Cover coating resistant to molten calcium magnesium aluminosilicate: Fid-Bau Portal

Cover coating resistant to molten calcium magnesium aluminosilicate

KOHLHAUSER BERNHARD / SCHOCH HUBERT / WIEDRIG BENO / RAMM JUERGEN

The present invention relates to a CMAS-resistant overcoating (240) comprising at least one CMAS-resistant layer, where the overcoating (240) is i. Arranged on a surface (11a) of a substrate (10a) comprising or consisting of a CMAS-resistant material, ii. Comprising a metal oxide matrix, and iii. Having an at least partially vertical columnar structure. Furthermore, at least one non-oxidizing metal component selected from the group consisting of aluminum, chromium and metal components comprising or consisting of aluminum and chromium is embedded in the metal oxide matrix. In addition, the invention relates to a substrate (10a) having a CMAS resistant overcoating (240) discussed on a surface (231) of a material susceptible to CMAS corrosion. The invention also relates to a CAE method of forming such a CMAS resistant cover coating (240) on a surface (231) of a material susceptible to CMAS corrosion.

本发明涉及一种包括至少一个耐CMAS层的耐CMAS覆盖涂层(240)，其中覆盖涂层(240)i.布置在基材(10a)的表面(11a)上，所述基材(10a)包含易受CMAS腐蚀的材料或由其组成，ii.包括金属氧化物基质，并且iii.具有至少部分垂直柱状结构。此外，在金属氧化物基质中包埋至少一种选自铝、铬以及包含铝和铬或由其组成的金属组分的非氧化金属组分。另外，本发明还涉及在易受CMAS腐蚀的材料的表面(231)上具有所讨论的耐CMAS覆盖涂层(240)的基材(10a)。本发明也涉及在易受CMAS腐蚀的材料的表面(231)上形成这样的耐CMAS覆盖涂层(240)的CAE方法。

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