A nanoparticle of a decomposition product of a transition metal aluminum hydride compound, a transition metal borohydride compound, or a transition metal gallium hydride compound. A process of: reacting a transition metal salt with an aluminum hydride compound, a borohydride compound, or a gallium hydride compound to produce one or more of the nanoparticles. The reaction occurs in solution while being sonicated at a temperature at which the metal hydride compound decomposes. A process of: reacting a nanoparticle with a compound containing at least two hydroxyl groups to form a coating having multi-dentate metal-alkoxides.

A three-dimensional chiral nanostructure according to an embodiment of the present invention comprises: metal nanoparticles having a chiral structure: and a coating layer enclosing the metal nanoparticles. The metal nanoparticle is formed in a polyhedral structure having an R region and an S region in which atoms are arranged clockwise and counterclockwise, respectively, in the order of (111), (100), and (110) crystal faces on the basis of the chiral center, wherein at least a portion of the edges form a curve tilting and extending from the R or S region so that the metal nanoparticle has a chiral structure.

A three-dimensional chiral nanostructure according to an embodiment of the present invention comprises: metal nanoparticles having a chiral structure: and a coating layer enclosing the metal nanoparticles. The metal nanoparticle is formed in a polyhedral structure having an R region and an S region in which atoms are arranged clockwise and counterclockwise, respectively, in the order of (111), (100), and (110) crystal faces on the basis of the chiral center, wherein at least a portion of the edges form a curve tilting and extending from the R or S region so that the metal nanoparticle has a chiral structure.

A three-dimensional chiral nanostructure according to an embodiment of the present invention comprises: metal nanoparticles having a chiral structure: and a coating layer enclosing the metal nanoparticles. The metal nanoparticle is formed in a polyhedral structure having an R region and an S region in which atoms are arranged clockwise and counterclockwise, respectively, in the order of (111), (100), and (110) crystal faces on the basis of the chiral center, wherein at least a portion of the edges form a curve tilting and extending from the R or S region so that the metal nanoparticle has a chiral structure.

Provided is a bonding sheet using a copper particle that is less prone to deteriorate the sintering property due to oxidation of the copper particle, and can form a dense bonding layer having fewer voids, and can also bond an electronic component and the like with a high bonding strength. A bonding sheet (1) contains a copper particle (2) and a solvent (3) having a boiling point of 150° C. or higher, in which the copper particle (2) has a surface covered with an organic protective film, the content ratio of the copper particle (2) to the solvent (3) is in the range of 99:1 to 90:10 by mass, and the BET diameter of the copper particle (2) is in the range of 50 nm to 300 nm both inclusive.

Provided is a bonding sheet using a copper particle that is less prone to deteriorate the sintering property due to oxidation of the copper particle, and can form a dense bonding layer having fewer voids, and can also bond an electronic component and the like with a high bonding strength. A bonding sheet (1) contains a copper particle (2) and a solvent (3) having a boiling point of 150° C. or higher, in which the copper particle (2) has a surface covered with an organic protective film, the content ratio of the copper particle (2) to the solvent (3) is in the range of 99:1 to 90:10 by mass, and the BET diameter of the copper particle (2) is in the range of 50 nm to 300 nm both inclusive.

In the porous substrate loaded with porous nano-particles structure and one-step micro-plasma production method thereof, since the micro-plasma system enhances the electron density and promotes reaction speed in the reaction without generating thermal effect, the method may be performed at an atmosphere environment. The nano-particles also can be quickly obtained by aforementioned micro-plasma system. The electromagnetic field generated by the micro-plasma can drive the nano-particles to be loaded onto the porous substrate in a one step, rapid and low cost process to improve the conventional techniques which require a relatively long procedure time and a complicated process.

A three-dimensional shaped object manufacturing method includes a first step of acquiring shape data corresponding to a three-dimensional shaped object, a second step of generating, using the shape data, first intermediate data including path information indicating a path along which a depositing unit moves while depositing a shaping material and depositing amount information indicating a depositing amount of the shaping material, a third step of generating second intermediate data by changing the first intermediate data to increase an amount of the shaping material deposited and specifying a gap region interposed between regions where the shaping material is deposited according to the second intermediate data, a fourth step of generating shaping data by changing the first intermediate data or the second intermediate data such that the shaping material is deposited in the specified gap region, and a fifth step of shaping the three-dimensional shaped object according to the shaping data.

Provided is an iron-based soft magnetic powder for dust cores that enables production of a dust core having high density and low iron loss. An iron-based soft magnetic powder for dust cores comprises: an iron-based soft magnetic powder; a condensed aluminum phosphate layer on particle surfaces of the iron-based soft magnetic powder; and a silicone resin layer on a surface of the condensed aluminum phosphate layer, wherein the condensed aluminum phosphate layer is a continuous coating, and a total mass of the condensed aluminum phosphate layer and the silicone resin layer is 0.60 mass % or less with respect to 100 mass % of a total mass of the iron-based soft magnetic powder, the condensed aluminum phosphate layer, and the silicone resin layer.

Provided is an iron-based soft magnetic powder for dust cores that enables production of a dust core having high density and low iron loss. An iron-based soft magnetic powder for dust cores comprises: an iron-based soft magnetic powder; a condensed aluminum phosphate layer on particle surfaces of the iron-based soft magnetic powder; and a silicone resin layer on a surface of the condensed aluminum phosphate layer, wherein the condensed aluminum phosphate layer is a continuous coating, and a total mass of the condensed aluminum phosphate layer and the silicone resin layer is 0.60 mass % or less with respect to 100 mass % of a total mass of the iron-based soft magnetic powder, the condensed aluminum phosphate layer, and the silicone resin layer.