Holding element for a high-temperature furnace

A holding element made of ceramic for a high-temperature furnace, the holding element comprising:

• a surface of the holding element, said surface having a peripheral part with a periphery;
• at least one fastening portion formed on a part of said surface of the holding element for mechanically connecting the holding element to a supporting structure;
• at least one heat conductor receiving portion formed on a part of said surface of the holding element for receiving a heat conductor;
• said peripheral part being located between said fastening portion and said heat conductor receiving portion;
• said peripheral part of said surface having at least one groove formed thereon having a depth and a width;
• said groove extending substantially entirely over said periphery of said peripheral part of said surface and defining at least one imaginary path between said fastening portion and said heat conductor receiving portion along said surface of the holding element crossing said at least one groove;
• and
• said at least one groove having an aspect ratio, formed by a ratio of said depth to said width, of greater than or equal to 1.5.