The present invention provides a nickel nanowires-containing paste having an adequately high thermal curing rate even under comparatively low temperature, which is excellent in functional properties such as an electrical conductivity, strength properties (in particular, a bending property), a water-resisting property, a salt water-resisting property and electromagnetic-wave shielding properties, from which a cured structure excellent in an electrical conductivity can be obtained even if it is stored for a long time. The present invention relates to a paste comprising nickel nanowires, an alkoxy-alkylated polyamide and a glycol.

There is provided a paste composition using copper fine particles that are capable of exhibiting conductivity after low-temperature sintering, which themselves are less oxidized, and that can be produced with a high yield ratio. A paste composition contains: (A) copper fine particles having a thickness or minor axis of 10 to 500 nm and coated with amino alcohol represented by the chemical formula (1) and (B) an organic solvent.

Provided is a metal-containing particle which can be bonded to another particle or another member by melting a tip of a protrusion in the metal-containing particle at a relatively low temperature and solidifying the melt after melting, enhance connection reliability, suppress an ion migration phenomenon, and enhance insulation reliability. The metal-containing particle according to the present invention is a metal-containing particle, an outer surface of which has a plurality of protrusions, in which the metal-containing particle includes a base particle, a metal section which is disposed on a surface of the base particle, an outer surface of the metal section having a plurality of protrusions, and a metal film covering the outer surface of the metal section, and a tip of the protrusion in the metal-containing particle is meltable at 400 C. or less.

This invention relates to a method of evaluating a squeegeeing property of powder for lamination shaping by stable criteria. In this method, the squeegeeing property is evaluated using at least a satellite adhesion ratio of the powder and an apparent density of the powder. The satellite adhesion ratio is the ratio of the number of particles on which satellites are adhered to the number of all particles. If the satellite adhesion ratio is equal to or less than 50%, and the apparent density is equal to or more than 3.5 g/cm.sup.3, the squeegeeing property is evaluated as that the powder can be spread into a uniform powder layer in the lamination shaping. Furthermore, if the 50% particle size of a powder obtained by a laser diffraction method is 3 to 250 m, the squeegeeing property is evaluated as that the powder can be spread into a uniform powder layer in the lamination shaping.

A method for manufacturing a powder magnetic core includes: a step of preparing a soft magnetic powder and an oxide powder and preparing, as a raw material powder, a mixed powder of the soft magnetic powder and the oxide powder, the soft magnetic powder containing composite soft magnetic particles containing pure iron and an Fe- alloy having an element more oxidizable than Fe, the composite soft magnetic particles each having a core-shell structure where a core is made of one of pure iron and the Fe- alloy and a shell is made of the other, the oxide powder containing oxide particles containing at least one selected from Fe and an element that forms an oxide having higher electrical resistance than Fe.sub.3O.sub.4; a step of compacting the mixed powder into a green compact; and a step o sintering the green compact at 900 C. or more and 1300 C. or less.

A method for heat treating a superalloy component includes heating a superalloy component to a first temperature, cooling the superalloy from the first temperature to a second temperature at a first cooling rate in a furnace, and cooling the superalloy component from the second temperature to a final temperature at a second cooling rate. The second cooling rate is higher than the first cooling rate.

A method for heat treating a superalloy component includes heating a superalloy component to a first temperature, cooling the superalloy from the first temperature to a second temperature at a first cooling rate in a furnace, and cooling the superalloy component from the second temperature to a final temperature at a second cooling rate. The second cooling rate is higher than the first cooling rate.

A method for heat treating a superalloy component includes heating a superalloy component to a first temperature, cooling the superalloy from the first temperature to a second temperature at a first cooling rate in a furnace, and cooling the superalloy component from the second temperature to a final temperature at a second cooling rate. The second cooling rate is higher than the first cooling rate.

A method for heat treating a superalloy component includes heating a superalloy component to a first temperature, cooling the superalloy from the first temperature to a second temperature at a first cooling rate in a furnace, and cooling the superalloy component from the second temperature to a final temperature at a second cooling rate. The second cooling rate is higher than the first cooling rate.

A material which can be used to manufacture components which exhibit high strength and high wear resistance, at the same time possessing reasonable ductility. The material also has cost advantages compared to other potential metal powder solutions. An iron based powder composition which achieves desired microstructure/properties and associated sliding wear resistance with reduced content of expensive alloying ingredients such as admixed elemental Ni and Copper.