Patents by Inventor FRAUNHOFER-GESELLSCHAFT ZUR FOERDER

FRAUNHOFER-GESELLSCHAFT ZUR FOERDER 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).

  • THERMALLY SPRAYED AL203 LAYERS HAVING A HIGH CONTENT OF CORUNDUM WITHOUT ANY PROPERTY-REDUCING ADDITIVIES, AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20130052123
    Abstract: The invention relates to thermally sprayed Al2O3 layers having a high content of corundum without any property-reducing additives, and to a method for the production of said layers. The invention may be utilized particularly in the field of electrical insulation, as a dielectric, and as protection from wear. According to the invention, the thermally sprayed Al2O3 layers are characterized in that they have a porosity of no more than 19%, and a high content of ?-Al2O3 (content of corundum) of at least 72% by volume. The layers have a specific electrical resistance of >1·1012 Ohms·cm, and a purity of >97%. The production according to the invention of said layers is carried out utilizing aqueous or alcoholic suspensions made from pure ?-Al2O3, having a grain size of >100 nm by means of a method from the group of thermal spraying.
    Type: Application
    Filed: October 26, 2012
    Publication date: February 28, 2013
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventor: FRAUNHOFER-GESELLSCHAFT ZUR FOERDER