A sliding bearing may include an uncoated shaft and a bearing bush. The uncoated shaft may include a shaft material. The bearing bush may include a sintered bearing bush material. The shaft may be slidingly and moveably guided, relative to the bearing bush, within the bearing bush. The bearing bush material may have a residual porosity of 8 percent or more. A volume of the residual porosity may be filled with an oil up to 80 percent or more.

An R-TM-B hot-pressed and deformed magnet (here, R represents a rare earth metal selected from the group consisting of Nd, Dy, Pr, Tb, Ho, Sm, Sc, Y, La, Ce, Pm, Eu, Gd, Er, Tm, Yb, Lu, and a combination thereof, and TM represents a transition metal) of the present invention comprises flat type anisotropic magnetized crystal grains and a nonmagnetic alloy distributed in a boundary surface between the crystal grains, and thus the magnet of the present invention has an excellent magnetic shielding effect as compared with an existing permanent magnet since the crystal gains can be completely enclosed in the nonmagnetic alloy, so that a hot-pressed and deformed magnet with enhanced coercive force can be manufactured through a more economical process.

Preform and manufacturing process producing heterogeneous components with a first fraction (11) made from a first metallic material and having a cellular structure with stochastic or regular cells, and a second fraction (12) made from a second metallic material different from the first metallic material, in which the second fraction (12) at least partly infiltrates the cells of the first fraction (11). The second fraction is poured into the preform which also acts as a mould. The finished product after machining may have a unified surface of the second fraction or several zones exposing the second fraction, the first fraction, the cellular structure which is open or infiltrated with the second metallic fraction, or open zones, in a predetermined design.

A reactive matrix infiltration process is described herein, which includes contacting a surface of a preform comprising reinforcement material particles with a molten infiltrant comprising a matrix material, the matrix material comprising an AlCe alloy, whereby the infiltrant at least partially fills spaces between the reinforcement material particles by capillary action and reacts with the reinforcement material particles to form a composite material form, the composite material comprising the matrix material, at least one intermetallic phase, and, optionally, reinforcement material particles. A composite material form also is described, which includes a plurality of reinforcement material particles comprising a metal alloy or a ceramic, a matrix material at least partially filling spaces between the reinforcement material particles; and at least one intermetallic phase surrounding at least some of the reinforcement material particles. The reinforcement material particles and intermetallic phase together may form a gradient core-shell structure.

A reactive matrix infiltration process is described herein, which includes contacting a surface of a preform comprising reinforcement material particles with a molten infiltrant comprising a matrix material, the matrix material comprising an AlCe alloy, whereby the infiltrant at least partially fills spaces between the reinforcement material particles by capillary action and reacts with the reinforcement material particles to form a composite material form, the composite material comprising the matrix material, at least one intermetallic phase, and, optionally, reinforcement material particles. A composite material form also is described, which includes a plurality of reinforcement material particles comprising a metal alloy or a ceramic, a matrix material at least partially filling spaces between the reinforcement material particles; and at least one intermetallic phase surrounding at least some of the reinforcement material particles. The reinforcement material particles and intermetallic phase together may form a gradient core-shell structure.

A method of producing a compound material including at least one metal and at least one polymer includes: 3D-printing a 3D lattice of the at least one metal; and introducing the at least one polymer into the 3D-lattice.

A composite material includes: coated particles, each of which includes a carbon-based particle made of a carbon-based substance and a carbide layer that covers at least a part of the surface of the carbon-based particle; and a copper phase that binds the coated particles to each other, wherein the carbide layer is made of a carbide containing at least one element selected from the group consisting of Si, Ti, Zr and Hf, and the average particle size of the carbon-based particles is 1 m or more and 100 m or less.

A hardfaced product includes a substrate and a hard composite material bonded to the substrate. The composite material includes boron carbide as a wear-resistant material and a matrix alloy including manganese and at least one of copper, silver, gold, platinum or palladium. The hardfaced product can be made by applying a molten matrix alloy to a substrate wherein the matrix alloy is combined with a wear-resistant material. The matrix alloy includes manganese and at least one of copper, silver, gold, platinum or palladium. The wear-resistant material includes boron carbide.

The present disclosure relates to a method of producing a compound material comprising at least one metal and at least one polymer, a compound material comprising at least one metal and at least one polymer, comprising a 3D-lattice of the at least one metal and a polymer introduced into the 3D-lattice, a component for a vehicle comprising the compound material and a vehicle comprising the component.

A metal-ceramic composite material and a method for forming the same are provided. The metal-ceramic composite material includes a metal body, a plurality of metal oxide nanoparticles and a plurality of ceramic particles. The metal body includes a metal material having a first surface energy. The metal oxide nanoparticles and the ceramic particles are dispersed in the metal body. The ceramic particles have a second surface energy that is higher than the first surface energy.