COATING STRUCTURE, TURBINE MEMBER, GAS TURBINE, AND METHOD OF PRODUCING COATING STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a coating structure having erosion resistance.SOLUTION: A coating structure comprises a first protection film comprising at least one of an environmentally resistant coating film or a heat shielding coating film provided on the surface of base material comprising ceramic-based composite material, and a second protection film comprising an aluminum oxide film provided on the first protection film.