Abstract:
Methods of ex situ synthesis of graphene, graphene oxide, reduced graphene oxide, other graphene derivative structures and nanoparticles useful as polishing agents are disclosed. Compositions and methods for polishing, hardening, protecting, adding longevity to, and lubricating moving and stationary parts in devices and systems, including, but not limited to, engines, turbos, turbines, tracks, races, wheels, bearings, gear systems, armor, heat shields, and other physical and mechanical systems employing machined interacting hard surfaces through the use of nano-polishing agents formed in situ from lubricating compositions and, in some cases, ex situ and their various uses are also disclosed.
Abstract:
A system and method for forming graphene on a substrate and an opposed wear member having a DLC coating. The system includes graphene formed by an exfoliation process to dispose solution processed graphene onto a substrate. The system further includes an opposing wear member of DLC disposed on another substrate and a gas atmosphere of an inert gas like N2.
Abstract:
A piston for internal combustion engines has a skirt coating, consisting of a wear resistant inner layer consisting of a polymer matrix having ceramic particles, aramide fibers and/or carbon fibers dispersed therein and an outer layer consisting of a polymer matrix having solid lubricants dispersed therein and an outer layer consisting of a polymer matrix having solid lubricants dispersed therein.
Abstract:
The present invention concerns a high-temperature lubricant for the hot shaping of high-grade and carbon steels, which has a content of graphite, organic blowing agent and inorganic separation agent, and the use thereof. In order to provide a high-temperature lubricant which can be used for a wide range of steel qualities for different wall thicknesses to be rolled and stretching effects and which is moreover stable in respect of temperature, provides constant rolling results upon a change in the wall thickness and/or the quality of steel and does not lead to unwanted cementation of the rolled material,za the high-temperature lubricant according to the invention contains at least the following constituents in percent by weight with respect to the solids content: (a) 40 to 90% by weight graphite, (b) 2 to 50% by weight organic blowing agent, and (c) 5 to 50% by weight inorganic separation agent, wherein the organic blowing agent (b) is selected from the group consisting of melamine, melam, melem, melon, phosphate salts and polyphosphate salts of the aforesaid compounds with phosphate chain lengths in the region of n=1 to 1000, reaction products and adducts of the aforesaid compounds with cyanuric acid or isocyanuric acid, and mixtures of the aforesaid, and the inorganic separation agent (c) is a sheet silicate or a mixture of sheet silicates.
Abstract:
A protective agent for an image bearing member of an image forming apparatus. The protective agent is applied onto a surface of the image bearing member and includes a hydrophobic organic compound (A), an inorganic fine particle (B), and an inorganic lubricant (C).
Abstract:
An anti-seize composition includes lubricating solids and at least one of a material selected from a grease and an oil. The lubricating solids include at least 15 weight percent of nano-sized lubricating solid particles. The nano-sized lubricating solid particles each have at least one dimension, on average, of less than 500 nm.
Abstract:
Grease for a slide bearing, which can suppress unusual noise attributable to a slip caused between a shaft and a bearing when a machine is stopped. In slide bearing grease 24 supplied to between a slide bearing 16 formed of a porous sintered alloy-made bushing having pores 30 impregnated with lubricating oil 31 and a shaft 22 inserted in the slide bearing 16 and supported to be slidingly rotatable in the circumferential direction, the slide bearing grease 24 employs base oil having dynamic viscosity of 10-70 mm2/s at 40° C. and exuding under a load of the shaft 22 to form an oil film 35 between the slide bearing 16 and the shaft 22.
Abstract:
The present invention provides a refrigerator oil composition which satisfies both sludge dispersibility and prevention of wear and seizing of sliding parts made of aluminum and/or iron, and a compressor and a refrigeration apparatus using the refrigerator oil composition. The refrigerator oil composition is characterized by comprising a base oil which is at least one member selected from mineral oils and synthetic oils, and at least one polyamide compound having two or more amide groups in the molecule and being present in an amount of 0.01 to 5% by mass based on the total amount of the refrigerator oil composition.
Abstract:
A solid lubricant and composition useful for lubricating the flanges of locomotive wheels, railcar wheels, rail tracks and in applications where it is desirable to reduce friction when metal contacts metal. The solid lubricant having from about 25% to about 70% by volume of a biopolymer polymeric carrier, about 5% to 75% percent by volume of organic and inorganic extreme pressure additives, about 0% to 20% by volume synthetic extreme pressure anti-wear liquid oil, and about 0% to 1% by volume optical brightener.