| 摘要 |
PROBLEM TO BE SOLVED: To provide a protective layer for a barrier coating of a silicon containing substrate and a method for manufacturing it. SOLUTION: The article (10) comprises a silicon containing substrate (30), an outer barrier layer (66), a steam resistant barrier coating (42) which covers the substrate (30) and a corrosion resistant metal silicate protective layer (74) which covers the outer barrier layer (66) and is adjacent to the outer barrier layer (66), the outer barrier layer (66) comprising substantially an alkali earth metal silicate/alumino silicate. A method is also provided to form the corrosion resistant metal silicate protective layer (74). COPYRIGHT: (C)2007,JPO&INPIT
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