Technological Applications of Superhydrophobic Coatings: Needs and Challenges
Abstract
Superhydrophobic coatings represent an important and interesting field of research. This
report begins with a brief discussion about the causes of superhydrophobicity and characterization
of superhydrophobic surfaces. Some recent synthesis techniques and several applications of these
surfaces and coatings are then described followed by a discussion of the major problems that need
to be solved before these applications become widesprea ....etc

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ABSTRACT
Miniaturization is the order of the day. Until recently a decade ago traditionally watch parts were considered to be the micro components one can think off. Recent changes in society s demand have forced us to manufacture variety of micro components used in different fields starting from entertainment electronics to be bio medical implants. Present day manufacturing processes used for miniaturization are the micro electronic fabrication techniques used for Micro Electro Mechanical Systems (MEMS ....etc

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Technological Applications of Superhydrophobic Coatings:Needs and Challenges

Superhydrophobic coatings is an interesting area of research. The superhydrophobicity and the causes of superhydrophobic surfaces is discussed first. By superhydrophobicity we mean the property by whch the device has extreme water repellency and nonwettability of a solid surface. nearly spherical droplets are formed in any other surfaces but in the other surfaces , non-continuous films are formed. The example of this phenomenon can be seen in the natural wo ....etc

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PROTECTIVE COATINGS FOR CONCRETE BRIDGES

Protection of structures is very important for increasing the life of the structure. There is a growing national concern about premature deterioration of our concrete infrastructure projects such as bridges, aqueducts etc. requiring early repair and/or replacement. Use of protective coatings will increase the durability and hence the life of these structures. As most of these structures are made up of concrete and steel, the role that coatings play in protecting the surfa ....etc

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Thermal Barrier Coatings

Heat engines are based on considering various factors such as durability, performance and efficiency with the objective of minimizing the life cycle cost. For example, the turbine inlet temperature of a gas turbine having advanced air cooling and improved component materials is about 1500oC. Metallic coatings were introduced to sustain these high temperatures. The trend for the most efficient gas turbines is to exploit more recent advances in material and cooling technology by going to engine op ....etc

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Introduction

High-temperature protective coatings used in gas turbine components must withstand extremely severe environmental conditions. There are two basic coating systems, which are currently being used in gas turbines to provide improved corrosion and oxidation resistance, and thereby extend the component life. These are called diffusion coatings and overlay coatings. The diffusion coatings provide a surface enrichment of aluminum, chromium, or silicon, and aluminizing behavior of nickel-based superallo ....etc

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Presented by:
Professor Chaim N. Sukenik

Abstract

Reaction chemistry at ordered interfaces; patterning nanoscale assemblies;
monolayers as ultra-thin barrier layers on metals, alloys and polymer composites; surface modification to control biocompatibity; ceramic thin films.

For more details, visit
http://nanocenter.biu.ac.il/ppt/111.ppt ....etc

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Prepared by:
ANUPAMA SAHU


Abstract

Alumina-Titania coatings are excellent candidates for providing protection against abrasive wear and resistant to high temperature erosion. Such coatings are desirable in electrical insulation and anti-wear applications; viz. as protective coatings for sleeve shafts, thermo-couples jackets, pump shafts e.t.c.
Plasma spraying is gaining acceptance as a development of quality coatings of various materials on a wide range of substrates. Coatings made with plasma route ....etc

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Abstract
The germicidal effectiveness of various additives when blended within a microstructure of a cement based system was studied. The relationship between the chemical and physical characteristics of concrete surfaces and their ability to have an enhanced resistance to algal growth was documented through a novel set of laboratory and field testing. The main potential areas of application for these new cement composite systems involve the lining of canal surfaces where fixed-surface biocides are desirable to control biofouling. Different bi ....etc

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