A thermoelectric conversion element includes: a thermoelectric conversion material portion composed of a material having a band gap; a first electrode disposed in contact with the thermoelectric conversion material portion; a second electrode disposed in contact with the thermoelectric conversion material portion and disposed to be separated from the first electrode; and a sealing portion that seals the thermoelectric conversion material portion. A partial pressure of oxygen in a region surrounding the thermoelectric conversion material portion is maintained by the sealing portion so as to be lower than a partial pressure of oxygen in an external air.

A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion and having a core portion, and outer electrodes electrically connected to the coil conductor. The magnetic portion includes a magnetic outer coating and a magnetic base having a protrusion portion. The coil conductor is disposed on the magnetic base such that the protrusion portion is located in the core portion. The magnetic outer coating is disposed so as to cover the coil conductor, and the bottom surface of the magnetic base includes a recessed portion in an area opposite to the protrusion portion.

A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion and having a core portion, and outer electrodes electrically connected to the coil conductor. The magnetic portion includes a magnetic outer coating and a magnetic base having a protrusion portion. The coil conductor is disposed on the magnetic base such that the protrusion portion is located in the core portion. The magnetic outer coating is disposed so as to cover the coil conductor, and the bottom surface of the magnetic base includes a recessed portion in an area opposite to the protrusion portion.

The present disclosure provides a negative electrode material, a preparation method thereof, and an all-solid-state lithium battery. The negative electrode material includes a core and an amorphous lithium-silicon alloy layer cladding the core. The core includes a glassy solid electrolyte and amorphous lithium-silicon alloy particles dispersed in the glassy solid electrolyte. The material of the amorphous lithium-silicon alloy particles is Li.sub.xSi, 0<x4.4. The material of the amorphous lithium-silicon alloy layer is Li.sub.ySi, 0<y4.4.

A magnetic structural body contains core-shell structure particles each including a core section and a shell section covering the surface of the core section. The core section is made of an alloy containing a first metal and a second metal. The shell section is made of an alloy which contains the first metal and the second metal and which has a first metal-to-second metal content ratio different from that of the core section. The first metal is a magnetic metal and has a standard redox potential higher than that of the second metal. The neighboring core-shell structure particles are linearly linked to each other.

A magnetic structural body contains core-shell structure particles each including a core section and a shell section covering the surface of the core section. The core section is made of an alloy containing a first metal and a second metal. The shell section is made of an alloy which contains the first metal and the second metal and which has a first metal-to-second metal content ratio different from that of the core section. The first metal is a magnetic metal and has a standard redox potential higher than that of the second metal. The neighboring core-shell structure particles are linearly linked to each other.

A dynamically impacting method comprising simultaneously peening a substrate surface and forming a thin film of metallic glass on the substrate surface for increasing the surface hardness, fatigue resistance, anti-fracture toughness and corrosion resistance of the substrate simultaneously.

A device including a chamber and a nozzle detachably connected to the chamber, the nozzle defining an aperture, a target carousel disposed within the chamber, a first laser configured to generate a first beam directed toward the target carousel to perform in-situ ablation to form a laser plume, a gas flow system configured to supply gas into the chamber, such that the gas interacts with the laser plume and causes condensation and formation of nanoparticles, and a second laser configured to generate a second beam directed through the interior of the chamber, through the aperture of the nozzle, and toward a substrate disposed outside the device, the second laser beam configured to sinter and crystalize on the substrate the nanoparticles exiting the nozzle.

A device including a chamber and a nozzle detachably connected to the chamber, the nozzle defining an aperture, a target carousel disposed within the chamber, a first laser configured to generate a first beam directed toward the target carousel to perform in-situ ablation to form a laser plume, a gas flow system configured to supply gas into the chamber, such that the gas interacts with the laser plume and causes condensation and formation of nanoparticles, and a second laser configured to generate a second beam directed through the interior of the chamber, through the aperture of the nozzle, and toward a substrate disposed outside the device, the second laser beam configured to sinter and crystalize on the substrate the nanoparticles exiting the nozzle.

A process for producing nickel powder capable of obtaining inexpensive, and also, high-performance nickel powder, even when using wet process. A process for producing nickel powder, including a crystallization step for obtaining nickel crystal powder by reductive reaction in reaction solution in which at least water-soluble nickel salt, metal salt of metal more noble than nickel, reducing agent, alkali hydroxide, amine compound, and water are mixed, wherein the reducing agent to be mixed in the crystallization step is hydrazine, the amine compound is autolysis inhibitor of hydrazine, and contains two or more primary amino groups in molecule, or contains one primary amino group and one or more secondary amino groups in molecule, and ratio of molar number of the amine compound with respect to molar number of nickel in the reaction solution is in a range of 0.01 mol % to 5 mol %.