Ultrasonic energy system and method including a ceramic horn

Details Ultrasonic energy system and method including a ceramic horn Ultrasonic energy system and method including a ceramic horn

H - Electricity

04

R

H04R 17/00 (2006.01) B01J 19/10 (2006.01) B06B 1/06 (2006.01)

Patent

CA 2520912

An acoustic system for applying vibratory energy including a horn connected to an ultrasonic energy source. The horn defines an overall length and wavelength, and at least a leading section thereof is comprised of a ceramic material. The leading section has a length of at least 1/8 the horn wavelength. In one preferred embodiment, an entirety of the horn is a ceramic material, and is mounted to a separate component, such as a waveguide, via an interference fit. Regardless, by utilizing a ceramic material for at least a significant portion of the horn, the ultrasonic system of the present invention facilitates long-term operation in extreme environments such as high temperature and/or corrosive fluid mediums. The present invention is useful for fabrication of metal matrix composite wires.

L'invention concerne un système acoustique destiné à appliquer de l'énergie vibratoire, comportant un cornet connecté à une source d'énergie ultrasonique. Ledit cornet définit une longueur d'ensemble et une longueur d'ondes, et au moins une section avant dudit cornet est réalisée en matériau céramique. Ladite section avant a une longueur d'au moins 1/8 de la longueur d'ondes du cornet. Dans un mode de réalisation préféré, l'ensemble du cornet est réalisé en matériau céramique et est monté sur un composant séparé tel qu'un guide d'ondes, par ajustement serré. L'emploi d'un matériau céramique dans au moins une partie significative du cornet permet d'obtenir un système ultrasonique dont l'utilisation à long terme est simplifiée dans des milieux extrêmes tels que des fluides haute température et/ou corrosifs. Le système selon l'invention sert à la fabrication de fils composites à matrice métallique.

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