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This specification establishes requirements for thermoset protective coatings in powder form.

This specification covers a barrier coating in the form of a ready-to-be applied liquid with a consistency suitable for brush, spray, or dip application to exterior surfaces of aircraft.

This specification covers a coating consisting of finely-powdered graphite in a heat-resistant inorganic binder.

This specification covers a coating consisting of tungsten disulfide without binders and not requiring a curing process.

This specification covers requirements for a coating consisting of finely-powdered molybdenum disulfide in a heat-resistant inorganic binder applied to parts.

Along those lines, General Motors do Brasil started to develop a protective coating that is corrosion resistant and environment friendly. At first, this will be used for fasteners. ...This study describes metallic and organometallic coatings with an increased resistance to corrosion associated to temperature, free of such harmful metals as cadmium, nickel, lead, chromium, etc. ...The friction coefficient is also related to the performance (efficiency) of the screw joint. The coating is completely recyclable, special consideration being given to reduced energy consumption, reduced metal waste and simplified waste handling during coating application to control proliferation and usage of toxic substances.

It will be presented results of different coating systems, designed for each application. It is also discussed the coating engineering required due to the particular running conditions of each product. ...A lot of attention has been given to the development of new materials and coatings that not only minimize friction, but also improve wear resistance. Amorphous carbon (a-C:H, a-C:H:Me and a-C:H;X) known as DLC (Diamond-Like-Carbon) coatings have a high potential to fulfill these requirements, providing significant potential for a solution under these demanding service conditions. ...Amorphous carbon (a-C:H, a-C:H:Me and a-C:H;X) known as DLC (Diamond-Like-Carbon) coatings have a high potential to fulfill these requirements, providing significant potential for a solution under these demanding service conditions.

This paper describes tests of friction-reducing coatings applied to single-cylinder, splash-lubricated, gasoline engines. The suppliers of the coatings anticipated a significant, (10-15%), decrease in fuel consumption as a result of covering most engine contact surfaces with a proprietary, FIFE-type plastic. ...The suppliers of the coatings anticipated a significant, (10-15%), decrease in fuel consumption as a result of covering most engine contact surfaces with a proprietary, FIFE-type plastic. ...To establish coating effectiveness, carefully controlled fuel economy testing of two engines was performed on a water-braise dynamometer at one engine speed and two output torque levels (approximately 70% and 95% of rated load).

Types of lubricant treatments available for GA steels include further iron plating on top of it's surface1), a reaction type prephosphate treatment in which a preparatory fine phosphate coating is formed on the plating and a non-water rinse type prephosphate treatment in which phosphate treatment is conducted without the water rinsing stage.

This specification establishes requirements for three types of corrosion preventative coatings for protection of aircraft integral fuel tanks.

In the present social environment, automobile demands further reduction of fuel consumption and light weight. Now that the reduction of vehicle weight is being pursued, even a slight looseness in each element of an automobile may become a source of vibration and noise due to the lowered rigidity of such an automobile. The quietness of vehicles is urged, spline backlash in the spline mechanism exhibits a problem in some cases. A propeller shaft, a part of the automobile driving system, also has a sliding spline mechanism as shown in Fig. 1. Such a propeller shaft is required to have functions of transmitting high torque driving forces, and absorbing the variation of the vehicle driveline overall length at the same time. Vibration and noise are apt to occur if when torque is applied, there is a significant balance fluctuation or great sliding resistance due to spline backlash.

We have investigated the use of commercially available thin and hard coatings (TiN, TiCN, TiAlN, and CrN) to mitigate the negative effects of EGR on wear. In friction and wear tests with the four-ball machine, we found that all the four coatings deposited on M-50 steel significantly reduced wear in EGR-contaminated oils when compared with uncoated M50 steel balls. ...In friction and wear tests with the four-ball machine, we found that all the four coatings deposited on M-50 steel significantly reduced wear in EGR-contaminated oils when compared with uncoated M50 steel balls.

Most piston rings and metallic sealing rings for modern application where running conditions are severe, require some form of coating to minimise abrasion and corrosion. The piston ring coating improves the life of engine as well as fuel efficiency. ...Wear test of the coating was conducted on pin on disc machine under dry conditions. The wear rate was calculated using mass loss methods on an electronic balance having least count of 1× 10−4 g. ...The wear rate of the coating was found to be increased with increase in load as well as sliding speed for the ion plating with the counter body of tungsten carbide but in the case of ion plating with the HCS & MS it is found to be decreased.

Among them, plasma transferred wire arc (PTWA) thermal spraying coating is becoming popular. Plasma electrolytic oxidation (PEO) coating is also proposed for increasing the wear resistance of aluminum alloy and reducing the friction between the cylinder and piston. ...In this work, a PEO coating with a thickness of ∼20 μm was prepared, and a high speed pin-on-disc tribometer was used to study the tribological behavior of the coating at oil lubricant conditions. Different surface roughness of the coating and a large range of the sliding speeds were employed for the tests. ...In this work, a PEO coating with a thickness of ∼20 μm was prepared, and a high speed pin-on-disc tribometer was used to study the tribological behavior of the coating at oil lubricant conditions.

This thick ceramic coating can be applied to automobile pistons by the new plasma-jet technology. Such coatings are practical and useful for increasing wear-resistance, heat-resistance and corrosion-resistance. ...Thick ceramic coating by plasma-jet spraying represents a novel and essential engineering tool which enables many products to be manufactured economically. ...A 1 mm thick alumina (A12O3) coating on an automobile piston was produced by plasma-jet spraying, thus surpassing the former thick alumina layer of 0.3-0.5 mm.

At first, the ice adhesion shear stress to the surface was investigated experimentally for some of ice-phobic coatings. Then, the icing test of rotating fan in corporate with the ice-phobic coating blades was conducted using a simple model axial fan as an earlier step of experimental study using real fan blade of aircraft engine. ...In the present study, the purpose is to investigate surface coating effect on protection of icing to axial fan blade. At first, the ice adhesion shear stress to the surface was investigated experimentally for some of ice-phobic coatings. ...From these tests, anti/de-icing capability of some typical ice-phobic coating for axial fan blade was confirmed in the icing test using a simple model axial fan. Furthermore, it was confirmed by the icing test that the surface coating effect on protection of icing to axial fan blades was correlated to the ice adhesion shear stress of coating surface.

The novel coating demonstrates contact angles of upwards of 130o and sliding angles of less than 4o, while increasing solar radiation absorption in the visible range by approximately 139% over PTFE-based hydrophobic coatings. Icing wind tunnel tests where the coatings were exposed to visible light in order to simulate solar radiation were performed in a variety of different conditions in order to verify the improved de-icing capabilities introduced by the added graphite. ...Reduced power consumption in these de-icing technologies can be achieved through increased absorption of solar radiation in the visible range while maintaining hydrophobic performance of a coating. In this work, a Polytetrafluorethylene (PTFE) and graphite-based superhydrophobic surface is proposed, which maintains similar hydrophobic performance to standard superhydrophobic surfaces. ...The novel coating demonstrates contact angles of upwards of 130o and sliding angles of less than 4o, while increasing solar radiation absorption in the visible range by approximately 139% over PTFE-based hydrophobic coatings.

These components were coated with Argonne's new low-friction amorphous carbon coating and tested in an air bearing test rig. Results to date show that the coating provides the required friction reduction, as indicated by reduction in time to lift-off of the radial journal bearing during cyclic start/stop testing. ...Results to date show that the coating provides the required friction reduction, as indicated by reduction in time to lift-off of the radial journal bearing during cyclic start/stop testing. The coating also prevented wall climbing which can cause bearing instability. In spite of a slight imbalance in the coated test bearing, wear on the coated surface, which occurred by polishing and mild abrasion, was at an acceptable level.

This Paper presents comparative analysis of heat release in base line and insulated (Piston crown with plasma sprayed zirconia coating) diesel engine. The coating system affects the fuel consumption, the power and the combustion efficiency, pollution contents and the fatigue lifetime of engine components. ...Experimental research of insulated diesel engine incorporating thermal barrier coating (TBC) has produced controversial result. Some publications report that engine efficiency increases with insulation, while others argue that efficiency decreases. ...Several disadvantages such as producing nitrogen oxides also exist when a coating system is used. In this Paper, all effects, advantages and disadvantages of thermal barrier coatings are investigated based on experimental result.

The GPF is used under higher temperatures than diesel engine and the amount of particulate matter (PM) is also less than in a diesel engine, so GPF coating in-the-wall is an effective way to reduce the pressure drop. Also, it was found that a deep coating into the wall helps maintain larger pore diameters and enlarges the flow route of the gas. ...Also, it was found that a deep coating into the wall helps maintain larger pore diameters and enlarges the flow route of the gas. ...At the same time, coating on-the-wall also improved the PM filtration efficiency. This technology is utilized for diesel engine particulate filters (DPF) as well.