Patent classifications
B22F9/28
Conductive powder formation method and device for forming conductive powder
A method of forming a conductive powder includes reducing, by a reduction reaction, a conductive powder precursor gas using a plasma to form the conductive powder. The method further includes filtering the conductive powder based on particle size. The method further includes dispersing a portion of the conductive powder having a particle size below a threshold value in a fluid.
DEVICE FOR FORMING CONDUCTIVE POWDER
A device for forming a conductive powder includes a reaction chamber configured to receive a conductive powder precursor gas, an inert gas and a hydrogen gas. The device further includes a radio frequency (RF) power unit configured to ignite a plasma using the inert gas and the hydrogen gas, wherein the plasma is usable to reduce, by a reduction reaction, the conductive powder precursor gas to form the conductive powder. The device further includes powder collecting cells configured to separate the conductive powder based on particle size. The device further includes a solvent inlet configured to provide a solvent to the powder collecting cells for dispersing the conductive powder in a solvent.
DEVICE FOR FORMING CONDUCTIVE POWDER
A device for forming a conductive powder includes a reaction chamber configured to receive a conductive powder precursor gas, an inert gas and a hydrogen gas. The device further includes a radio frequency (RF) power unit configured to ignite a plasma using the inert gas and the hydrogen gas, wherein the plasma is usable to reduce, by a reduction reaction, the conductive powder precursor gas to form the conductive powder. The device further includes powder collecting cells configured to separate the conductive powder based on particle size. The device further includes a solvent inlet configured to provide a solvent to the powder collecting cells for dispersing the conductive powder in a solvent.
METHOD FOR MANUFACTURING A METAL PART MADE FROM TITANIUM, BY RAPID SINTERING, AND SINTERED METAL PART MADE FROM TITANIUM
Disclosed is a method for manufacturing a metal part made from titanium, by sintering a powder, the method comprising a step of mixing a spherical titanium powder and a dendritic titanium powder in order to form a mixture, a step of agglomerating the mixture of titanium powders by compaction with a ram moving at a speed of more than 2 m.Math.s.sup.−1, the mixture of titanium powders being free of binders, in particular organic binders, forming a green body or agglomerate suitable for sintering having a density above 78%, and preferably 80%, of the density of the solid metal, and a step of sintering.
METHOD FOR MANUFACTURING A METAL PART MADE FROM TITANIUM, BY RAPID SINTERING, AND SINTERED METAL PART MADE FROM TITANIUM
Disclosed is a method for manufacturing a metal part made from titanium, by sintering a powder, the method comprising a step of mixing a spherical titanium powder and a dendritic titanium powder in order to form a mixture, a step of agglomerating the mixture of titanium powders by compaction with a ram moving at a speed of more than 2 m.Math.s.sup.−1, the mixture of titanium powders being free of binders, in particular organic binders, forming a green body or agglomerate suitable for sintering having a density above 78%, and preferably 80%, of the density of the solid metal, and a step of sintering.
APPARATUS FOR CONTINUOUSLY PREPARING NANOPOWDER IN WHICH EVAPORATION AMOUNT AND SPEED OF RAW MATERIAL ARE ADJUSTED
An apparatus for continuously preparing nanopowder in which an evaporation amount and speed of a raw material are adjusted is proposed. In one aspect, the apparatus includes a reaction chamber evaporating a raw material using a plasma electrode and a crucible, and a raw material supplier connected to a first side of the reaction chamber and supplying the raw material to the reaction chamber. The apparatus may also include a conveying film moving along a closed loop while capturing and conveying the raw material that has been evaporated or nanopowder that has been crystallized at an upper portion in the reaction chamber. The apparatus may further include a collector connected to a second side of the reaction chamber and collecting the nanopowder conveyed by the conveying film.
Ti—Zr alloy powder and anode containing the same
A Ti—Zr alloy in powder form is described. Sintered pellets containing the Ti—Zr alloy powder of the present invention, as well as capacitor anodes, are further described.
Ti—Zr alloy powder and anode containing the same
A Ti—Zr alloy in powder form is described. Sintered pellets containing the Ti—Zr alloy powder of the present invention, as well as capacitor anodes, are further described.
Magnetocaloric alloys useful for magnetic refrigeration applications
This invention relates to magnetocaloric materials comprising ternary alloys useful for magnetic refrigeration applications. The disclosed ternary alloys are Cerium, Neodymium, and/or Gadolinium based compositions that are fairly inexpensive, and in some cases exhibit only 2.sup.nd order magnetic phase transitions near their curie temperature, thus there are no thermal and structural hysteresis losses. This makes these compositions attractive candidates for use in magnetic refrigeration applications. The performance of the disclosed materials is similar or better to many of the known expensive rare-earth based magnetocaloric materials.
Magnetocaloric alloys useful for magnetic refrigeration applications
This invention relates to magnetocaloric materials comprising ternary alloys useful for magnetic refrigeration applications. The disclosed ternary alloys are Cerium, Neodymium, and/or Gadolinium based compositions that are fairly inexpensive, and in some cases exhibit only 2.sup.nd order magnetic phase transitions near their curie temperature, thus there are no thermal and structural hysteresis losses. This makes these compositions attractive candidates for use in magnetic refrigeration applications. The performance of the disclosed materials is similar or better to many of the known expensive rare-earth based magnetocaloric materials.