Abstract: An additive manufacturing powder includes: a metal powder; and a film provided on a particle surface of the metal powder and containing a compound derived from a coupling agent having a hydrophobic functional group. An average particle diameter is 3.0 ?m or more and 30.0 ?m or less, and a water amount is measured by a Karl Fischer method before and after the additive manufacturing powder is subjected to a heat treatment at 200° C. for 24 hours in an air atmosphere, and when the water amount before the heat treatment is set to 1, the water amount after the heat treatment is 0.85 or more and 1.15 or less in terms of mass ratio.

Abstract: A particle coating method includes a heating step of heating soft magnetic metal particles containing an amorphous phase within a temperature range of 100° C. or higher and 500° C. or lower for 0.1 hours or more and 300 hours or less, and an insulating film formation step of forming an insulating film at surfaces of the soft magnetic metal particles by a chemical vapor deposition method. The soft magnetic metal particles preferably contain the amorphous phase at 50 vol % or more.

Abstract: Provided is a method for manufacturing a three-dimensional shaped object, the manufacturing method including: a powder layer formation step of disposing powders containing a forming material of the three-dimensional shaped object in a layer shape and forming a powder layer having a predetermined thickness; and a molded body formation step of discharging, to the powder layer, a binder liquid containing a binder for binding the powders to one another, and forming a molded body in which the powders are bound to one another. In the molded body formation step, in a formation region of the molded body in the powder layer, a discharging amount of the binder liquid per unit area to a first formation region that is a contour portion of the formation region and a discharging amount of the binder liquid per unit area to a second formation region other than the contour portion are discharging amounts different from each other.

Abstract: An additive manufacturing powder includes: a metal powder; and a film provided on a particle surface of the metal powder and containing a compound derived from a coupling agent having a hydrophobic functional group. An average particle diameter is 3.0 ?m or more and 30.0 ?m or less, and a contact angle of water measured at 25° C. by a ?/2 method, in a state where the additive manufacturing powder is subjected to a heating treatment at 200° C. for 24 hours in an air atmosphere and then laid in layers, is 80° or more and 150° or less.

Abstract: A powder for additive manufacturing, which is a powder for additive manufacturing to be used in a binder jet additive manufacturing method, includes a metal powder, and a coating film that is provided at surfaces of particles of the metal powder and that contains a compound derived from a coupling agent having a reactive functional group, wherein when an average particle diameter is represented by R [?m], and (R/10)2/(R/10)3 is represented by A, the coating film has a carbon concentration of 0.02A mass % or more and 0.30A mass % or less.

Abstract: An additive manufacturing powder includes: a metal powder; and a coating film provided on a particle surface of the metal powder and containing a compound derived from a coupling agent having a functional group. The additive manufacturing powder has an average particle diameter of 3.0 ?m or more and 30.0 ?m or less. The functional group includes a cyclic structure-containing group, a fluoroalkyl group, or a fluoroaryl group.

Abstract: A particle coating method includes a heating step of heating soft magnetic metal particles containing an amorphous phase within a temperature range of 100° C. or higher and 500° C. or lower for 0.1 hours or more and 300 hours or less, and an insulating film formation step of forming an insulating film at surfaces of the soft magnetic metal particles by a chemical vapor deposition method. The soft magnetic metal particles preferably contain the amorphous phase at 50 vol % or more.