scholarly journals Fabrication and Characterization of Single-segmented CoNiP and Multi-segment CoNiP/Au Nanowires

2014 ◽  
Vol 24 (3) ◽  
pp. 283
Author(s):  
Le Tuan Tu ◽  
Luu Van Thiem
Keyword(s):  
Pore Diameter ◽  
Element Composition ◽  
Vibrating Sample Magnetometry ◽  
Wire Axis ◽  
Structure Morphology ◽  
Single Nanowires ◽  
Fabrication And Characterization ◽  
Au Nanowires ◽  
Scanning Electron

This paper represents the fabrication of CoNiP single segment and CoNiP/Au multisegment nanowires. We have fabricated these nanowires by electrodeposition method into polycarbonate templates with a nominal pore diameter about 100 nm. The hystersis loops were measured with the applied magnetic field parallel and perpendicular to the wire axis using a vibrating sample magnetometry (VSM). The structure morphology was observed by Scanning Electron Miroscopy (SEM) and the element composition of CoNiP/Au multisegment nanowires were analyzed by EDS. The results show that these nanowires are very uniform with the diameter of 100 nm. The observed coercivity (HC) and squareness (Mr/Ms) of CoNiP single nanowires are larger than the CoNiP/Au multisegment nanowires.

Magnetic nanowires: Fabrication and characterization

2017 ◽  
Author(s):  
Kleber Roberto Pirota ◽  
Angela Knobel ◽  
Manuel Hernandez-Velez ◽  
Kornelius Nielsch ◽  
Manuel Vázquez
Keyword(s):  
Magnetic Properties ◽  
Dynamic Properties ◽  
Future Research ◽  
Magnetic Nanowires ◽  
Temperature Dependent ◽  
Alumina Membranes ◽  
Single Nanowires ◽  
Future Research Directions ◽  
Fabrication And Characterization

This article describes the fabrication and characterization of magnetic nanowires, focusing on the magnetic properties of patterned arrays of metallic magnetic nanowires electrodeposited into the pores of anodized-alumina membranes. It also discusses the complex magnetization processes, both in isolated nanowires and in collectively patterned arrays. After providing an overview of the state-of-the-art on fabrication techniques of nanowires, the article considers the microstructure of magnetic nanowires and the magnetic properties of single nanowires. It then examines the collective behavior of arrays where the interactions among the magnetic entities play an important role, along with the transport properties of magnetic nanowires, the temperature-dependent effects (such as magnetoelastic-induced anisotropy), and the dynamic properties of magnetization such as ferromagnetic resonance characteristics and spin-wave excitations in ferromagnetic nanowires. Finally, it presents an overview of future research directions.

Fabrication and Characterization of Fibrous Polycaprolactone Blended with Natural Green Tea Extracts Using Dual Solvent Systems

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ainatul Aqilah Binti Mohd Rashid ◽  
Saravana Kumar Jaganathan ◽  
Ahmad Zahran Mohd Khudzari ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Electron Microscopy ◽  
Green Tea ◽  
Water Uptake ◽  
Wound Dressing ◽  
Electrospun Fibers ◽  
Fibrous Morphology ◽  
Solvent Systems ◽  
Fabrication And Characterization ◽  
Scanning Electron

AbstractNanofibrous dressings serve as an impeccable candidate in the management of wounds. Nanofibrous composites composed of polycaprolactone (PCL) and green tea using dual solvent systems at different ratios were fabricated through electrospinning. Pure PCL electrospun fibers along with composites were characterized by using scanning electron microscopy (SEM), wettability, water uptake analysis, and Fourier transform infrared spectroscopy (FTIR). SEM indicated that fibrous morphology and the diameter of PCL/green tea were smaller for chloroform/dimethylformamide (DMF) (601 nm) and acetone/DMF (896 nm) than the pure PCL (673 nm and 1,104 nm for chloroform/DMF and acetone/DMF, respectively). Wettability of the fabricated composites was increased, and pure PCL fibers were slightly more hydrophobic (100°) than PCL/green tea (94°). Water uptake of the composites was enhanced compared with PCL significantly in acetone/DMF. The PCL/green tea nanofibrous wound dressing with enhanced physicochemical properties serves as an indispensable candidate for wound healing applications.

Nanomanipulator-assisted fabrication and characterization of carbon nanotubes inside scanning electron microscope

Micron ◽  
2005 ◽  
Vol 36 (5) ◽  
pp. 471-476 ◽  
Author(s):  
Seong Chu Lim ◽  
Keun Soo Kim ◽  
Im Bok Lee ◽  
Seung Yol Jeong ◽  
Shinje Cho ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Fabrication And Characterization ◽  
Scanning Electron

scholarly journals Fabrication and characterization of solid-state nanopores using a field emission scanning electron microscope

2006 ◽  
Vol 88 (10) ◽  
pp. 103109 ◽  
Author(s):  
Hung Chang ◽  
Samir M. Iqbal ◽  
Eric A. Stach ◽  
Alexander H. King ◽  
Nestor J. Zaluzec ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Solid State ◽  
Scanning Electron Microscope ◽  
Field Emission ◽  
Fabrication And Characterization ◽  
Scanning Electron

Fabrication and Characterization of a Feldspar-Alumina for Dental Ceramic

2010 ◽  
Vol 160-162 ◽  
pp. 424-427
Author(s):  
Guang Lei Zhang ◽  
Guo Qiang Qin ◽  
Yuan Hua Zhang ◽  
Pu Cheng ◽  
Chang Tao Shao
Keyword(s):  
Sinter Temperature ◽  
Bending Strength ◽  
Dental Ceramics ◽  
Alumina Ceramics ◽  
X Ray Diffraction ◽  
X Ray ◽  
Fabrication And Characterization ◽  
Sintering Method ◽  
Scanning Electron

Feldspar-alumina dental ceramics were produced by impressed sintering method and characterized by X-ray diffraction and scanning electron microscope techniques. The machinability of the obtained alumina ceramics was evaluated by grinding capacity in the simulative grinding experiment. The results show that an appropriate amount of feldspar additive can reduce the sinter temperature and improve density, bending strength and machinability of alumina dental ceramics. Under 10 wt% feldspar and 1450 °C sinter temperature, the relative density and bending strength of ceramic reached 93.62% and 235MPa, respectively.

Fabrication and Characterization of Bi1.6Pb0.4Sr2Ca2Cu3-xFexOy Superconductor

2017 ◽  
Vol 268 ◽  
pp. 311-314 ◽  
Author(s):  
M.A. Suazlina ◽  
H. Azhan ◽  
S. Akmal Syamsyir ◽  
K. Azman ◽  
W.A.W. Razali ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Undoped Sample ◽  
Fe Doping ◽  
X Ray Diffraction ◽  
Solid State Reaction Technique ◽  
X Ray ◽  
Oxide Powders ◽  
Fabrication And Characterization ◽  
Scanning Electron

This paper reports the properties of Bi-2223 superconductors that had been doped with Fe2O3 at Cu-site of the system. It was prepared in bulk form using high purity oxide powders via solid state reaction technique with intermediate grinding. A series of x = 0.00, 0.02, 0.04, 0.06, 0.08 and 0.10 of Fe were stoichiometrically added to the well balanced of Bi1.6Pb0.4Sr2Ca2Cu3-xFexOy in order to trace the effect of Fe doping. Hence, electrical resistivity, X-ray diffraction and Field Emission Scanning Electron Microscopy have been carried out to assess the effects of Fe doping. These measurements indicate that Fe doping decreased the critical temperature and degrade the formation of high Tc phase compared with the undoped sample. The orthorhombicity parameters were increased due to substitution of Cu 3+ ion by Fe 2+ ion.

Fabrication and Characterization of ZnO Nanowires by Thermal Oxidation Method

2012 ◽  
Vol 585 ◽  
pp. 124-128 ◽  
Author(s):  
Divya Somvanshi ◽  
Satyabrata Jit
Keyword(s):  
Electron Microscope ◽  
Thermal Oxidation ◽  
Present Method ◽  
Zno Nanowires ◽  
Metal Foil ◽  
Oxidation Method ◽  
Si Substrates ◽  
Fabrication And Characterization ◽  
Scanning Electron

Fabrication of ZnO nanowires (NWs) by thermal oxidation method has been studied in this work. The ZnO NWs have been grown by oxidation of Zn metal foil under oxygen environment for two typical oxidation durations. We have investigated the behavior of the as-grown ZnO NWs with the change in oxidation duration at particular temperature. The changes in surface morphology and chemical composition with the variation of oxidation duration have been analyzed by scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) respectively. From EDS spectra, it is confirmed that Zn metal has completely oxidized into ZnO for higher oxidation duration. In this work, the optimized duration of oxidation for growth of ZnO NWs is found to be ~60 minutes at particular temperature of 600oC. The present method provides a possible mechanism for the growth of ZnO NWs on the p-Si substrates.

Preparation and Characterization of Hydrogels Based on Chitsoan/Polyvinyl Alcohol Blends

2015 ◽  
Vol 1105 ◽  
pp. 203-207
Author(s):  
Mohammed Amine Zitouni ◽  
Sofia Borsali Kara Slimane
Keyword(s):  
Weight Ratio ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Scanning Calorimetry ◽  
Intermolecular Hydrogen Bonds ◽  
Sem Images ◽  
Structure Morphology ◽  
Ft Ir ◽  
Scanning Electron

In this study, a series of poly (vinyl alcohol) (PVA)/chitosan (CS) hydrogels with different weight ratio of PVA to CS were prepared by freezing-thawing (F-T) method. The structure, morphology, and crystallinity of hydrogels were investigated by Fourier Transform Infrared (FT-IR), scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). FTIR demonstrated the presence of strong intermolecular hydrogen bonds between CS and PVA molecules. SEM images showed that the higher the chitosan, the greater the porous size of the hydrogel and DSC confirmed that crystallinity is higher when PVA is more in hydrogel. The mechanical properties of these hydrogels were studied by rheometry. The study of swelling ability demonstrated that the hydrogel developed with PVA and Cs was more swellable than that with PVA only because of its cross-linking interaction with PVA.

Fabrication and Characterization of Porous F-75 for Potential Application in Tissue Engineering

2013 ◽  
Vol 795 ◽  
pp. 78-81
Author(s):  
Shamsul Baharin Jamaludin ◽  
Tan Wei Leng ◽  
Nur Hidayah Ahmad Zaidi ◽  
Zuraidawani Che Daud ◽  
Mohd Noor Mazlee
Keyword(s):  
Compaction Pressure ◽  
Microstructural Analysis ◽  
Argon Atmosphere ◽  
Pore Shape ◽  
Powder Metallurgy Technique ◽  
Fabrication And Characterization ◽  
Compacting Pressure ◽  
Sem Microstructure ◽  
Scanning Electron

Porous F-75 (Co-Cr-Mo) was produced by powder metallurgy technique. F-75 powder was mixed with space holder and compacted using different pressures (300 MPa, 350 MPa, 400 MPa, 450 MPa). The green samples were sintered at 1150 °C in a tube furnace under argon atmosphere. Sintered samples were examined in terms of bulk density, porosity, hardness and pore size. Microstructural analysis was carried out using a scanning electron microscope (SEM). Microstructure analysis showed that pore sizes and pore shape were influenced by different compaction pressure. The hardness of the samples increased as compacting pressure increased. Density and porosity remained constant at certain level.

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