摘要:
Provided are a polycrystalline SiC compact capable of achieving uniform plasma etching when used as electrodes and a method for manufacturing the same. A polycrystalline SiC compact has a major surface in which Wa (0 to 10 mm) is 0.00 to 0.05 µm or less, Wa (10 to 20 mm) is 0.13 µm or less, and Wa (20 to 30 mm) is 0.20 µm or less.
摘要:
A method of manufacturing a substrate having a plurality of micro-channels formed therein, the method comprising: providing a suspension containing a substrate material in particulate form and a polymer in a first solvent; introducing the suspension into a mould or extruding the suspension; contacting the suspension with a second solvent to remove at least some of the first solvent from the suspension and thereby form a green body having micro-channels from said substrate material and said polymer; sintering the green body to form a sintered body; and removing at least a portion of a surface layer of the sintered body.
摘要:
A process for providing a fiber cement product is provided the process comprising the steps of • Providing an uncured fiber cement product; • Curing said uncured fiber cement product; • Drying said cured fiber cement product to obtain a humidity of said cured fiber cement product being less than or equal to about 8%w; • Abrasive blasting at least part of the surface of said dried fiber cement product.
摘要:
A method for post-processing a colored zirconium oxide ceramic, the method comprising: putting the colored zirconium oxide ceramic along with a deoxidant into a heating device, conducting a firing process at a preset temperature, and a colorant containing Pr 3+ is used for the coloring, and the deoxidant is excessive with respect to a stoichiometric amount of oxygen in the heating device. The technical solution can completely replace Fe 3+ with Pr 3+ to color the zirconium oxide ceramic yellow.
摘要:
A method for producing a building material includes a first step of applying a first ultraviolet-curable paint onto an inorganic material containing a woody reinforcement and incompletely curing the first ultraviolet-curable paint, a second step of applying a second ultraviolet-curable paint and completely curing the second ultraviolet-curable paint, a third step of polishing the completely cured second ultraviolet-curable paint to smoothen a surface of the completely cured second ultraviolet-curable paint, and a fourth step of applying an enamel paint and curing the enamel paint. In the second step, the second ultraviolet-curable paint is applied while the first ultraviolet-curable paint is incompletely cured.
摘要:
A substrate and a method of manufacturing a catalytic substrate body arranged within the catalytic convertor such that a principal flow of fluid through the catalytic convertor flows along a surface of the substrate body, wherein said surface has a plurality of openings to micro-channels that extend away from said surface; and at least a portion of the surface of the substrate body comprises a catalytically active material, wherein the substrate body is in the form of a pellet; a sheet; solid elongated bodies; solid rods; a solid body having a plurality of bores; a non-tubular elongated body; a non-hollow body; a sheet curved in the form or a spiral; or a combination thereof.
摘要:
Methods and materials for forming in-situ features in a ceramic matrix composite component are described. The method of forming a ceramic matrix composite component with cooling features, comprises forming a preform tape, laying up said preform tape to a desired shape, placing a high-temperature resistant fugitive material insert of preselected geometry in the preform tape of the desired shape, compacting the preform tape of the desired shape, burning out the preform tape of the desired shape, melt infiltrating the desired shape, removing the high-temperature resistant insert to form the cooling features during one of the burning out or the melt infiltrating or following the burning out or the melt infiltrating.
摘要:
The invention relates to working equipment that uses one or more jets of high-pressure fluid at a cryogenic temperature, including a source (1) of cryogenic fluid connected to a mobile tool (4) including fluid-dispensing nozzles (11) for dispensing jets of high-pressure cryogenic fluid, and first and second protection enclosures arranged about the mobile tool (4) and connected to suction means (25). The plant further comprises gas sealing means (23) suitable for and designed to form at least one gas protection barrier between the two enclosures (20, 23) due to the supply of a dry gas into the second enclosure (23). The invention also relates to a method for implementing same and to the use thereof for the surface treatment, blasting, or peeling of a material using a high-pressure cryogenic fluid.