Disclosed is a method for producing a porcelain, a particularly high-strength porcelain, as well as a ceramic insulator is specified. For the production of the porcelain, instead of alumina calcined bauxite (b) used. By simultaneous addition of clay (t) and kaolin (k), each with a proportion of more than 5% by weight - on embedded of foreign metal oxides, a porcelain is achieved, which with respect to a alumina - porcelain in the case of the same mechanical strength can be produced substantially more favorable. The porcelain is particularly suitable for applications for mechanically highly stressed components of the electrical insulation.
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