based on the nonlocal Euler-Bernoully model with considering the surface effects. In the following a parametric study that explores the influence of numerous physica...

Journal: : 2021

Triple FeCoNi nanoparticles distributed and stabilized in the carbon matrix of FeCoNi/C metal-carbon nanocomposites were synthesized. The synthesis was carried out by controlled IR pyrolysis precursors "polymer-metal nitrates" type, obtained joint dissolution components with subsequent removal solvent. effect temperature on structure, composition, electromagnetic properties has been studied. It...

A. Ramazani, M. Almasi kashi Z. Haji jamali,

NiCu alloy nanowires arrays were embedded into the anodic aluminum oxide (AAO) template by ac-pulse electrodeposition. Different off-time were used in electrolyte with constant concentration of Ni and Cu and acidity of 3. The effect of deposition parameters on alloy contents was investigated by studying the microstructure and magnetic properties of as-deposited NiCu alloy nanowires. Atomic forc...

Journal: :journal of computational applied mechanics 0
naser kordani university of mazandaran [email protected] abdolhossein fereidoon university of semnan mehdi divsalar semnan university ali farajpour department of mechanical engineering, college of engineering, university of tehran, tehran, iran

in this paper, a numerical solution procedure is presented for the forced vibration of a piezoelectric nanowire under thermo-electro-mechanical loads based on the nonlocal elasticity theory within the framework of timoshenko beam theory. using hamilton’s principle, the nonlocal governing differential equations are derived. the governing equations and the related boundary conditions are discreti...

Journal: :journal of nanostructures 2013
a. kabiri g. nabiyouni p. boroujerdian j. ghasemi a. fattahi

the aim of this research is preparation of sno2 nanowires by means of thermal chemical reaction vapor transport deposition (tcrvtd) method from sno powders. the morphology, chemical composition and microstructure properties of the nanowires are characterized using field emission scanning electron microscope (fe-sem), eds, and xrd. the xrd diffraction patterns reveal that the sno2 nanowires have...

روح ا... گلی پور, , عبدالعلی رمضانی, , علی خیاطیان, , محمد الماسی کاشی, ,

  Co and Ni magnetic nanowires with different diameter and deposition time were fabricated into the alumina template using ac electrodeposition. For Ni nanowires with 30 nm diameter the coercivity initially increased then dropped with deposition time, while it only increased with deposition time for all the other diameters. In general, the results showed that the coercivity reduced with diamete...

The metal-assisted chemical etching (MACE) was used to synthesis silicon nanowires. The effect of etchant concentration, etching and chemical plating time and doping density on silicon nanowires length were investigated. It is held that the increasing of HF and H2O2 concentrations lead to etching rate increment and formation of wire-like structure. The results show that, the appropriate ratio o...

A. Ramazani E. J. Khamse M. Almasi Kashi, N. Akhshi Z. Fallah

CoNi nanowires were deposited by pulsed electrodeposition technique into porous alumina templates. The effect of off time between pulses (toff) and reductive/oxidative time (treduc/oxid) on the microstructure and magnetic properties of the CoNi nanowires were investigated. Maximum coercivity and squareness were obtained for samples fabricated at treduc/oxid= 0.5 ms and toff =400 ms. The coerciv...

. Thanasanvorakun Majid Monajjemi Nikom Sangkorntong Pongsri Mangkomtong

Sn02 nanowires with diameters of 30 — 200 nm have been synthesized by using carbothermalprocess via a thick film of tin dioxide and carbon powder precursor. The nanowires werecharacterized by X-ray power diffraction (XRD), scanning electron microscopy (SEM),transmission electron microscopy (TEM) and Selected Area Electron Diffraction (SAED).The gas sensing characteristic of nanowires toward eth...

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