Abstract: A high purity Ru powder wherein the content of the respective alkali metal elements such as Na and K is 10 wtppm or less, and the content of Al is in the range of 1 to 50 wtppm. Further provided is a manufacturing method of such high purity Ru powder wherein Ru raw material having a purity of 3N (99.9%) or less is used as an anode and electrolytic refining is performed in a solution. Further still, provided is a high purity Ru powder for manufacturing a sputtering target which is capable of reducing harmful substances as much as possible, generates few particles during deposition, has a uniform film thickness distribution, has a purity of 4N (99.99%) or higher, and is suitable in forming a capacitor electrode material of a semiconductor memory; a sputtering target obtained by sintering such high purity Ru powder; a thin film obtained by sputtering this target; and a manufacturing method of the foregoing high purity Ru powder.

Abstract: A powder injection molding composition is disclosed. The composition comprises caprolactam and a plurality of particles, where that plurality of particles is selected from a metal powder, a metal hydride powder, a ceramic powder, a ferrite powder, and mixtures thereof. The composition optionally further comprises a wax and polymeric material.

Abstract: A method of fabricating a porous or partially porous three-dimensional metal article for use as a tissue ingrowth surface on a prosthesis. The porous article is formed using direct laser remelting in a cross section of a layer of metallic powder on a build platform without fusing thereto. The power, speed, spot size and beam overlap of the scanning laser is coordinated so that a predetermined porosity of the metallic powder can be achieved. Laser factors also vary depending from the thickness of the powder layer, type of metallic powder and size and size distribution of the powder particles. Successive depositing and remelting of individual layers are repeated until the article is fully formed by a layer-by-layer fashion. In an additional embodiment, a first layer of metallic powder may be deposited on a solid base or core and fused thereto.

Abstract: There is provided a method of preparing nano scale nickel powders by wet reducing process. An embodiment of the method of preparing nickel powders comprises preparing the first solution formed by mixing water and a base, preparing the second solution formed by mixing a polyol and a nickel compound, preparing a mixture by mixing the first solution and the second solution, heating the mixture, and separating the nickel powders generated during heating.