Objectif 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. Champ scientifique engineering and technologymaterials engineeringcoating and filmsengineering and technologymechanical engineeringtribology Programme(s) FP4-BRITE/EURAM 3 - Specific research and technological development programme in the field of industrial and materials technologies, 1994-1998 Thème(s) 0301 - Aeronautics Appel à propositions Data not available Régime de financement CSC - Cost-sharing contracts Coordinateur TURBOMECA SA Contribution de l’UE Aucune donnée Adresse 64320 Bordes France Voir sur la carte Coût total Aucune donnée Participants (7) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire BMW Rolls-Royce GmbH - Aeroengines Allemagne Contribution de l’UE Aucune donnée Adresse 60-70,Hohemarkstraße 61402 Oberursel Voir sur la carte Coût total Aucune donnée Bundesanstalt für Materialforschung und Materialprüfung Allemagne Contribution de l’UE Aucune donnée Adresse 44-46,Unter den Eichen 12203 Berlin Voir sur la carte Coût total Aucune donnée Ecole Centrale de Lyon France Contribution de l’UE Aucune donnée Adresse Avenue Guy de Collongues 36 69131 Ecully Voir sur la carte Coût total Aucune donnée MTU Motoren- und Turbinen-Union München GmbH Allemagne Contribution de l’UE Aucune donnée Adresse 655,Dachauer Straße 80995 München Voir sur la carte Coût total Aucune donnée Poeton Coating Technology Ltd. Royaume-Uni Contribution de l’UE Aucune donnée Adresse Brokenford Lane SO49 9DY Southampton Voir sur la carte Coût total Aucune donnée Sulzer Innotec AG Suisse Contribution de l’UE Aucune donnée Adresse Hegifeldstrasse 16 8404 WINTERTHUR Voir sur la carte Coût total Aucune donnée Techspace Aero SA Belgique Contribution de l’UE Aucune donnée Adresse 121,Route de Liers 4041 Milmort Voir sur la carte Coût total Aucune donnée