Endress + Hauser Gmbh + Co. Kg

Endress+hauserse+co. Kg

Uta Oberbach

Frank Hegner

Andreas Roβberg

Henry Ludwig

Frank Kastner

Andreas Roßberg

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 &#x3bc;m 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 &#x3c3;, whose distribution F(&#x3c3;) is given by the Weibull parameters &#x3c3;&#x2267;800 MPa and m&#x2267;24, with an average grain size of the sintered material of no more than 2 &#x3bc;m, and wherein the sintered material of the deformation body has a density of not less than 3.98 g/cm.

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Reichenbach, Germany

Uta Oberbach