A low friction wear surface with a coefficient of friction in the superlubric regime including graphene and nanoparticles on the wear surface is provided, and methods of producing the low friction wear surface are also provided. A long lifetime wear-resistant surface including graphene exposed to hydrogen is provided, including methods of increasing the lifetime of graphene containing wear surfaces by providing hydrogen to the wear surface.

A task of the present invention is to provide an electro-rheological fluid composition and a cylinder device which allow a large ER effect to be obtained, while reducing a current density. An electro-rheological fluid composition (8) of the present invention includes a fluid (32) and a particle (28) having an ion conductivity, the particle (28) having the ion conductivity has a first layer (29) forming a surface of the particle (28) and a second layer (30) forming a part of the particle (28) interior to the first layer (29), and an ion conductivity of the first layer (29) is lower than an ion conductivity of the second layer (30).

A task of the present invention is to provide an electro-rheological fluid composition and a cylinder device which allow a large ER effect to be obtained, while reducing a current density. An electro-rheological fluid composition (8) of the present invention includes a fluid (32) and a particle (28) having an ion conductivity, the particle (28) having the ion conductivity has a first layer (29) forming a surface of the particle (28) and a second layer (30) forming a part of the particle (28) interior to the first layer (29), and an ion conductivity of the first layer (29) is lower than an ion conductivity of the second layer (30).

A compound for enhancing lubrication includes nanoparticles having a size less than 100 nm; and a polyphenol derived agent coating an external surface of the nanoparticles for enhancing the lubrication.

A compound for enhancing lubrication includes nanoparticles having a size less than 100 nm; and a polyphenol derived agent coating an external surface of the nanoparticles for enhancing the lubrication.

Provided are a lubricant whereby particles including a fluororesin can be dispersed and adhered to the surface of an object without the use of a fluorine-based oil as a base oil, an electrical contact having such a lubricant on the surface thereof, and a connector terminal and a wire harness provided with such an electrical contact. The present invention provides a lubricant containing a base oil and resin particles including a trifluoroethylene resin, the content of the resin particles being more than 10 mass % with respect to the mass of the base oil. The present invention also provides an electrical contact 1 which has a metal material as a base material 11 and which electrically contacts another electroconductive member 2, the electrical contact 1 having a layer 14 of the abovementioned lubricant on the surface of the base material. The present invention furthermore provides a connector terminal having the abovementioned electrical contact 1 in a portion thereof for making electrical contact with a mating connector terminal. The present invention also provides a wire harness having the connector terminal.

An engine oil additive includes carbon nanotubes and boron nitride particulates dispersed within a fluid. The additive is configured to be mixed with a quantity of oil such that the quantity of oil has a concentration from 0.05 to 0.5 grams of carbon nanotubes and of boron nitride particulates per quart of oil to improve the lubricity of the oil. The additive improves the horsepower and torque of the engine while reducing fuel consumption. The carbon nanotubes have an —OH functionalized exterior surface. The carbon nanotubes have a diameter from 1 nanometer to 50 nanometers and have a length from 1 micron to 1000 microns. The boron nitride particulates are hex-boron nitride structures having an average size from 30 nanometers to 500 nanometers.

A wire rope is disclosed that comprises metal wires, preferably steel wires, as a load-bearing material, which rope comprises at least one or more strands laid from said metal wires and which rope is lubricated with a lubricant. Another object is the use of the aforementioned lubricant for lubricating a steel rope. The lubricant comprises at least oil and powder substance, which powder substance comprises at least particles whose hardness is greater than 4 on the Mohs scale. A traction sheave elevator comprising such a wire rope as a suspension rope is disclosed, too.

A wire rope is disclosed that comprises metal wires, preferably steel wires, as a load-bearing material, which rope comprises at least one or more strands laid from said metal wires and which rope is lubricated with a lubricant. Another object is the use of the aforementioned lubricant for lubricating a steel rope. The lubricant comprises at least oil and powder substance, which powder substance comprises at least particles whose hardness is greater than 4 on the Mohs scale. A traction sheave elevator comprising such a wire rope as a suspension rope is disclosed, too.

The invention describes a traction drive fluid that comprising a carrier and a particulate solid. The carrier has a boiling point of greater than at least about 100° C., and a melting point of below about 10° C., both being measured at 1 atm pressure. The particulate solid consists of a plurality of laminae. The laminae are homogeneously distributed through the carrier.