A metal magnetic powder is constituted by metal magnetic grains that each include: a metal phase where the percentage of Fe at its center part is 98 percent by mass or higher, while the mass percentage of Fe at its contour part is lower than that at the center part; and an oxide film covering the metal phase, so as to inhibit oxidation of Fe contained in the metal phase, despite the high content percentage of Fe in the metal phase.

The present disclosure provides a powder material that makes it possible to achieve higher flowability than before and to increase the crushing strength of particles. The powder material of the present disclosure has a dendritic structure 1. The dendritic structure 1 has a cemented carbide composition or a cermet composition.

The present disclosure provides a powder material that makes it possible to achieve higher flowability than before and to increase the crushing strength of particles. The powder material of the present disclosure has a dendritic structure 1. The dendritic structure 1 has a cemented carbide composition or a cermet composition.

A mixed silver powder and a conductive paste comprising the powder are disclosed. The mixed silver powder is obtained by mixing two or more spherical silver powders having different properties from each other. The mixed powder may minimize the disadvantages of the respective types of the two or more powders and maximize the advantages thereof, thereby improving the characteristics of products. In addition, by comprehensively controlling the particle size distribution of surface-treated mixed silver powder and the particle diameter and specific gravity of primary particles, a high-density conductor pattern, a precise line pattern, and the suppression of aggregation over time can be simultaneously achieved.

Provided are silver particles including a silver powder and a silver layer that includes primary particles, the primary particles being smaller than the silver powder.

Provided are silver particles including a silver powder and a silver layer that includes primary particles, the primary particles being smaller than the silver powder.

A three-dimensional printing kit can include a binding agent including a binder in a liquid vehicle and a particulate build material including from about 80 wt % to 100 wt % stainless steel particles having a D50 particle size from about 5 μm to about 125 μm. From about 75 wt % to 100 wt % of the stainless steel particles can be austenitic stainless steel particles including from about 10 wt % to about 12.3 wt % nickel, from about 10 wt % to about 20 wt % chromium, from about 1.5 wt % to about 4 wt % molybdenum, and up to about 0.08 wt % carbon. The austenitic stainless steel particles can have an equivalent nickel content from about 10 wt % to about 15.5 wt %.

There is provided a silver powder which has a small average particle diameter and a small thermal shrinkage percentage, and a method for producing the same. While a molten metal of silver heated to a temperature (1292 to 1692° C.), which is higher than the melting point (962° C.) of silver by 330 to 730° C., is allowed to drop, a high-pressure water is sprayed onto the molten metal of silver (preferably at a water pressure of 90 to 160 MPa) to rapidly cool and solidify the molten metal of silver to powderize silver to produce a silver powder which has an average particle diameter of 1 to 6 μm and a shrinkage percentage of not greater than 8% (preferably not greater than 7%) at 500° C., the product of the average particle diameter by the shrinkage percentage at 500° C. being 1 to 11 μm.Math.% (preferably 1.5 to 10.5 μm.Math.%).

The invention relates to a method for manufacturing a part including a formation of successive solid metallic layers (20.sub.1 . . . 20.sub.n), superimposed on one another, each layer describing a pattern defined from a digital model (M), each layer being formed by the deposition of a metal (25), called filler metal, the filler metal being subjected to an energy input so as to melt and constitute, when solidifying, said layer, wherein the filler metal is in the form of a powder (25), whose exposure to an energy beam (32) results in melting followed by solidification so as to form a solid layer (20.sub.1 . . . 20.sub.n), the method being characterized in that the filler metal (25) is an aluminum alloy comprising at least the following alloy elements: Ni, according to a weight fraction from 1 to 8%, preferably from 2 to 7%; Zr, according to a weight fraction from 0.3 à 3%, preferably from 0.5 to 2.5%; optionally V, according to a weight fraction from 0 à 4%, preferably from 0.5 to 2%; optionally Cu, according to a weight fraction from 0 à 7%, preferably from 2 to 7%; optionally Fe, according to a weight fraction from 0 à 3%, preferably from 0.5 to 3%.

The invention also relates to a part obtained by this method. The alloy used in the additive manufacturing method according to the invention, allows obtaining parts with remarkable features.

A method of manufacturing a metal hybrid, heat-dissipating material includes the steps of (a) preparing a spherical metal powder and a flake graphite powder having an aspect ratio greater than 1, respectively; (b) preparing a powder mixture by inserting only the spherical metal powder and the flake graphite powder into a container, followed by dry mixing the powder mixture using a multi-axial mixing method for rotating or vibrating the container about two or more different rotation axes without any liquid input and without any mixing aids; (c) manufacturing a green compact by pressing the powder mixture; and (d) sintering the green compact to provide the metal hybrid, heat-dissipating material.