Abstract: An insulation element for the thermal insulation of an inductively heatable high-temperature treatment zone. A wall of the insulation element contains a flat material, the resistivity of which is ?F 10-5 to 10-1 ?m and which encloses a hollow space extending through the insulation element and includes a discontinuity, in which the resistivity ?U is greater than ?F. The discontinuity extends from the external surface of the flat material into the flat material but does not interrupt the flat material over the entire cross section of the flat material.

Abstract: A workpiece support contains at least two component elements which are respectively made from a carbon-fiber reinforced carbon (CFC). At least two of the at least two CFC component elements are locked together. The workpiece supports use simple measures and in such a way that undesirable release of the individual component elements is reliably prevented.