Abstract:
Medical devices implanted or otherwise used in a mammal are made less prone to trigger adverse reactions by use of gas cluster ion-beam (GCIB) surface modification adhere various drug molecules directly into or onto the surface of medical devices, and optionally building adhered drug layers upon the first adhered layer to obtain a desired drug elution profile. This is accomplished without the need for a polymer or any other binding agent to retain the drug.
Abstract:
Bei einem Verfahren zum Beschichten elektrischer Kontakte (1) zum Schutz vor Umwelteinflüssen, wie Korrosion, Verschleiss oder Schmutzablagerung, unter Beibehaltung der elektrischen Leitfähigkeit, soll auf den Kontakt (1) eine Multilage oder eine elektrisch leitfähige Schicht mit einer chemisch funktionellen Oberfläche aufgebracht werden.
Abstract:
An improved method and apparatus for producing an extremely fine micron and sub-micron size water mist (18) using an electronic ultrasonic device (8) that produces the mist at ambient-pressure and delivering the mist for application in suppressing fire. A piezoelectric transducer (10) is arranged to produce a water mist having at least a portion of sub-micron size droplets. The water mist is produced by high frequency pressure waves or ultrasonic waves of predetermined or variable frequency, including frequencies which may exceed 2.5 MHz. The water mist is directed to a firebase to be self-entrained by the fire's flame. The momentum provided the water mist in directing the mist is minimized to enhance the ability of the fire to entrain the mist, and the flow of the carrier medium is usually directed tangentially about the water fountain (16) creating the mist. Further, the throughput and concentration of the mist is controlled to ensure that the entrained mist will be sufficient to cool and suppress the fire. The water mist may be effectively utilized for mitigating blast and reducing over pressures. The fine water mist may also be utilized for humidification because of its fast vaporization and efficient cooling behavior. The apparatus may be modified in its physical design and direction of output, and the method may be modified by adjusting the throughput of mist, composition of mist, concentration of mist, and momentum of mist, whereby fire may be suppressed under many different scenarios.
Abstract:
Coatings, particularly thin films, of polymeric material are produced in accordance with the invention by applying a finely divided aerosol (N) of polymer solution to a substrate (30) and substantially simultaneously applying an energy source (38) to the applied solution to apply the solution. In cases where the polymer is cross-linking, the energy source assists in cross-linking of the polymer. The preferred energy source is a flame (38) that may optionally or desirably deposit material along with the polymer spray. One particular aspect of the invention is directed to production of polyimide films. In accordance with another aspect of the invention, the co-deposition process is used to provide thin polysiloxane coatings on glass and other substrates.
Abstract:
A method and apparatus for coating the outer surface of a workpiece (W) comprises disposing a workpiece (W) in a fixed position along an axis and rotating a thermal spray gun (7) around the axis on a support (5) with a thermal spray (S) thereof directed towards the axis. The powder, fuel and oxygen are rotatably coupled to the gun (7) and the thermal spray gun (7) and the support (5) are moved along the axis while rotating.
Abstract:
The invention relates to a method for coating surfaces, according to which a precursor material is made to react by way of a plasma and the reaction product is deposited on the surface (34), both the reaction and the deposition proceeding at atmospheric pressure. According to the inventive method, a plasma jet (28) is produced by passing a working gas through an excitation zone (12) and the precursor material is supplied to the plasma jet by means of a lancet (32) separately from the working gas.
Abstract:
The invention relates to a coating material on a water basis containing molecules that have hydrophobic groups. The inventive material further comprises smaller, thermally unstable and/or volatile and/or organic molecules that interact with the hydrophobic molecules so as to bring about a stabilization in the aqueous phase.
Abstract:
A thermal spray system (100) may include a thermal spray torch (110) configured to produce an emission (111) of material, at least one camera (121,123) configured to capture an image of the emission (111) of material emitted by the thermal spray torch (110), a diagnostic device (125) communicatively coupled to the at least one camera (121,123), and a controller (113) communicatively coupled to the diagnostic device. (125) The camera (121,123) may be configured to transmit an image of the emission (111) of material to a diagnostic device (125) that may be configured to determine a characteristic of the emission (111) of material based on the image. The diagnostic device (125) may transmit the characteristic to a controller (113) that may control a position of the thermal spray torch (110) based on the characteristic.