Siemens Energy Global Gmbh & Co. Kg

Siemens Aktiengesellschaft

Francis Ladru

Thorsten Schulz

Eckart Schumann

Arturo Flores Renteria

Britta Stöhr

Adrian Wollnik

Mario Felkel

Heiko Gruner

An excellent abrasive blade tip is provided by a two-layer coating system consisting of a brazing solder coating and an NiCoCrAlY coating containing cBN (cubic Boron Nitride).

Two-layer abrasive coating for rotor-blade tips, method, component, and turbine assembly

The invention relates to a ceramic sealing system between a rotor blade () and a housing (I). A small porous zirconium oxide layer (II) on a turbine rotor blade, which zirconium oxide layer faces a ceramic layer system (&#x2033;) of higher porosity, achieves durable sealing systems. The housing (I&#x2033;) has a metal substrate (), a metal adhesion-promoting layer (), and a thick, outer, ceramic layer (&#x2033;) based on zirconium oxide, in particular having a porosity 2&#x2265;14%.

Sealing system for a rotor blade and housing

A plasma spray nozzle is provided. Owing to their high degree of wear, previous plasma spray nozzles were not suitable for the coating of components for which long coating times were necessary. The coating times may be reduced considerably by the triple injection of powder into the inner channel through the plasma spray nozzle.

Plasma spray nozzle with internal injection

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Berlin, Germany

Francis Ladru