The present disclosure relates to a composition that includes a solid core having an outer surface and a coating layer, where the coating layer covers at least a portion of the outer surface, the coating layer is permeable to hydrogen (H.sub.2), and the solid core is capable of reversibly absorbing and desorbing hydrogen.

A method of manufacturing a corrosion- and wear-resistant component and a corrosion- and wear-resistant component. The method includes preparing a feedstock powder that includes a stainless steel powder and a ceramic powder, sintering the feedstock powder at a first temperature to form a low porosity free-standing wear body, and bonding the wear body to an aluminum or aluminum alloy substrate at a second temperature lower than the first temperature.

The iron loss of a dust core is reduced. A dust core (1) includes soft magnetic metal particles (3) having an average particle size of 5 ?m or more and 30 ?m or less, and a particle boundary phase (6). The particle boundary phase (6) includes a polycrystalline compound containing Al (aluminum). When a sectional structure of the dust core (1) is observed, an area percentage of ?-Al.sub.2O.sub.3 in the particle boundary phase (6) is 75% or less. An average thickness Ta of the particle boundary phase (6) is 10 nm or more and 300 nm or less. According to the present invention, the iron loss is reduced.

A method of manufacturing a composite material for thermal shields, and a composite material manufactured by the method are proposed. The method may include preparing a mixed powder including (i) a metal powder including a powder of aluminum or aluminum alloy and (ii) a polymer or ceramic powder. The method may also include sintering the mixed powder through pressureless sintering or spark plasma sintering to produce a composite material. According to the present disclosure, a powder of polymer, ceramic, and/or metal which have a relatively low level of thermal conductivity can be compounded with a metal material including aluminum through a sintering process of powder metallurgy, such as pressureless sintering or spark plasma sintering. Thus, a heterogeneous composite material with a low-level thermal conductivity (10 W/mk or less) can be obtained, and the composite material can be used as a material for various thermal shields.

A method for manufacturing a powder magnetic core using a soft magnetic material powder, wherein the method has: a first step of mixing the soft magnetic material powder with a binder, a second step of subjecting a mixture obtained through the first step to pressure forming, and a third step of subjecting a formed body obtained through the second step to heat treatment. The soft magnetic material powder is an FeCrAl based alloy powder comprising Fe, Cr and Al. An oxide layer is formed on a surface of the soft magnetic material powder by the heat treatment. The oxide layer has a higher ratio by mass of Al to the sum of Fe, Cr and Al than an alloy phase inside the powder.

A conductive paste contains at least a conductive powder, glass frit, and an organic vehicle. The conductive powder contains a noble metal powder such as an Ag powder and a base metal powder containing Cu and/or Ni, and the base metal powder has a specific surface area of less than 0.5 m.sup.2/g. The content of the base metal powder with respect to the total amount of the conductive powder is, in ratio by weight, 0.1 to 0.3 when the base metal powder contains Cu as its main constituent, 0.1 to 0.2 when the base metal powder contains Ni as its main constituent, and 0.1 to 0.25 when the base metal powder contains a mixed powder of Cu and Ni as its main constituent.

The present invention provides a surface alloy coating composite material for a high temperature resistant material, a coating and a manufacturing method thereof, wherein the surface alloy coating composite material is made of metal alloy powder having a face-centered cubic structure and enamel powder, and a component percentage thereof is as follows: 10-70 wt % is the metal alloy powder, and remaining is the enamel powder; the metal alloy powder is selected from at least one type of NiCrAIX, NiCrX and NiCoCrAIX, wherein X is at least one type of hafnium, zirconium, a rare earth element and mixed rare earth, and the mixed rare earth can be two types or more than two types of rare earth elements that are used together or a rare earth element and one type or multiple types of Na, K, Ca, Sr and Ba that are used in a combined way.

A method for manufacturing a powder magnetic core using a soft magnetic material powder, wherein the method has: a first step of mixing the soft magnetic material powder with a binder, a second step of subjecting a mixture obtained through the first step to pressure forming, and a third step of subjecting a formed body obtained through the second step to heat treatment. The soft magnetic material powder is an FeCrAl based alloy powder comprising Fe, Cr and Al. An oxide layer is formed on a surface of the soft magnetic material powder by the heat treatment. The oxide layer has a higher ratio by mass of Al to the sum of Fe, Cr and Al than an alloy phase inside the powder.

There are provided techniques for direct printing material into parts made by additive manufacturing, such as parts made by laser sintering. The direct printed material may be a metal, elastomer, ceramic, or any other material. Further, the direct printed material is typically different than the laser sintering material. Other aspects of the invention include using direct printed materials in the laser sintered parts to improve part strength, provide multi-materials, selectively provide electrical conductivity, and/or provide other desirable features to the parts.

Functionalized metallic feedstock and three-dimensional articles formed therefrom via an additive manufacturing process are provided. The functionalized metallic feedstock includes a plurality of discrete metallic substrates including a first metallic substrate having a first surface area, in which at least a portion of the first surface area comprises a functionalizing agent selected to render the first metallic substrate resistant to corrosion.