Abstract:
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 unique powder feedstocks such as Tantalum, Yttrium Stabilized Zirconia, Aluminum, water atomized alloys, Rhenium, Tungsten, and Molybdenum. 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.
Abstract:
The present invention relates to particulate compositions for use in alumina-magnesia spinel forming dry vibratable mixtures, the composition comprising, based on the total weight of the particulate composition, 95 to 99.9 wt.-% of a mixture of particulate Al 2 O 3 and particulate MgO; and 0.1 to 5 wt.% binding agent; wherein at least a portion of the particles of said mixture of particulate Al 2 O 3 and particulate MgO is present in the particulate composition as a coating of particles on the surface of other particles. The invention further relates to methods of production of said compositions as well as their uses.
Abstract:
In order to provide a film-forming powder using hydroxyapatite which is a main component of teeth, or hydroxyapatite in which a color tone adjuster is blended, the powder being used in a jet-device for forming a film on a surface of a tooth by spraying the powder on the tooth, and being suitable for forming a film having a high hardness and extremely low solubility in acid in a short period of time, and suitable for forming a film of a powder conforming to the color tone of a tooth in a short period of time; a hydroxyapatite powder calcined in an inert gas atmosphere at 600 to 1350°C, a powder obtained by applying to the hydroxyapatite powder calcined at 600 to 1350°C plasma irradiation, or plasma irradiation and mechanical energy, and additionally a film-forming powders obtained by blending color tone adjusters into these hydroxyapatite powders are produced.
Abstract:
The present invention has an object to improve a tolerance of a refractory to be used repeatedly or for a long period of time, such as a refractory for casting, especially a nozzle for casting and an SN plate. The refractory for casting of the present invention contains Al 4 O 4 C in the range of 15 to 60% by mass, both inclusive, an Al component as a metal in the range of 1.2 to 10.0 % by mass, both inclusive, and a balance including Al 2 O 3 , a free C, and other refractory component; a sum of Al 4 O 4 C, Al 2 O 3 , and the Al component as a metal is 85% or more by mass; and a content of Al 4 O 4 C (Al 4 O 4 C), a content of the Al component as a metal (Al), and a content of the free carbon (C) satisfy following Equation 1 and Equation 2. 1.0 ≤ C / Al 1 O 4 C × 0.038 + Al × 0.33 1.0 ≥ C / Al 4 O 4 C × 0.13 + Al × 0.67
Abstract translation:本发明的目的是提高反复或长时间使用的耐火材料的公差,例如铸造用耐火材料,特别是铸造用喷嘴和SN板。 本发明的铸造用耐火材料含有15〜60质量%的Al 4 O 4 C,其中,作为金属的Al成分在1.2〜10.0质量%的范围内, 余量包括Al 2 O 3,游离C和其他难熔组分; 作为金属的Al 4 O 4 C,Al 2 O 3和Al成分的总和为85质量%以上; Al 4 O 4 C(Al 4 O 4 C)的含量,作为金属的Al成分的含量(Al)和游离碳(C)的含量满足下式1和式2。1.0‰ ¤C/ Al 1 O 4 C×0.038 + Al×0.33 1.0‰C / Al 4 O 4 C×0.13 + Al×0.67
Abstract:
A ceramic composite material for light conversion, which is a solidified body comprising two or more matrix phases with respective components being two or more oxides selected from the group consisting of metal oxides and complex oxides each produced from two or more metal oxides, wherein at least one of the matrix phases is a phosphor phase containing an activated oxide. The solidified body is preferably obtained by the unidirectional solidification method. The ceramic composite material for light conversion is excellent in brightness, light-mixing property, heat resistance and ultraviolet light resistance.