A method for producing a magnetic powder includes performing a reduction treatment on the surface of particles including a hard magnetic material to form core-shell particles each having a shell portion including a soft magnetic material.

Provided is a solder material having oxidation resistance at the time of melting solder or after melting it, as well as managing a thickness of oxide film at a fixed value or less before melting the solder. A Cu core ball 1A is provided with a Cu ball 2A for keeping a space between a semiconductor package and a printed circuit board and a solder layer 3A that covers the Cu ball 2A. The solder layer 3A is composed of Sn or a solder alloy whose main component is Sn. For the Cu core ball 1A, lightness is equal to or more than 65 in the L*a*b* color space and yellowness is equal to or less than 7.0 in the L*a*b* color space, and more preferably, the lightness is equal to or more than 70 and the yellowness thereof is equal to or less than 5.1.

Disclosed are an anode active material for lithium secondary batteries, the anode active material comprising: a core part including a carbon-silicon complex and having a cavity therein; and a coated layer which is formed on the surface of the core part and includes a phosphor-based alloy.

The invention includes apparatus and methods for instantiating precious metals in a nanoporous carbon powder.

Raw material powder containing metal powder as a main component is molded to form a metal powder molded body (3′), and the metal powder molded body (3′) is sintered to form a metal substrate (3). Further, a lubricating member (4) is made of an aggregate of graphite particles (13), and at least a part of a bearing surface (11) is formed of the fabricating member (4). The lubricating member (4) is fitted into the metal powder molded body (3′). After that, the metal powder molded body (3′) is sintered, and at this time, the lubricating member (4) is fixed onto the metal substrate (3) with a contraction force (F) generated in the metal powder molded body (3′).

The present invention relates to a nanometal-flake graphite composite and a method of manufacturing the same, and more particularly, to a nanometal-flake graphite composite, in which nanometal-flake graphite, in which crystallized nanometal particles are highly densely bonded to the surface of flake graphite, is coated with polydopamine to form a polydopamine coating layer which significantly improves properties such as bonding properties between flake graphite basal planes, adhesiveness with other media, and dispersibility, and a method of manufacturing the nanometal-flake graphite composite.

A coated powder composite may include a core particle of Ca or an alloy thereof, or of Mg or an alloy thereof. One or more coating layers may be disposed about the core particle, cladding the core particle. The coated powder composite may be biodegradable.

The present disclosure is directed to modified metal materials for implantation and/or bone replacement, and to methods for modifying surface properties of metal substrates for enhancing cellular adhesion (tissue integration) and providing antimicrobial properties. Some embodiments comprise surface coatings for metal implants, such as titanium-based materials, using (1) electrochemical processing and/or oxidation methods, and/or (2) laser processing, in order to enhance bone cell-materials interactions and achieve improved antimicrobial properties. One embodiment comprises the modification of a metal surface by growth of in situ nanotubes via anodization, followed by electrodeposition of silver on the nanotubes. Other embodiments include the use of LENS™ processing to coat a metal surface with calcium-based bioceramic composition layers. These surface treatment methods can be applied as a post-processing operation to metallic implants such as hip, knee and spinal devices as well as screws, pins and plates.

Heat pipes and methods of forming heat pipes, such as for use in nuclear reactor systems, are described herein. A representative method of forming a heat pipe includes forming a first wicking structure from a first material and forming a second wicking structure on the first wicking structure. Forming the second wicking structure can include mixing a second material and a third material, and heating the mixture of the second material and the third material to a temperature (a) less than a melting temperature of the second material and (b) greater than a melting temperature of the third material to melt the third material. The method can further include cooling the mixture of the second material and the third material to below the melting temperature of the third material such that the third material solidifies to bond together a plurality of particles of the second material into a porous structure.

Novel nanoparticle-coated multilayer shell microstructures are disclosed herein. Some variations of the invention provide a material comprising a plurality of hollow microstructures characterized by an average shortest diameter from about 5 microns to about 1 millimeter, wherein each of the microstructures comprises multiple shells, including at least an inner shell and an outmost shell, with a combined thickness that is less than one-tenth of the average shortest diameter. The inner shell and the outmost shell have different composition. The outmost shell comprises nanoparticles sized between about 10 nanometers to about 500 nanometers, and the nanoparticles each contain an oxide and/or are surrounded by an oxide layer having a layer thickness of at least 1 nanometer. Several microstructure configurations are illustrated in the drawings.