Abstract: The invention relates to a sintered metal material comprising at least one magnetic part, characterised by directional through-pores having a size of between 1 and 100 ?m, said material having a density varying by less than 20% from one sample of 1 cm3 to another taken from a one-piece part made from the material.

Abstract: 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 Al—Ce 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.

Abstract: A first ceramic member and a second ceramic member are joined together at a lower joining temperature while reducing the loss of bond strength. A method for producing a semiconductor production device component includes a step of providing a first ceramic member including an AlN-based material, a step of providing a second ceramic member including an AlN-based material, and a step of joining the first ceramic member and the second ceramic member to each other by thermally pressing the first ceramic member and the second ceramic member to each other via a joint agent including Eu2O3, Gd2O3 and Al2O3 disposed between the first ceramic member and the second ceramic member.

Abstract: The present invention relates to an amorphous alloy corresponding to the formula: CoaNibMoc(C1-xBx)dXe wherein X is one or several elements selected from the group consisting of Cu, Si, Fe, P, Y, Er, Cr, Ga, Ta, Nb, V and W; wherein the indices a to e and x satisfy the following conditions: 55?a?75 at. % 0?b?15 at. % 7?c?17 at. % 15?d?23 at. % 0.1?x?0.9 at. % 0?e?10 at. %, each element selected from the group having a content?3 at. % and preferably ?2 at. %, the balance being impurities.

Abstract: The disclosure provides for a layered metal with resistance to hydrogen induced cracking and method of production thereof, comprising a core metal alloy and a skin metal alloy. The core metal alloy comprises twinned boundaries. The core metal alloy has undergone plastic deformation and a heat treatment. The core metal alloy comprises nickel and cobalt. The skin metal alloy is disposed on the core metal alloy, wherein the skin metal alloy comprises an entropy greater than the core metal alloy. The core metal alloy comprises a greater density of twinned boundaries than the skin metal alloy. The skin metal alloy comprises a stacking fault energy of at least about 50 mJ/m2, and the skin metal alloy comprises iron, aluminum, and boron.

Abstract: Provided are gold-coated flat silver particles, a dispersion including the gold-coated flat silver particles and a dispersion medium, a method of the dispersion, a coating film including the gold-coated flat silver particles, and an antireflection optical member. The gold-coated flat silver particles include flat silver particles and a gold coating layer, in which an average thickness of the gold coating layer on principal planes of the particles is 0.1 nm to 2 nm, and a ratio of the average thickness of the gold coating layer on the principal planes of the particles to an average thickness of the gold coating layer on edge surfaces of the particles is 0.02 or higher.

Abstract: A multi-material component joined by a high entropy alloy is provided, as well as methods of making a multi-material component by joining dissimilar materials with high entropy alloys.

Abstract: Fuel cell alloy bipolar plates. The alloys may be used as a coating or bulk material. The alloys and metallic glasses may be particularly suitable for proton-exchange membrane fuel cells because of they may exhibit reduced weights and/or better corrosion resistance. The alloys may include any of the following AlxCuyTiz, AlxFeyNiz, AlxMnyNiz, AlxNiyTiz, CuxFeyTiz, CuxNiyTiz, AlxFeySiz, AlxMnySiz, AlxNiySiz, NixSiyTiz, and CxFeySiz. The alloys or metallic glass may be doped with various dopants to improve glass forming ability, mechanical strength, ductility, electrical or thermal conductivities, hydrophobicity, and/or corrosion resistance.

Abstract: In a terminal material with a silver coating film including a silver layer on a surface, a terminal and a terminal material having high reliability are easily manufactured with low cost without a heat treatment. A base material formed of copper or a copper alloy; and nickel layer, an intermediate layer, and a silver layer laminated on the base material in this order are included, the nickel layer has a thickness of 0.05 ?m to 5.00 ?m and is formed of nickel or a nickel alloy, the intermediate layer has a thickness of 0.02 ?m to 1.00 ?m and is an alloy layer containing silver (Ag) and a substance X, and the substance X includes one or more kinds of tin, bismuth, gallium, indium, and germanium.

Abstract: A composite panel having a plurality of carbon plies, a perforated metallic foil comprising several apertures and being directly secured to the plurality of carbon plies, and a protective layer made from resin reinforced with fibers which is secured to the metallic foil. The perforated metallic foil is embedded in the protective layer through its apertures. A free surface of the protective layer forms a top side of the composite panel. The thickness of the protective layer between the top side of the composite panel and the perforated metallic foil is at least 15 micrometers and the perforated metallic foil has a thickness of not more than 30 micrometers. The plurality of apertures in the aggregate defines an open area of not more than 40% of the surface area and a maximum distance between two opposed points in a perimeter of an aperture is equal to or less than 3 mm.

Abstract: A multi-material component joined by a high entropy alloy is provided, as well as methods of making a multi-material component by joining dissimilar materials with high entropy alloys.

Abstract: A copper-coated steel wire includes a core wire made of a steel and a coating layer made of copper or a copper alloy which covers an outer peripheral surface of the core wire. The coating layer includes an intermediate layer which is disposed in a region including the interface with the core wire and has a higher zinc concentration than a remaining region of the coating layer.

Abstract: A multi-metallic pressure-controlling component and a hot isostatic pressure (HIP) manufacturing process and system are disclosed. An example multi-metallic component for use in the oil field services industry includes a first metal alloy that forms a first portion of the multi-metallic pressure-controlling component, and a second metal alloy that forms a second portion of the multi-metallic pressure-controlling component. A diffusion bond is disposed at an interface between the first metal alloy and the second metal alloy that joins the first metal alloy to the second metal alloy within the multi-metallic pressure-controlling component.

Abstract: In the production of an internal-tin-processed Nb3Sn superconducting wire, the present invention provides a Nb3Sn superconducting wire that is abundant in functionality, such as, the promotion of formation of a Nb3Sn layer, the mechanical strength of the superconducting filament (and an increase in interface resistance), the higher critical temperature (magnetic field), and the grain size reduction, and a method for producing it. A method for producing a Nb3Sn superconducting wire according to an embodiment of the present invention includes a step of providing a bar 10 that has a Sn insertion hole 12 provided in a central portion of the bar 10 and a plurality of Nb insertion holes 14 provided discretely along an outer peripheral surface of the Sn insertion hole 12, and that has an alloy composition being Cu-xZn-yM (x: 0.

Abstract: A metal porous body having a three-dimensional network structure, includes: a framework forming the three-dimensional network structure; and a coating layer having fine pores and coating the framework, the three-dimensional network structure including a rib and a node connecting a plurality of ribs, the framework including an alkali-resistant first metal, the fine pores having an average fine pore diameter of 10 nm or more and 1 ?m or less, the coating layer including an alkali-resistant second metal and optionally including an alkali-soluble metal, the alkali-soluble metal being contained at a proportion of 0% by mass or more and 30% by mass or less with reference to a total mass of the framework and the coating layer.

Abstract: An aluminum alloy brazing sheet for a heat exchanger includes a three-layer material in which a brazing material layer, an intermediate layer, and a core material are cladded and stacked, the intermediate layer is formed of an aluminum alloy which can include Mn, Si, Fe, and Cu, with the balance being Al and inevitable impurities, the core material is formed of an aluminum alloy which can include Si, Fe, Cu, and Mn, with the balance being Al and inevitable impurities, and the brazing material layer is formed of an aluminum alloy including Si, with the balance being Al and inevitable impurities.

Abstract: A high temperature iron-chromium-aluminium (FeCrAl) alloy tube extending along a longitudinal axis, wherein the tube is formed from a continuous strip of a high temperature FeCrAl alloy and comprises a helical welded seam. The high temperature FeCrAl alloy tube is manufactured by feeding a continuous strip of the high temperature FeCrAl alloy toward a tube shaping station, helically winding the strip such that long edges of the strip abut each other and a rotating tube moving forward in a direction parallel to its longitudinal axis is formed, and continuously joining said abutting long edges together in a welding process directly when the tube is formed, whereby a welded tube comprising a helical welded seam is obtained.

Abstract: A solution for forming an insulation coating of grain-oriented electrical steel sheet includes an aqueous solution prepared by mixing a phosphate solution and colloidal silica. Chromium is not added to the aqueous solution. The colloidal silica includes silica particles surface-modified by an aluminate or is prepared by adding an aluminate to colloidal silica such as conventional colloidal silica.

Abstract: A grain-oriented electrical steel sheet includes: a base steel sheet including, as a chemical composition, by mass %, C: 0.010% or less, Si: 2.50% to 4.00%, Mn: 0.050% to 1.000%, S+Se: 0.005% or less in total, Sol. Al: 0.005% or less, N: 0.005% or less, Bi+Te+Pb: 0% to 0.0300% in total, Sb: 0% to 0.50%, Sn: 0% to 0.50%, Cr: 0% to 0.50%, Cu: 0% to 1.0%, and a remainder of Fe and impurities; and a tension-applying insulation coating provided on a surface of the base steel sheet, in which, on the surface of the base steel sheet, an arithmetic average roughness Ra along a rolling 90° direction that is a direction perpendicular to a rolling direction is 0.60 ?m or less, and when a cross section of the base steel sheet is observed along the rolling 90° direction, recessed parts having a depth of 0.1 ?m or more and 2.0 ?m or less are present on the surface of the base steel sheet in 1.0/100 ?m or more and 6.0/100 ?m or less.

Abstract: A composition of a nickel based alloy mixture which can be used for welding via especially liquid metal deposition or as a powder bed of an additive manufacturing method. A metallic powder mixture includes (in wt %): a cobalt (Co) or nickel (Ni) based super alloy with a content of 20% to 60%, a NiCoCrAlY-composition with a content of 70% to 30% and a metallic braze material with a content between 10% to 5%. The melting point of the braze material is at least 10K lower than the melting point of the nickel or cobalt based superalloy.