نتایج جستجو برای: coating system

تعداد نتایج: 2263728  

2004
L. El-Guebaly

A number of studies have proposed several electrically insulating coatings for the vanadium structure to mitigate the magneto-hydrodynamic (MHD) pumping power losses for the self-cooled lithium blanket system. The most practical scenario for power plant designs is to add the coating material to the liquid lithium breeder to help the in-situ self-healing process of the microcracking developed du...

2012
Xiaodong Ma Tim Wu Michael P Robich

Over the past decade, drug-eluting stents (DES) have greatly transformed the field of interventional cardiology. Generally, three components are included in a DES system: a metal stent platform, a drug carrier or so called ‘stent coating’ and a drug. As such, stent coating plays an important role in the performance of DES. This article will review the evolution of stent coatings and their role ...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
مریم معزی زاده maryam moezzyzadeh dental school, shahid beheshti university of medical sciences, tehramn- iran.دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی. هانیه نوجه دهیان hanieh nojehdehyan dental school, shahid beheshti university of medical sciences, tehramn- iran.دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی. هاله ولی زاده حقی haleh valizadeh haghi dental school, shahid beheshti university of medical sciences, tehramn- iran.دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی.

objective: a clinical challenge of using zirconia frameworks is to achieve adequate bond with different substrates. this study aimed to evaluate the effect of bioglass and silica coating of zirconia substrates on microshear bond strength of resin cement to tetragonal zirconia. methods: this laboratory experimental study was conducted on zirconia discs. a total of 120 ytzp zirconia (zirkonzahn) ...

2012
KYUNG-HYUN CHOI GANESHTHANGARAJ PONNIAH NAVANEETHAN DURAISAMY YANG-HOI DOH

Poly (3,4-ethylenedioxythiophene)-poly (styrenesulfonate) (PEDOT:PSS) was coated on flexible polyethylene terephthalate (PET) substrate using slot die on a roll-to-roll (R2R) system under different web tensions. The electrical resistance, the standard deviation of the recorded resistance and surface roughness of the coating under different tensions were analyzed. Based on these data an optimum ...

2014
Masahiro Kawasaki Masateru Nose Ichiro Onishi Makoto Shiojiri

Nanocomposite films of metal nitrides such as TiN/Si3N4, TiN/BN, and CrN/AlN have attracted substantial attention as coating materials for improving hardness and saving rare metals. It is difficult to prepare composite films consisting of nitride and oxide by conventional reactive sputtering methods. Nose et al. developed a differential pumping cosputtering (DPCS) system, which can fabricate di...

2004
Herzl Chai

The competition between transverse surface and sub-surface cracks in a thin, hard coating bonded to polycarbonate substrate due to spherical indentation is investigated in real-time as a function of coating thickness and indenter radius. Fine grain (Y-TZP) and medium grain (alumina) ceramics and pre-abraded amorphous glass are used for the coating. As the coating thickness is reduced, the famil...

2016
T. Howarth X.-Q. Bao V. Varadan

A multilayer encapsulated coating has been developed for underwater acoustic attenuation purposes. This coating provides an option for electronically activating encapsulated piezoelectric devices to increase the coatings passvie sound attenuation performance through active control methods. These methods include the ability to sense the incident and reflected acoustic pressure field and produce ...

Journal: :Journal of the Korean Society of Manufacturing Process Engineers 2014

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