A powder including a plurality of particulates, each particulate including a soft magnetic metallic core coated with a continuous dielectric coating having a thickness selected from a range of 100 nanometers to 100 micrometers. The particulates have a mean particle size selected from a range of 100 nanometers to 250 micrometers. Methods for forming the powder are disclosed. A soft magnetic composite component includes a soft magnetic material in a dielectric matrix, wherein (i) the soft magnetic material comprises a plurality of particulates comprising metallic cores, (ii) each metallic core is coated by a continuous dielectric coating covering >90% of a surface area of the metallic core, (iii) the metallic cores are electrically isolated from each other, and (iv) the dielectric coatings of adjacent metallic cores are consolidated together. Methods for formation of the soft magnetic component by additive manufacturing and hot isostatic pressing are disclosed.

A powder including a plurality of particulates, each particulate including a soft magnetic metallic core coated with a continuous dielectric coating having a thickness selected from a range of 100 nanometers to 100 micrometers. The particulates have a mean particle size selected from a range of 100 nanometers to 250 micrometers. Methods for forming the powder are disclosed. A soft magnetic composite component includes a soft magnetic material in a dielectric matrix, wherein (i) the soft magnetic material comprises a plurality of particulates comprising metallic cores, (ii) each metallic core is coated by a continuous dielectric coating covering >90% of a surface area of the metallic core, (iii) the metallic cores are electrically isolated from each other, and (iv) the dielectric coatings of adjacent metallic cores are consolidated together. Methods for formation of the soft magnetic component by additive manufacturing and hot isostatic pressing are disclosed.

The present invention provides an R-T-B based permanent magnet capable of improving a coercive force HcJ while maintaining a residual magnetic flux density Br. The R-T-B based permanent magnet includes Ga. R is one or more selected from rare earth elements, T is Fe or a combination of Fe and Co, and B is boron. The R-T-B based permanent magnet has main phase grains including a crystal grain having an R.sub.2T.sub.14B crystal structure and grain boundaries formed between adjacent two or more main phase grains, and 0.030[Ga]/[R]0.100 is satisfied in which [Ga] represents an atomic concentration of Ga and [R] represents an atomic concentration of R in the main phase grains.

The present invention provides an R-T-B based permanent magnet capable of improving a coercive force HcJ while maintaining a residual magnetic flux density Br. The R-T-B based permanent magnet includes Ga. R is one or more selected from rare earth elements, T is Fe or a combination of Fe and Co, and B is boron. The R-T-B based permanent magnet has main phase grains including a crystal grain having an R.sub.2T.sub.14B crystal structure and grain boundaries formed between adjacent two or more main phase grains, and 0.030[Ga]/[R]0.100 is satisfied in which [Ga] represents an atomic concentration of Ga and [R] represents an atomic concentration of R in the main phase grains.

Provided is a magnetic refrigeration material whose magnetic transition temperature has been adjusted with high accuracy and which includes at least a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material. The absolute value of the difference between the magnetic transition temperature of the present magnetic refrigeration material and a target magnetic transition temperature is 0.7 K or less. The content of the first magnetic refrigeration material and the content of the second magnetic refrigeration material are determined by the magnetic transition temperatures of the first magnetic refrigeration material and the second magnetic refrigeration material and by a target magnetic transition temperature of the magnetic refrigeration material.

A sintered R-T-B based magnet composition includes: R: not less than 27 mass % and not more than 37 mass % (R is at least one rare-earth element which always includes at least one of Nd and Pr), B: not less than 0.75 mass % and not more than 0.97 mass %, Ga: not less than 0.1 mass % and not more than 1.0 mass %, Cu: not less than 0 mass % and not more than 1.0 mass %, and T: 61.03 mass % or more (where T is at least one selected from Fe, Co, Al, Mn and Si and always includes Fe, such that the Fe content is 80 mass % or more in the entire T). [T]/[B] is greater than 14.0. An R amount is greater in the surface than in the center, and a Ga amount is greater in the surface than in the center. [T]/[B] in the surface is higher than [T]/[B] in the center.

A sintered R-T-B based magnet composition includes: R: not less than 27 mass % and not more than 37 mass % (R is at least one rare-earth element which always includes at least one of Nd and Pr), B: not less than 0.75 mass % and not more than 0.97 mass %, Ga: not less than 0.1 mass % and not more than 1.0 mass %, Cu: not less than 0 mass % and not more than 1.0 mass %, and T: 61.03 mass % or more (where T is at least one selected from Fe, Co, Al, Mn and Si and always includes Fe, such that the Fe content is 80 mass % or more in the entire T). [T]/[B] is greater than 14.0. An R amount is greater in the surface than in the center, and a Ga amount is greater in the surface than in the center. [T]/[B] in the surface is higher than [T]/[B] in the center.

To provide a titanium-based porous body that has high void fraction to ensure gas permeability and water permeability for practical use as an electrode and a filter, has a large specific surface area to ensure conductivity and sufficient reaction sites with a reaction solution or a reaction gas, thus showing excellent reaction efficiency, and contains less contaminants because of no organic substance used. A titanium-based porous body having a specific void fraction and a high specific surface area is obtained by filling an irregular-shaped titanium powder having an average particle size of 10 to 50 m in a dry system without using any binder or the like into a thickness of 4.010.sup.1 to 1.6 mm, and sintering the irregular-shaped titanium powder at 800 to 1100 C.

To provide a titanium-based porous body that has high void fraction to ensure gas permeability and water permeability for practical use as an electrode and a filter, has a large specific surface area to ensure conductivity and sufficient reaction sites with a reaction solution or a reaction gas, thus showing excellent reaction efficiency, and contains less contaminants because of no organic substance used. A titanium-based porous body having a specific void fraction and a high specific surface area is obtained by filling an irregular-shaped titanium powder having an average particle size of 10 to 50 m in a dry system without using any binder or the like into a thickness of 4.010.sup.1 to 1.6 mm, and sintering the irregular-shaped titanium powder at 800 to 1100 C.

Disclosed herein are embodiments of methods, devices, and assemblies for processing feedstock materials using microwave plasma processing. Specifically, the feedstock materials disclosed herein pertains to scrap materials, dehydrogenated or non-hydrogenated feed material, and recycled used powder. Microwave plasma processing can be used to spheroidize and remove contaminants. Advantageously, microwave plasma processed feedstock can be used in various applications such as additive manufacturing or powdered metallurgy (PM) applications that require high powder flowability.