Abstract:
A coated sheave (24) for use in an elevator system in having at least one rope (22) and sheave combination, where the sheave has a predetermined shape and size for engagement with at least one rope in the elevator system. A coating (27) on the sheave has a wear coefficient of at least 80% less than the wear coefficient of the sheave without the coating.
Abstract:
A filter for use in an ultraviolet photocatalytic oxidation air purification system having a filter surface treatment that enhances removal of volatile silicon-containing compounds (VSCCs). The surface treatment may create an acidic site on the filter, increase the surface area of the filter, or facilitate preferential interaction between the surface and the VSCCs, thereby promoting the VSCCs to bond with the VSCC filter. Removal of the VSCCs prior to the VSCCs reaching the photocatalyst increases the useful life of the photocatalyst.
Abstract:
A device for use in a fluid system includes a fuel channel for receiving fuel having dissolved gas therein. A gas permeable membrane supported by a porous support, the gas permeable membrane in communication with the fuel channel. A gas-removal channel adjacent the gas permeable membrane for receiving the dissolved gas from the fuel through the gas permeable membrane and the porous support.
Abstract:
A machining system includes a support configured to retain an article, such as a rotor disk, having an area, such as a surface of a slot in the disk. A cutting tool, for example, a broach, is movable relative to the support to cut the area. A heating member, such as a laser, is configured to locally heat the area of the article. In one example, the cutting tool includes a body having a cutting edge. The heating member is supported by the body and is configured to provide heat adjacent to the cutting edge. The cutting edge cuts the locally heated area while the area is still heated.
Abstract:
A refractory metal composite article includes a refractory metal ceramic section and a refractory metal ceramic coating disposed directly adjacent to the refractory metal ceramic section. The refractory metal ceramic section and the refractory metal ceramic coating form a composite porous matrix. Each of the refractory metal ceramic section and the refractory metal ceramic coating includes at least one of a refractory metal carbide, a refractory metal silicide, or a refractory metal boride. A solid filler is disposed within pores of the composite porous matrix, and the solid filler is selected from a polymer material, a ceramic material, a metallic material, a glass material, and a glass ceramic material.
Abstract:
A machining system includes a support configured to retain an article, such as a rotor disk, having an area, such as a surface of a slot in the disk. A cutting tool, for example, a broach, is movable relative to the support to cut the area. A heating member, such as a laser, is configured to locally heat the area of the article. In one example, the cutting tool includes a body having a cutting edge. The heating member is supported by the body and is configured to provide heat adjacent to the cutting edge. The cutting edge cuts the locally heated area while the area is still heated.
Abstract:
A composite article includes a substrate and a protective layer on the substrate. The protective layer includes a non-oxide ceramic matrix and a refractory phase within the non-oxide ceramic matrix.
Abstract:
A method that redistributes light from a light source. The controller can redistribute light to make an irradiance profile of the light source more uniform or make the irradiance profile match a fluid flow profile. The irradiance profile may be controlled by modifying light leakage from a plurality of waveguides or changing the light-directing properties of reflectors and/or lenses.
Abstract:
A turbine vane includes a platform; and at least one airfoil mounted to the platform and having a trailing edge and a leading edge, wherein the vane is composed of a functionally graded material having a first material and a second material, wherein the trailing edge includes a greater amount of the first material than the second material, and the leading edge includes a greater amount of the second material than the first material.
Abstract:
A process for applying an oxidation resistant coating to an article includes the steps of mixing at least about 10% by volume to up to about 99% by volume of a slurry at least one silica based material having a viscosity of about 1×102 poise to about 1×107 poise at a temperature of about 1,292° F. (700° C.) to about 3,272° F. (1,800° C.) at least about 1% by volume to up to about 90% by volume of the slurry at least one oxygen scavenger, and a liquid medium to form the slurry; coating an article with the slurry to form a slurry coated article; and heat treating under an inert atmosphere the slurry coated article to form an article having at least one oxidation resistant coating layer containing the at least one oxygen scavenger.