نتایج جستجو برای: coating thickness hydrodynamic size

تعداد نتایج: 706979  

2016
Hua Cai Peipei Liang Zhigao Hu Liqun Shi Xu Yang Jian Sun Ning Xu Jiada Wu

One-dimensional heterogeneous nanostructures in the form of ZnO-coated TiO2 nanotubes (ZnO/TiO2 NTs) were fabricated by atomic layer deposition of an ultrathin ZnO coating on electrochemical anodization-formed TiO2 nanotubes (NTs) with the thickness of ZnO coating being precisely controlled at atomic scale, and the photoelectrochemical activity of the fabricated ZnO/TiO2 NTs and the influence o...

2010
William R. White Andrew Ogilvie Kevin Chou Erik Novak

In this study, the coating thickness of diamondcoated tools was evaluated and investigated by non-contact measurements. Commercial cobaltcemented tungsten carbide (WC-Co) cutting inserts (edge radii from 5 to 80 microns) were used as substrates for varying CVD-diamond depositions. A white-light interferometer (WLI) was used to acquire the surface profile data around cutting edges. MATLAB algori...

Journal: :Journal of Lubrication Technology 1979

2010
Meng Wang Gui-Zhong Yang Min Wang Tianxi Liu

Polym. Adv g liquid processed polymer deposition method for the film preparation of functional polymers in photo-electronic devices. In this report, the results on the IJP of a fluorenebased electroluminescent polymer, poly(9,9-dihexylfluorene-alt-2,5-dioctyloxybenzene) (PF6OC8), from a piezoelectric droplet generator are presented. The polymer film thickness has been found to show an approxima...

2006
G.-S. Hwang M. Kaviany

Pool boiling on thin, uniform porous coatings is examined experimentally using different copper particle diameters (between 40 and 80 lm), fabrications (loosely packed, shaken, or pressed), and particle characteristics (solid or porous particle) with coating thickness varying between 3 and 5 particle diameters. The results show that the critical heat flux (CHF) is about 1.8 times for all the co...

Journal: :Journal of colloid and interface science 1997
Kataoka Troian

A thin liquid coating can spread vertically beyond the equilibrium meniscus position by the application of a temperature gradient to the adjacent substrate. So called super-meniscus films experience a surface shear stress which drives flow toward regions of higher surface tension located at the cooler end of the substrate. The Marangoni stresses responsible for this spreading process can also b...

2005
J. M. Skotheim L. Mahadevan

We study the lubrication of fluid-immersed soft interfaces and show that elastic deformation couples tangential and normal forces and thus generates lift. We consider materials that deform easily, due to either geometry e.g., a shell or constitutive properties e.g., a gel or a rubber , so that the effects of pressure and temperature on the fluid properties may be neglected. Four different syste...

Journal: :Journal of nanoscience and nanotechnology 2008
L Li E Liu L Z Goh Y P Lee

This work aims to develop and compare two types of conductive, polymer-based coatings via a dip coating process. The first type of coatings was made by dispersing and incorporating carbon black (CB) nanoparticles in a poly(methyl methacrylate) (PMMA) solution followed by dip coating. The CB content and dipping parameters were varied to explore their effects on the particle dispersion, coating t...

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...

Journal: :Journal of the American Chemical Society 2003
Wei-Qiang Han Alex Zettl

BN nanotubes are coated with SnO(2) by a simple chemical reaction in solution. BN nanotubes are stirred inside a SnCl(2) solution at room temperature for 1 h. The coating is uniform with complete coverage. The coating thickness is typically 1-5 nm. The coating layer contains SnO(2) nanoparticles with sizes ranging from 1 to 5 nm.

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