The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
May. 28, 2009
Filofteia-laura Toma, Dresden, DE;
Lutz-michael Berger, Dresden, DE;
Carl Christoph Stahr, Kahl am Main, DE;
Tobias Naumann, Dresden, DE;
Stefan Langner, Dresden, DE;
Filofteia-Laura Toma, Dresden, DE;
Lutz-Michael Berger, Dresden, DE;
Carl Christoph Stahr, Kahl am Main, DE;
Tobias Naumann, Dresden, DE;
Stefan Langner, Dresden, DE;
Abstract
The disclosure provides a method of producing thermally sprayed AlOcoatings having a high content of corundum without any property-reducing additives. The coatings may be utilized particularly in the field of electrical insulation, as a dielectric, and as protection from wear. The thermally sprayed AlOcoatings have a porosity of no more than 19%, and a high content of α-AlO(content of corundum) of at least 72% by volume. The coatings have a specific electrical resistance of >1·10Ohms·cm, and a purity of >97%. The production of said coatings is carried out utilizing aqueous or alcoholic suspensions made from substantially pure α-AlO, having a grain size of >100 nm by thermal spraying.