Wärmedämmschicht für Gasturbinenmotorkomponenten

Details

Veröffentlichungs-Nr.

EP4722184

Anmeldetag

9. September 2025

Veröffentlichung

8. April 2026

Rechtsraum

EP

IPC

(NAYAK MOHANDAS et al.)

Abstract

A thermal barrier coating (110) for a substrate (102) that has a major surface (104). The thermal barrier coating (110) comprises: a bond coat layer (112) disposed on the major surface (104) of the substrate (102); a thermally grown oxide (TGO) layer (114) disposed on the bond coat layer (112); and a top coat layer (116) disposed on the TGO layer (114). The top coat layer (116) comprises a ceramic top coat material (120) that comprises: a matrix phase (122) comprising at least one compound of formula ABO<4>, AB<3>O<7> or AB<3>O<9>, where A is a rare-earth element, B is selected from the group consisting of niobium and tantalum, and O is oxygen; and an inclusion phase (124) that is dispersed in the matrix phase and comprising one or more of alumina and a compound of formula A<3>AlO<12>, AAlO<3> or A<4>Al<2>O<9>, where A is a rare-earth element, Al is aluminium, and O is oxygen.

Anmelder

Firma

Rolls-Royce plc

Land

🇬🇧 Großbritannien