HIGH TEMPERATURE THERMAL BARRIER COATING

• Main Authors: WITZ GREGOIRE ETIENNE, BHATTACHARYA ANUP KUMAR, BOSSMANN HANS PETER, SHKLOVER VALERY
• Format: Patent
• Language: English; Korean
• Published: 04.10.2016
• Subjects: ARTIFICIAL STONE; BLASTING; CEMENTS; CERAMICS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DIFFUSION TREATMENT OF METALLIC MATERIAL; ENGINE PLANTS IN GENERAL; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; LIME, MAGNESIA; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; REFRACTORIES; SLAG; STEAM ENGINES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF NATURAL STONE; WEAPONS

특히, 가스 터빈과 같은, 서멀 기계의 열적 부하 구성요소들(10,10')의 보호를 위하여 안정화 Zr0조성물로 구성되는 고온 열 차단벽 코팅부(13)가 개시되어 있다. 상기 열 차단벽 코팅부(13)는 적어도 15 몰% YTa0로 안정되고, 상기 Zr0은 적어도 부분적으로 10 몰% HfO에 의해서 대체되고 상기 조성물은 다음 공식에 따라 설정되고, (YTa0)(ZrHf0), x는 0.1 내지 0.5이고, v는 -0.1 내지 0.2이고 z은 0.15 내지 0.25이다. A high temperature thermal barrier coating which consists of a stabilized ZrO2 composition for the protection of thermally loaded components (10, 10′) of a thermal machine, especially a gas turbine, is disclosed. The thermal barrier coating is stabilized with at least 15 mol % Y1+v Ta1−vO4−v, the ZrO2 is partially substituted by at least 10 mol % HfO2 and the composition is established according to the formula (Y1+vTa1−vO4−v)z(Zr1−xHfxO2)1−z, with x ranging from 0.1 to 0.5, v ranging from −0.1 to 0.2 and z ranging from 0.15 to 0.25.