نتایج جستجو برای: magnetic coating

تعداد نتایج: 374424  

2014
Nareerat Plylahan Sébastien Maria Trang NT Phan Manon Letiche Hervé Martinez Cécile Courrèges Philippe Knauth Thierry Djenizian

This work reports the conformal coating of poly(poly(ethylene glycol) methyl ether methacrylate) (P(MePEGMA)) polymer electrolyte on highly organized titania nanotubes (TiO2nts) fabricated by electrochemical anodization of Ti foil. The conformal coating was achieved by electropolymerization using cyclic voltammetry technique. The characterization of the polymer electrolyte by proton nuclear mag...

2014
Neeraj Dwivedi Sushil Kumar Hitendra K. Malik C. M. S. Rauthan O. S. Panwar

The role of sandwich Cu layer in and effect of self-bias on structural and nanomechanical properties of Cu/DLC bilayer films have been explored. Cu/DLC bilayer filmswere grown, under varied self-bias from−125 to−225V, using hybrid system involving radiofrequency(RF-) plasma-enhanced chemical vapor deposition and RF-sputtering units. Surface topography and mean roughness was studied by atomic fo...

2016
Teng Tan M. A. Wolak X. X. Xi T. Tajima L. Civale

Bulk niobium Superconducting Radio-Frequency cavities are a leading accelerator technology. Their performance is limited by the cavity loss and maximum acceleration gradient, which are negatively affected by vortex penetration into the superconductor when the peak magnetic field at the cavity wall surface exceeds the vortex penetration field (Hvp). It has been proposed that coating the inner wa...

2014
Manouchehr Nikazar Mehriana Alizadeh Reza Lalavi Mohammad Hossein Rostami

The photocatalysis of phenol was studied using Fe3O4/ZnO core/shell magnetic nanoparticles (MNPs). The photocatalysts were synthesized by coating of ZnO onto the magnetite by precipitation method and characterized by XRD, SEM and FTIR measurements. Using the Taguchi method, this study analyzes the effect of parameters such as calcinations time, calcinations temperature and molar ratio of Fe3O4:...

Journal: :Reactive & functional polymers 2016
Yingying Zheng Jianjun Miao Fuming Zhang Chao Cai Amanda Koh Trevor J Simmons Shaker A Mousa Robert J Linhardt

A functional anticoagulant and anti-bacterial coating for polyethylene (PE) films is described. The stepwise preparation of this nanocomposite surface coating involves O2 plasma etching of PE film, carbodiimide coupling of cysteamine to the etched PE film, binding of Ag to sulfhydryl groups of cysteamine, and assembly of heparin capped AgNPs on the PE film. The nanocomposite film and its compon...

Journal: :Applied optics 2009
Shai N Shafrir Henry J Romanofsky Michael Skarlinski Mimi Wang Chunlin Miao Sivan Salzman Taylor Chartier Joni Mici John C Lambropoulos Rui Shen Hong Yang Stephen D Jacobs

We report on magnetorheological finishing (MRF) spotting experiments performed on glasses and ceramics using a zirconia-coated carbonyl-iron (CI)-particle-based magnetorheological (MR) fluid. The zirconia-coated magnetic CI particles were prepared via sol-gel synthesis in kilogram quantities. The coating layer was approximately 50-100 nm thick, faceted in surface structure, and well adhered. Co...

2014
A. P. TIWARI

Iron oxide nanoparticles were synthesized and coated with silica by conventional coprecipitation method. Silica coated iron oxide nanoparticles were surface functionalized with chitosan. Silica coating and chitosan functionalization were confirmed by FTIR and TG-DTA analysis. XRD pattern revealed that the pure phase of Fe3O4 was retained even after coating. Particles of average size 12 nm were ...

2012
Tibor-Adrian Óvári Nicoleta Lupu Horia Chiriac

Magnetically soft amorphous glass-coated microwires are suitable for numerous sensor applications. Their typical dimensions – metallic nucleus diameter of 1 to 50 m and glass coating thickness of 1 to 30 m – make them promising candidates for high frequency applications, especially given their sensitive giant magneto-impedance (GMI) response in the MHz and GHz ranges (Torrejón et al, 2009). T...

2017
Jiri Kudr Yazan Haddad Lukas Richtera Zbynek Heger Mirko Cernak Vojtech Adam Ondrej Zitka

The increasing number of scientific publications focusing on magnetic materials indicates growing interest in the broader scientific community. Substantial progress was made in the synthesis of magnetic materials of desired size, morphology, chemical composition, and surface chemistry. Physical and chemical stability of magnetic materials is acquired by the coating. Moreover, surface layers of ...

Background: Multifunctional core-shell magnetic nanocomposite particles with tunable characteristics have been paid much attention for biomedical applications in recent years. A rational design and suitable preparation method must be employed to be able to exploit attractive properties of magnetic nanocomposite particles. Objectives: Herein, we report on a simple approach for the synthesis of m...

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