Obiettivo Objectives and content Gas turbine efficiency is significantly influenced by the pressure losses caused by the inevitable gap between the rotating turbine blades and the stator parts. Because contact between rotor and stator cannot be completely avoided with a small gap, systems are designed to allow for some rubbing. Honeycombs or abradable MCrAlY stator coatings are normally used to minimize the wear of the rotor blades when rubbing occurs. But, more efficient solutions must be developed on modern engines, because both suffer temperature limitation and standard MCrAlY have usually poor abradability. For higher temperature and closer control of the gap, a thick thermal-barrier coating must be applied on the stator, but presently with no rub-tolerance. To increase the abradability of the stator coating, its composition and structure can be modified, but such changes must be strictly limited with respect to the loss of erosion resistance. The solution can then lie in the hardening of the rotating blade tip to permit the use of harder ceramic or metallic coatings on the stator with greater resistance to erosion. These systems typically consist, on the blade tip, of hard particles embedded in a softer metallic matrix. In the present programme, it is therefore intended: - to assess the present European solutions, standard or in development, for outer air seals and blade tips. - to develop coated grits or new grits for the hardening of the blade tips, as well as to improve the matrix and the stator coating for long life systems.- to optimize the most promising of these systems, that will be tested on development rigs and on engine. The consortium includes several engine manufacturers, which are the potential users of the innovating solutions to be developed, companies having a large experience in the field of abradables and tip coatings and non industrial partners involved in tribology and materials science. Campo scientifico engineering and technologymaterials engineeringcoating and filmsengineering and technologymechanical engineeringtribology Programma(i) FP4-BRITE/EURAM 3 - Specific research and technological development programme in the field of industrial and materials technologies, 1994-1998 Argomento(i) 0301 - Aeronautics Invito a presentare proposte Data not available Meccanismo di finanziamento CSC - Cost-sharing contracts Coordinatore TURBOMECA SA Contributo UE Nessun dato Indirizzo 64320 Bordes Francia Mostra sulla mappa Costo totale Nessun dato Partecipanti (7) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto BMW Rolls-Royce GmbH - Aeroengines Germania Contributo UE Nessun dato Indirizzo 60-70,Hohemarkstraße 61402 Oberursel Mostra sulla mappa Costo totale Nessun dato Bundesanstalt für Materialforschung und Materialprüfung Germania Contributo UE Nessun dato Indirizzo 44-46,Unter den Eichen 12203 Berlin Mostra sulla mappa Costo totale Nessun dato Ecole Centrale de Lyon Francia Contributo UE Nessun dato Indirizzo Avenue Guy de Collongues 36 69131 Ecully Mostra sulla mappa Costo totale Nessun dato MTU Motoren- und Turbinen-Union München GmbH Germania Contributo UE Nessun dato Indirizzo 655,Dachauer Straße 80995 München Mostra sulla mappa Costo totale Nessun dato Poeton Coating Technology Ltd. Regno Unito Contributo UE Nessun dato Indirizzo Brokenford Lane SO49 9DY Southampton Mostra sulla mappa Costo totale Nessun dato Sulzer Innotec AG Svizzera Contributo UE Nessun dato Indirizzo Hegifeldstrasse 16 8404 WINTERTHUR Mostra sulla mappa Costo totale Nessun dato Techspace Aero SA Belgio Contributo UE Nessun dato Indirizzo 121,Route de Liers 4041 Milmort Mostra sulla mappa Costo totale Nessun dato