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:
Jul. 16, 2013
Filed:
Jun. 23, 2009
Frank Hegner, Lorrach, DE;
Andreas Roβberg, Bad Sackingen, DE;
Frank Kastner, Weiβenborn, DE;
Henry Ludwig, Gera, DE;
Uta Oberbach, Reichenbach, DE;
Frank Hegner, Lorrach, DE;
Andreas Roβberg, Bad Sackingen, DE;
Frank Kastner, Weiβenborn, DE;
Henry Ludwig, Gera, DE;
Uta Oberbach, Reichenbach, DE;
Endress + Hauser GmbH + Co. KG, Maulburg, DE;
Abstract
A method for manufacturing an elastic deformation body made of an AlOceramic according to which a highly pure alumina having at most 2000 ppm MgO, at most 200 ppm inorganic impurities, a specific surface of at least 10 m/g, an average grain size of at most 0.3 μm is applied. With the alumina and additives, there is produced via aqueous processing a homogeneous mixture, from which a pressable spray granulate is produced, which is formed by means of a uniaxial pressing method to a homogeneous, green body, which is subjected to a sinter process. The resulting elastic deformation body has a bending fracture stress σ, whose distribution F(σ) is given by the Weibull parameters σ≧800 MPa and m≧24, with an average grain size of the sintered material of no more than 2 μm, and wherein the sintered material of the deformation body has a density of not less than 3.98 g/cm.