Abstract: A method of preparing and testing an array of ceramics for optical properties, comprising: providing a host material that is capable of being made optically transparent or translucent upon sintering; forming the host material into an array of pixels attached to a base plate; doping the host material; reacting the host material and the dopant, to form an array of products; and testing the products for optical properties.

Abstract: A method for producing a spallation-resistant aluminum oxide layer on the surface of a superalloy article is described. An aluminum oxide layer is produced, typically under tensile stress, by chemical vapor deposition at low temperatures on a metal aluminide layer that has been deposited on the surface of the article. The aluminum oxide layer is then heated to induce cracking therein, which imparts spallation-resistance thereto. If desired, a thermal barrier layer may be deposited on the aluminum oxide layer.

Abstract: A method for removing an aluminide coating from a substrate includes the steps of contacting the surface of the substrate with at least one stripping composition to degrade the coating. The stripping composition includes an aliphatic or aromatic sulfonic acid, and at least one additive. The coating is then removed.

Abstract: The invention relates to substantially single phase silicone copolycarbonates suitable for use in optical articles such as digital versatile disks. The silicone copolycarbonates contain residues of silicone containing and nonsilicone containing bisphenols and have properties particularly suited for use in high density optical data storage media. The invention further relates to the preparation and properties of substantially single phase silicone copolycarbonates having either a blocky or a random structure. The structure of the compositions of the invention is determined by the method of preparation used and may be used to control physical properties.

Abstract: Combinatorial high throughput screening is used to rapidly investigate and screen a multiplicity of complex thermal barrier coating candidates. In the screening method, a solution of thermal barrier coating precursors is formed and injected into a plasma jet of an air plasma spray (APS). The plasma jet is directed toward a substrate to deposit a gradient film formed from the precursors onto the substrate. An APS torch system comprises an APS torch, solution precursor vessels connected to the torch through a mixing zone and injector, a substrate oriented with respect to the torch to receive a plasma spray film formed from solution precursors from the vessels and a controller. The controller is connected to the solution precursor vessels and the torch or substrate to control mixing of the solution precursors and to control orientation of the torch or substrate to deposit a gradient film onto the substrate from the plasma spray.

Abstract: A contaminated aqueous composition is withdrawn from a groundwater extraction well and the groundwater is treated in a pump and treat system to remove a contaminant. The treating of the aqueous composition is monitored from a location remote from the groundwater extraction well and the treating is adjusted to remove a contaminant in accordance with the monitoring. A system to treat a contaminated aqueous composition comprises a capture zone to intercept a contaminated aqueous composition and a surface pump and treat system to receive and treat the contaminated aqueous composition from the capture zone. The system also includes a sensor that senses a contaminant in the contaminated aqueous composition and a monitor to receive information concerning the contaminant from the sensor and to consequently control the pump and treat system to treat the contaminated aqueous composition. The monitor is situated at a location remote from the pump and treat system.

Abstract: Method for reducing in situ the electrochemical corrosion potential and susceptibility to stress corrosion cracking of a nickel-base alloy and boiling water nuclear reactor components formed therefrom when in contact with high temperature water. The method comprises the steps of: adding a metal hydride to the high temperature water; dissociating the metal hydride in the high temperature water to form a metal and at least one hydrogen ion; and reducing the concentration of the oxidizing species by reacting the hydrogen ions with an oxidizing species, thereby reducing in situ the electrochemical corrosion potential of the nickel-base alloy. The method may further include the steps of reacting the metal with oxygen present in the high temperature water to form an insoluble oxide and incorporating the metal into the surface of the nickel-base alloy, thereby reducing the electrical conductivity of the surface of the nickel-base alloy.

Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.

Abstract: Polymer are removed from organic solvent-polymer mixtures by preparing a liquid-liquid dispersion of finely dispersed solvent droplets containing polymer in water, adding this liquid-liquid dispersion to a stirred vessel containing water or other suitable liquid and rapidly evaporating the solvent to produce a slurry of the polymer in a liquid from which the solid polymer particles are recovered.

Abstract: A method and apparatus for preventing the formation of leachable mercury in mercury arc vapor discharge lamps is provided which comprises providing in the lamp structure an effective amount of an antioxidant composition and an iron shield wherein the iron shield comprises a dose of elemental mercury.

Abstract: A method for forming at least one product silane, comprising reacting a transition metal hydride with a starting silane in a presence of a catalyst and at a temperature that exceeds a threshold temperature associated with said reacting.

Abstract: An article includes a silicon-containing substrate and a modified mullite coating. The modified mullite coating comprises mullite and a modifier component that reduces cracks in the modified mullite coating. The article can further comprise a thermal barrier coating applied to the modified mullite coating. The modified mullite coating functions as a bond coating between the external environmental/thermal barrier coating and the silicon-containing substrate. In a method of forming an article, a silicon-containing substrate is formed and a modified mullite coating is applied. The modified mullite coating comprises mullite and a modifier component that reduces cracks in the modified mullite coating.

Abstract: An on-line sparging sampling system and method sparges polar and non-polar volatile organic compounds from aqueous discharge. The system comprises a network of tubular members that are interconnected to each other to define a fluid passage, in which the network of tubular members comprises an inlet for influent aqueous discharge into the network of tubular members and an outlet for discharge of aqueous discharge from the on-line sparging sampling and monitoring system; a sparger disposed in the network of tubular members, in which the sparger is disposed between the inlet and the outlet of the aqueous discharge so that aqueous discharge flows by the sparger, the sparger providing inert non-reactive gas to the on-line sparging sampling and monitoring system; and at least one analytic device connected to the on-line sparging sampling and monitoring system for analyzing volatile organic compounds in the aqueous discharge.

Abstract: The acid catalyzed condensation of phenol with acetone in the presence of a thiol promoter to produce bisphenol A is found to occur with greater overall selectivity when the catalyst employed is an amine modified acidic resin catalyst. Amine modified acidic resin catalysts are prepared from acidic resins such as sulfonated polystyrene by neutralization of a portion of the acidic functional groups present with an amine such as pyridine. Where the thiol promoter is itself an amine the use of an amine such as pyridine as the modifying agent reduces the amount of thiol promoter required to achieve high selectivity.

Abstract: This invention relates to a method for preparing diaryl esters, comprising the step of reacting a mixture comprising diaryl carbonate and a dicarboxylic acid, wherein 2.005 to 2.2 molar equivalents of diaryl carbonate per molar equivalent of dicarboxylic acid are provided.

Abstract: Systems and methods for high throughput fabrication and analysis of an array of coated materials. The systems include a movable substrate having a plurality of predefined regions, where a plurality of materials are provided for coating the substrate. A delivery mechanism associated with the plurality of materials delivers a continuously varying mixture of the plurality of materials onto the surface of the substrate. The methods include delivering a continuously varying mixture of a plurality of materials onto the surface of a movable substrate having a plurality of predefined regions to form a predefined coating on each of the regions.

Abstract: An exemplary embodiment of the invention is a method and apparatus for calculating at least one confidence interval. The method comprises activating a calculator. The calculator prompts the user to enter at least three pairs of calibration data. The user then specifies a reference for the calibration data. The calculator then generates a list of the calibration data. The calculator then calculates a linear calibration curve derived from the calibration data. The calculator then calculates a residual calibration value plot derived from the calibration data. The user enters an unknown sample output measurement. The calculator calculates a back-calculated unknown sample input measurement. The calculator lastly calculates a confidence interval for the back-calculated unknown sample input measurement.

Abstract: A fluorosilicone crosslinker and method for making is provided. Reaction is effected between a silanol terminated polyfluoroalkyl silicone fluid and a polyalkoxysilane in the presence of a Platinum Group Metal catalyst. The fluorosilicone crosslinker can be used in combination with a silanol terminated fluoroalkyl substituted polydiorganosiloxane to formulate a neutral, condensation curable, solvent resistant sealant.