METHOD FOR THE PRODUCTION OF AN ELASTIC BODY FROM AI2O3 CERAMICS, MEASURING MEMBRANE FOR A PRESSURE SENSOR, AND PRESSURE SENSOR HAVING SUCH A MEASURING MEMBRANE

摘要

The invention relates to a method for the production of an elastic deformation body from Al2O3 ceramics, utilizing a highly pure alumina having a maximum of 2000 ppm of MgO1, a maximum of 200 ppm of inorganic contaminants, a specific surface of at least 10 m2/g, a mean grain size of a maximum of 0.3 µm, wherein a homogeneous mixture is created using the alumina and additives by means of aqueous processing, from which a spray granulate that can be compressed is created, which is formed into a homogeneous green body by means of a uniaxial compressing method, the green body being subjected to a sintering process, wherein the resulting elastic deformation body has a bending rupture stress sc, the distribution F (sc ) of which is given by the Weibull parameters s0 = 800 MPa and m = 24, and has a mean grain size of the sintered material of less than 2 µm, and wherein the sintered material of the deformation body has a density of less than 3.98 g/m2.