Insulating material capable of withstanding cyclically varying high temperatures

摘要

A heat insulation material based on ceramic material includes a top layer containing BaZrO₃ and Y₂O₃ doped ZrO₂. A heat insulation material preferably consists of at least one adhesion promotion layer, at least one intermediate layer arranged thereon and a top layer arranged thereon, with the adhesion promotion layer consisting of MeCrAlY, where Me is nickel and/or cobalt, the intermediate layer consists of Y₂O₃ doped ZrO₂ and the top layer consists of 15 to 25% by weight BaZrO₃ and 75 to 85% by weight Y₂O₃ doped ZrO₂. A method of coating a substrate with a heat insulation material includes the step of applying an aforesaid top layer to an optionally coated substrate by a thermal spray method or an electron beam method, in particular an EB-PVD method.