Westinghouse Electric

About: Westinghouse Electric is a company organization based out in Cranberry Township, Pennsylvania, United States. It is known for research contribution in the topics: Brake & Signal. The organization has 27959 authors who have published 38036 publications receiving 523387 citations.

Zirconium oxides formed by hydrolytic condensation of alkoxides and parameters that affect their morphology

Abstract: When zirconium oxides are formed via hydrolytic condensation of zirconium alkoxides, the particle size and morphology of the resultant zirconia is strongly affected by certain parameters during the condensation. These parameters include: the type of alkyl group in the alkoxide, water/alkoxide ratio, molecular separation of species, and the reaction temperature. The particle size and the morphology in turn affect the sintering behaviour and crystalline transformation of ZrO2, In this work the parameters that affect the formation of ZrO2 from zirconium alkoxides are investigated. It has been shown that the alkyl groups and molecular separations during the hydrolytic polycondensation have particular significance in the modification of monoclinic → tetragonal transformation of the resultant ZrO2. Tetragonal phase can also be stabilized by copolymerization of ZrO2 with SiO2 producing tough ceramic materials.

A 6 × 6 inch 20 lines-per-inch liquid-crystal display panel

Abstract: An integrated 14 000 picture element 36-in2flat screen display panel has been constructed by a combination of thin-film transistor and nematic liquid-crystal technology. The design, fabrication, and present performance of the panel is discussed. The design of the peripheral circuits, which permit the presentation of low resolution off-the-air TV pictures on the panel is described in another paper.

Ceramic matrix composite turbine vane

Abstract: A ceramic matrix composite material (CMC) vane for a gas turbine engine wherein the airfoil member (12) and the platform member (14) are formed separately and are then bonded together to form an integral vane component (10). Airfoil member and the platform member may be bonded together by an adhesive (20) after being fully cured. Alternatively, respective joint surfaces (16,18) of the green body state airfoil member and platform member may be co-fired together to form a sinter bond (30). A mechanical fastener (38) and/or a CMC doubter (42) may be utilized to reinforce the bonded joint (40). A matrix infiltration process (50) may be used to create or to further strengthen the bond.