THERMAL BARRIER FOR TURBINE BLADES, HAVING A COLUMNAR STRUCTURE WITH SPACED-APART COLUMNS

摘要

A process for depositing a ceramic layer on a metal substrate for producing a thermal barrier, the process including depositing the ceramic in a columnar structure. The deposition is carried out through a grid pierced with holes, which is positioned parallel to a surface of the substrate so as to produce ceramic columns separated from one another by a space. The process can further include a subsequent depositing of an isotropic ceramic layer in the spaces.