Patents by Inventor Chris Dometakis

Chris Dometakis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • TiB2 particulate ceramic reinforced Al-alloy metal-matrix composites
    Patent number: 6290748
    Abstract: Two methods of producing a ceramic reinforced Al-alloy metal-matrix composite are described. The first one comprises the steps of dispersing a ceramic phase (of titanium diboride) in a liquid aluminum or aluminum alloy, mixing the ceramic phase with a cryolite or other fluoride flux powder and melting the mixture together with the aluminum or aluminum alloy phase at a temperature of between 700° and 1000° C. In the second method, the fluoride flux is reduced in situ by either molten aluminum or its alloying elements (Mg, Ca) to yield TiB2 crystallites of different size and size distribution that can be predetermined by fixing the flux and alloy composition and the processing temperature.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: September 18, 2001
    Assignee: Merck Pateng GmbH
    Inventors: Animesh Jha, Stuart M. Cannon, Chris Dometakis, Elisabeth Troth