chemical vapor deposition – TechConnect Briefs

Anti-Fouling CVD Coatings and Surface Modifications for Industrial Applications

Patterson L., Smith D., SilcoTek Corporation, US

Academia has witnessed a surge in novel coating materials and methods to control the behavior of surfaces in a variety of applications, specifically where non-stick properties (low surface energy) are desired. However, few of these [...]

Continuous Growth of Vertically Aligned Carbon Nanotubes Forests

Guzman de Villoria R., Wardle B.L., Massachusetts Institute of Technology, US

Vertically aligned carbon nanotubes are one of the most promising materials due their numerous applications in flexible electronic devices, biosensors and multifunctional aircraft materials, among others. However, the costly production of aligned carbon nanotubes, generally [...]

Development of Aligned Carbon Nanotubes (CNTs) for Pressure Sensing Application

Mohamed N.M., Lai M.K., Begam K.M., University Technology PETRONAS, MY

The paper reports on the investigation of using aligned carbon nanotubes (CNTs) as the pressure sensing element. Besides the unique advantages of high sensitivity, small size, low power consumption, and strong mechanical stability, the driving [...]

Low-Energy, Solventless Coating Processes

Lewis H.P., GVD Corporation, US

GVD Corporation is commercializing solvent-free, chemically-pure polymer coatings formed by chemical vapor deposition (CVD). GVD’s all-dry coatings currently range from fluorocarbons to silicones to electrically-conductive polymers. These novel coatings are deposited from the vapor phase, [...]

Large scale synthesis of SiC nanofibers from various carbon precursors

Ritts A.C., Li H., Yu Q., University of Missouri-Columbia, US

In this proceeding submicron and micron sized graphitic particles were compared with MWNTs as precursors for producing several grams of SiC nanofibers in a 3’’ diameter hot-walled chemical vapor deposition reactor. Nickel nitrate and the [...]

High Strength Metal-Carbon Nanotube Composites

Goyal A., Wiegand D.A., Owens F.J., Iqbal Z., New Jersey Institute of Technology, US

Carbon nanotubes have been extensively investigated for developing polymer matrix nanocomposites and a number of such nanocomposites are already being used in various applications [1, 2]. Metallic composites, particularly those of aluminum, containing carbon nanotubes [...]

Novel Reactor Utilizing Selective Heating Catalytic Nanoparticles for Low-Temperature Growth of Carbon Nanotubes

Vasenkov A.V., Kolobov V.V., Carnahan D., CFD Research Corporation, US

Chemical Vapor Deposition (CVD) of carbon nanotubes (CNTs) and carbon nanofibers (CNFs) is a catalytically controlled synthesis requiring catalyst temperatures in excess of 700°C. The CVD synthesis is typically accompanied by significant substrate heating which [...]

Diameter Selective Growth of Vertically Aligned Single Walled Carbon Nanotubes by Ethanol Flow Control

Hahm M.G., Noah M.A., Kwon Y., Jung Y.J., Northeastern University, US

The role of ethanol flow rate in CVD process for the diameter control of vertically aligned-SWNTs is presented. Three different flow rates of ethanol (50, 100, and 200 sccm) were supplied to grow VA-SWNTs while [...]

Study of field emission of multiwalled C nanotubes from arc discharge

Bellucci S., Balasubramanian C., Giannini G., Marchetti M., Micciulla F., Regi M., INFN-Laboratori Nazionali di Frascati, IT

Carbon nanotubes (CNT) were synthesized by DC thermal plasma method. After optimizing the synthesis parameters like the pressure, current etc., the synthesized products especially the anodic deposit was characterized by electron microscopies like Scanning Electron [...]

Modeling of multi-scale processes during plasma-assisted growth of carbon nanotubes

Vasenkov A.V., Kolobov V.I., CFD Research Corporation, US

Multi-Scale Computational Framework (MSCF) has been recently developed for nanostructured materials’ fabrication. This framework integrates a Computational Fluid Dynamic solver for computing reactor scale process, a Kinetic Monte Carlo simulator for the growth of nanostructured [...]