Abstract: An improvement in a high thermal stress connection between a rotationally symmetrical component made of ceramic material and a component made of metallic material is provided in which a connecting part which is elastic and radially and axially resilient connects the ceramic part and the metallic part by means of high temperature soldering. The stresses normally produced by differential expansion of the ceramic part and the metallic part are substantially absorbed by elastic deformation of the connecting part.

Abstract: A turbine rotor is constructed by attaching ceramic turbine blades to a metallic disk. Each of the ceramic blades has an enlarged base which is mounted within an undercut axial groove on the disk. Cushion pads are provided between the turbine blade base and the undercut portion of the groove. The cushion pads are designed with a different radius of curvature than the disk base and a yield pressure which is less than the allowable surface pressure of the ceramic. The rotor construction results in a design which significantly reduces the possibility of turbine blade damage from stresses during use.