Seed holder of a single crystal growth in front of the direction, single crystal growth in front of the direction and composite material

摘要

The present invention relates to a seed holder (1) of a single crystal growth in front of the direction, wherein the seed holder (1) at least at its surface a composite material and wherein the composite material has a first phase of tantalum carbide and a second phase of tungsten and / or tungsten carbide comprises.Furthermore, the invention relates to a single crystal growth in front of the direction with a seed holder (1) and a receiving vessel (2), wherein the seed holder (1) the receiving vessel (2) associated with it and seed holder (1) and receiving vessel (2) at least on the surface of a composite material consisting of a first phase of tantalum carbide and a second phase of tungsten and / or tungsten carbide, and which also includes a corresponding composite material.