PROCESS FOR PRODUCING ABRADABLE METAL/CERAMIC SEAL STRUCTURES, PARTICULARLY FOR APPLICATION ON TURBINE ENGINE SURFACES, AND SEAL STRUCTURES PRODUCED ACCORDING TO THE PROCESS

摘要

A metal/ceramic abradable seal structure (10,18) of the type used in aircraft turbine engines is improved by using a metal substrate (10) which is able to deform during cooling from the brazing temperature and is then rendered rigid after the cool down by applying reinforcements (20,22) to the substrate (10). By this method internal stress in the material is relieved which would otherwise occur, if an initially rigid substrate was used.