Thermal sheild stone for covering the wall of a combustion chamber, combustion chamber and a gas turbine

摘要

A thermal shield stone for covering the wall of a combustion chamber. The stone includes a hot side which can be exposed to a hot medium and a wall side which is arranged opposite the hot side. A hot side area adjoins the hot side. The wall side adjoins a wall side area. The average particle size in the wall side area is smaller than in the hot side area.