The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

A composite is obtained by press-molding a mixed powder comprising 20-50 vol % of a metal powder and 50-80 vol % of a diamond powder for which a first peak in a volumetric distribution of particle size lies at 5-25 m, and a second peak lies at 55-195 m, and a ratio between the area of a volumetric distribution of particle sizes of 1-35 m and the area of a volumetric distribution of particle sizes of 45-205 m is from 1:9 to 4:6, thereby obtaining a composite having a high thermal conductivity and a coefficient of thermal expansion close to that of semiconductor devices, which is easy to mold into a prescribed shape.

A composite is obtained by press-molding a mixed powder comprising 20-50 vol % of a metal powder and 50-80 vol % of a diamond powder for which a first peak in a volumetric distribution of particle size lies at 5-25 m, and a second peak lies at 55-195 m, and a ratio between the area of a volumetric distribution of particle sizes of 1-35 m and the area of a volumetric distribution of particle sizes of 45-205 m is from 1:9 to 4:6, thereby obtaining a composite having a high thermal conductivity and a coefficient of thermal expansion close to that of semiconductor devices, which is easy to mold into a prescribed shape.

A system and a method of making an object from powdered metal are provided. The method includes feeding the powdered metal into a first end of a die. The die is rotated to pull a first portion of the powdered metal into a pressing zone. The first portion of the powdered metal is pressed using high pressure. The die is further rotated to release the first portion of the powdered metal from a second end of the die. A second portion of the powdered metal is then pulled into the first end of the die.

A system and a method of making an object from powdered metal are provided. The method includes feeding the powdered metal into a first end of a die. The die is rotated to pull a first portion of the powdered metal into a pressing zone. The first portion of the powdered metal is pressed using high pressure. The die is further rotated to release the first portion of the powdered metal from a second end of the die. A second portion of the powdered metal is then pulled into the first end of the die.

A magnetic material of the embodiments is a magnetic material including: a plurality of flaky magnetic metal particles, each flaky magnetic metal particle having a flat surface; and an intercalated phase existing between the flaky magnetic metal particles and containing at least one second element selected from the group consisting of oxygen (O), carbon (C), nitrogen (N), and fluorine (F), in which the magnetic material includes the intercalated phase at a volume ratio of from 4% to 17% and includes voids at a volume ratio of 30% or less, and an average angle of orientation between the flat surface and a plane of the magnetic material is 10 or less.

A magnetic material of the embodiments is a magnetic material including: a plurality of flaky magnetic metal particles, each flaky magnetic metal particle having a flat surface; and an intercalated phase existing between the flaky magnetic metal particles and containing at least one second element selected from the group consisting of oxygen (O), carbon (C), nitrogen (N), and fluorine (F), in which the magnetic material includes the intercalated phase at a volume ratio of from 4% to 17% and includes voids at a volume ratio of 30% or less, and an average angle of orientation between the flat surface and a plane of the magnetic material is 10 or less.