نتایج جستجو برای: coating technique

تعداد نتایج: 644926  

Journal: :مهندسی متالورژی و مواد 0
لاله رضازاده مرتضی زندرحیمی

in this study, nickel-phosphorus coating was prepared by electrodeposition technique on the 304 stainless steel substrate. the effects of current density, phosphorous acid concentration, time and ph on the phosphorous content was investigated using taguchi method. a uniform amorphous-nanocrystalline structure (ni-12%p) was obtained. sem, eds, tem and xrd were used in order to study the surface ...

Journal: :international journal of nanoscience and nanotechnology 2014
m. yeganeh m. saremi

the idea of smart corrosion inhibition is basis on either inhibitor consumption where it is needed or reducing harmful matrix interaction with it. in addition, applying corrosion inhibitor in a coating causes many problems such as loss of inhibition capability, coating degradation, or both. a useful technique to overcome this problem is applying of inert host systems of nanometer dimensions as ...

Journal: :Acta biomaterialia 2010
Guocheng Wang Fanhao Meng Chuanxian Ding Paul K Chu Xuanyong Liu

A monoclinic zirconia coating with a nanostructural surface was prepared on the Ti-6Al-4V substrate by an atmospheric plasma-spraying technique, and its microstructure and composition, as well as mechanical and biological properties, were investigated to explore potential application as a bioactive coating on bone implants. X-ray diffraction, transmission electron microscopy, scanning electron ...

F Shamsa H Jamalifar MR Fazeli V Hosseini

Long-term use of indwelling medical catheters has often been hindered by catheter-associated nosocomial infections. In this study the effectiveness of silver coating of polystyrene and polyethylene polymers was investigated. Polymer pieces of 2 cm2 each were coated with a thin layer of silver using electroless plating technique. Silver-coated polymers were challenged with cultures of four diffe...

Adeleh Yousefi, Fariba Ezoji, Ghazaleh Ahmadi Zenouz, Soraya Khafri,

Background and Aim: This study aimed to assess the effect of finishing and polishing time, technique and surface coating on microleakage of encapsulated restorative resin modified glass ionomer (RMGI). Materials and Methods: In this in vitro study, 40 freshly extracted human premolars were selected. Two standard class V cavities were prepared on the buccal and lingual surfaces of each tooth. T...

2011
Roman E. Popil

Application of a delaminated kaolin clay base coat onto linerboard provides a barrier coating for a subsequently applied polymer top coat with potential advantages of increased paper stiffness, improved water resistance at reduced polymer overcoat. Motivated by coating material cost reduction, feasibility of the technique is demonstrated by applying a delaminated clay coating online followed by...

A. Afshar M. A. Faghihi-Sani N. Barati, P. Doodman

Nanostructured alumina thin films were coated on stainless steel by Sol-Gel dip coating method. In order to prevent crack formation, Al2O3 films were kept in a solvent bath immediately after coating to reduce the rate of drying. Effects of calcination temperature and withdrawal speed on structural properties were analyzed using XRD and SEM. Topography and thickness of coat...

اشرفی زاده, فخرالدین, عطاپور, مسعود, پورمحمدی, سعیده,

In this study, a Cr-modified NiAl coating was fabricated by weld cladding technique using Gas- Tungsten Arc Welding (GTAW) process on 310 steel. Chemical composition and microstructure of the coating was studied by X-Ray Diffraction (XRD), optical microscopy and scanning electron microscopy equipped with an Energy Dispersive Spectroscopy (EDS). The wear behavior of the coated steel was examined...

Journal: :Anesthesia and analgesia 1999
Y Niimi F Ichinose Y Ishiguro K Terui S Uezono S Morita S Yamane

UNLABELLED Platelet adhesion on the cardiopulmonary bypass oxygenator membrane is associated with impaired hemostasis. We investigated the effects of heparin coating of the oxygenator membrane on protein adsorption and platelet adhesion on the surface. Noncoated and heparin-coated polypropylene membranes were incubated in whole blood with small- (1 U/mL) or large-dose (5 U/mL) heparin as an ant...

Journal: :Environmental Health Perspectives 2000
C G Reuther

Hochhaus and James Talton, an associate professor and postdoctoral associate, respectively , in the university's Department of Pharmaceutics; and James Fitz-Gerald of the Naval Research Laboratory in Washington, DC, have begun using the new technique-pulse laser deposition-to coat glucocorticoids with thin layers of a biodegradable polymer. Glucocorticoids are the strongest and longest-lasting ...

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