A solid lubricant 11 is formed by molding and firing powder that includes amorphous and self-sintering carbon material powder 12, graphite powder 13, and a binder 14. The solid lubricant has high material strength and hardness, and also excellent impact resistance and wear resistance.

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.

Disclosed is a lubricating engine oil composition comprising a lubricating oil base stock as a major component, and at least one metal or metalloid hydrogen atom donor compound. Also disclosed is a method for preventing or reducing low speed pre-ignition in a direct injected, boosted, spark ignited internal combustion engine, and the use of at least one metal or metalloid hydrogen atom donor compound in a lubricating engine oil composition for preventing or reducing low speed pre-ignition in a direct injected, boosted, spark ignited internal combustion engine.

A heat-conductive silicone grease composition comprising (A) an organopolysiloxane in an amount of 20 to 90 parts by mass, (B) a non-silicone-type organic compound in an amount of 80 to 10 parts by mass (wherein the total amount of the components (A) and (B) is 100 parts by mass) and (C) a heat-conductive inorganic filler having an average particle diameter of 0.5 to 100 m in an amount of 200 to 2,000 parts by mass relative to 100 parts by mass of the total amount of the components (A) and (B), wherein the SP value of the non-silicone-type organic compound (B) is greater than that of the organopolysiloxane (A) (i.e., (B)>(A)), the value obtained by subtracting the SP value of the component (A) from the SP value of the component (B) is greater than 2, and the viscosity of the heat-conductive silicone grease composition is 50 to 1,000 Pa.Math.s at 25 C.

The invention relates to an anti-friction lacquer having a polymer as a resin matrix and functional fillers, the functional fillers containing mixed-phase oxides and optionally further functional fillers. The invention further relates to a sliding element having a metallic substrate layer and a coating which is applied thereon and made of at least such an anti-friction lacquer and to a method for the production thereof.

The disclosure provides for a valve including a surface movably engaged with another surface. A coating is on the surface and is characterized by: a CoF of less than 0.1; a hardness in excess of 1,200 HVN; impermeability to liquids at pressures ranging from 15 and 20,000 psi; a surface finish of 63 or less; and a thickness ranging from 0.5 to 20 mils. The disclosure provides for material constructions including a continuous phase, including a transition metal, and a discontinuous phase, including a solid dry lubricant. The disclosure also provides for a method of depositing a coating that includes depositing a first layer of a coating onto a surface using electroplating, electroless plating, thermal spraying, or cladding, and then depositing a second layer of the coating onto a surface of the first layer using sputtering, ion beam, plasma enhanced chemical vapor deposition, cathodic arc, or chemical vapor deposition.

A mixed powder for powder metallurgy having excellent green compact strength and ejectability is provided. The mixed powder for powder metallurgy includes an iron-based powder; and a copolymerized polyamide, in an amount of 0.3 to 2.0 parts by mass per 100 parts by mass of the iron-based powder, having a melting point of 80 C. to 116 C.

A lubricant, including, by weight: 80-85 parts of a base oil; 1-2 parts of a methyl-silicone oil; 1-2 parts of polymethacrylate; 2-4 parts of pentaerythritol polyisobutylene succinate; 1-2 parts of di-n-butyl phosphite; 2-3 parts of butylhydroxytoluene; 2-4 parts of an ethylene-propylene copolymer; 1-2 parts of an alkenyl succinate; and 3-5 parts of copper nanoparticles. A method of preparing the lubricant includes: adding the base oil, the methyl-silicone oil, the polymethacrylate, the ethylene-propylene copolymer, the butylhydroxytoluene, the alkenyl succinate to a reactor, and stirring a resulting first mixture under normal temperature and pressure at 300-400 rpm for 3-4 hours, to yield a primary product; and adding the di-n-butyl phosphite, the pentaerythritol polyisobutylene succinate, and the copper nanoparticles to the primary product, and stirring a resulting second mixture at 150-250 rpm for 2-2.5 hours.

A problem is to provide a sliding member capable of improving friction characteristics under an environment of a lubricant containing Mo, and a production method therefor. A solution is a sliding member 10, wherein a sliding portion 11 is formed of a metallic material, and the sliding member 10 has, at a surface layer part of the sliding portion 11, a Ti-containing thermally sprayed coating 12 formed by thermally spraying, as a thermal spraying material, a metallic material containing Ti as a composition. The sliding member 10 slides under the environment of the lubricant containing Mo as an additive, in which active Ti exposed on a surface by sliding accelerates decomposition reaction of the additive contained in the lubricant to form a molybdenum disulfide-containing low-friction coating having low friction on the surface of the sliding portion 11.

The invention relates to a polyamide-based sliding material, having fillers that improve the tribological properties, wherein the fillers comprise at least one metal sulfide and/or calcium phosphate. The invention further relates to a plain-bearing composite material, having a metal support layer, in particular made of steel or bronze, optionally a porous carrier layer, in particular made of bronze, and a sliding material, which fills the pores in the carrier layer, and to a three-dimensional shaped body for sliding load, consisting of a sliding material, in particular produced as an injection-molded or extrusion part and/or by additive manufacturing. The invention further relates to a plain-bearing element produced from a plain-bearing composite material comprising a shaped body