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Siemens Aktiengesellschaft

Robert Boschgmbh

Axel Endriss

Wolfram Beele

Ulrich Bast

Peter Greil

Karl Kempter

Fritz Aldinger

Thomas Haubold

Michael Hoffmann

Beate Heimberg

Chu-Wan Hong

Hans J Seifert

The invention relates to a product ( ), particularly a gas turbine blade that can be exposed to a hot aggressive gas ( ). The product ( ) has a metallic basic body ( ), which is provided with a thermal barrier coating ( ) having a spinel of the composition AB O .

Product, especially a gas turbine component, with a ceramic heat insulating layer

An article that is particularly well suited for use as a gas turbine engine component has a metallic substrate and a ceramic thermal barrier layer including a mixed metal oxide system comprising a compound selected from the group consisting of (i) a lanthanum aluminate and (ii) a calcium zirconate, the calcium in which is partially replaced by at least one calcium-substitute element, such as strontium (Sr) or barium (Ba). In addition, the lanthanum in the lanthanum aluminate can be partially replaced by a lanthanum-substitute element from the lanthanide group, particularly gadolinium (Gd). A process for producing such an article comprises providing a pre-reacted mixed metal oxide system as described above and applying it to the substrate by plasma spraying or an evaporation coating process.

Process for producing a ceramic thermal barrier layer for gas turbine engine component

Ceramic thermal barrier layer for gas turbine engine component

Growing community of inventors

Stuttgart, Germany

Axel Endriss