Layer system having a two-ply metal layer

US9435222B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Georg Bostanjoglo · Berlin, DE
• Axel Kaiser · Neuss, DE
• Werner Stamm · Mülheim an der Ruhr, DE
• Jan Steinbach · Berlin, DE
• Dimitrios Thomaidis · Berlin, DE

Key dates

• Filing date: Jul 8, 2011
• Grant date: Sep 6, 2016
• Expiry date: Jul 8, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12944
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Known protective layers having high Cr content and additional silicon form brittle phases, which additionally become brittle under the effect of carbon during use. The protective layer according to the invention comprises a two-part metal layer, which contains tantalum on the outside.