There is provided a powder material that is for manufacturing a molded article having low porosity and having uniformly present micropores by an additive layer manufacturing method. A powder material for use in additive layer manufacturing contains ceramics and metals, in which a tapped filling rate defined by (tapped density/theoretical density)×100% is 30% or more and less than 40%.

There is provided a powder material that is for manufacturing a molded article having low porosity and having uniformly present micropores by an additive layer manufacturing method. A powder material for use in additive layer manufacturing contains ceramics and metals, in which a tapped filling rate defined by (tapped density/theoretical density)×100% is 30% or more and less than 40%.

A sintered magnet and a method for producing the same are provided. The method includes producing an R—Fe—B-based magnet powder by a reduction-diffusion method, adding a R—Al—Cu powder as a sintering agent to the R—Fe—B-based magnet powder to form a mixed powder, wherein the R—Al—Cu powder is an alloy of R, Al and Cu, and R is Nd, Pr, Dy, Tb or Ce, and sintering the mixed powder to form a sintered magnet.

A sintered magnet and a method for producing the same are provided. The method includes producing an R—Fe—B-based magnet powder by a reduction-diffusion method, adding a R—Al—Cu powder as a sintering agent to the R—Fe—B-based magnet powder to form a mixed powder, wherein the R—Al—Cu powder is an alloy of R, Al and Cu, and R is Nd, Pr, Dy, Tb or Ce, and sintering the mixed powder to form a sintered magnet.

To provide a metal-based structure or nanoparticles whose homogeneity is not deteriorated and whose sticking formation is easy, and a production method thereof with a high safety. A metal-based structure comprises a hydrogen compound, cluster, or an aggregate thereof, represented by the general formula: M.sub.mH. The M is a metal-based atom. The m is an integer of 3 or more and 300 or less. H is a hydrogen atom.

Provided is an interconnect for a solid oxide fuel cell including ferritic stainless steel dispersed with nano-CeO.sub.2 and Nb.sub.2O.sub.5. The interconnect for the solid oxide fuel cell of the present disclosure includes nano-CeO.sub.2 and Nb.sub.2O.sub.5 having specific particle sizes in specific contents, thereby suppressing the formation of the insulating layer SiO.sub.2 and exhibiting an excellent improvement effect of high-temperature characteristics such as oxidation resistance and sheet resistance.

Provided is an interconnect for a solid oxide fuel cell including ferritic stainless steel dispersed with nano-CeO.sub.2 and Nb.sub.2O.sub.5. The interconnect for the solid oxide fuel cell of the present disclosure includes nano-CeO.sub.2 and Nb.sub.2O.sub.5 having specific particle sizes in specific contents, thereby suppressing the formation of the insulating layer SiO.sub.2 and exhibiting an excellent improvement effect of high-temperature characteristics such as oxidation resistance and sheet resistance.

Systems and methods of synthesizing nanoparticles on substrates using rapid, high temperature thermal shock. A method involves depositing micro-sized particles or salt precursors on a substrate, and applying a rapid, high temperature thermal shock to the micro-sized particles or the salt precursors to become nanoparticles on the substrate. A system may include a rotatable member that receives a roll of a substrate sheet having micro-sized particles or salt precursors; a motor that rotates the rotatable member so as to unroll the substrate; and a thermal energy source that applies a short, high temperature thermal shock to the substrate. The nanoparticles may be metallic, ceramic, inorganic, semiconductor, or compound nanoparticles. The substrate may be a carbon-based substrate, a conducting substrate, or a non-conducting substrate. The high temperature thermal shock process may be enabled by electrical Joule heating, microwave heating, thermal radiative heating, plasma heating, or laser heating.

Systems and methods of synthesizing nanoparticles on substrates using rapid, high temperature thermal shock. A method involves depositing micro-sized particles or salt precursors on a substrate, and applying a rapid, high temperature thermal shock to the micro-sized particles or the salt precursors to become nanoparticles on the substrate. A system may include a rotatable member that receives a roll of a substrate sheet having micro-sized particles or salt precursors; a motor that rotates the rotatable member so as to unroll the substrate; and a thermal energy source that applies a short, high temperature thermal shock to the substrate. The nanoparticles may be metallic, ceramic, inorganic, semiconductor, or compound nanoparticles. The substrate may be a carbon-based substrate, a conducting substrate, or a non-conducting substrate. The high temperature thermal shock process may be enabled by electrical Joule heating, microwave heating, thermal radiative heating, plasma heating, or laser heating.

The method of producing a solid spherical powder according to the present disclosure includes: a step A of preparing a first powder raw material containing agglomerated particles and/or solidified particles having a particle diameter of 1 μm to 1,000 μm and introducing the first powder raw material into a plasma flame to produce a hollow spherical powder having a surface layer shell having a thickness of 1 μm to 50 μm; a step B of subjecting the hollow spherical powder to pulverization treatment to pulverize a hollow shape of the hollow spherical powder, thus obtaining a second powder raw material which is solid; and a step C of introducing the second powder raw material into a plasma flame, melting and solidifying the second powder raw material to obtain the solid spherical powder.