Graded PVD Mo-Si interlayer between Si coating and Mo-Si-B alloys: Investigation of oxidation behaviour
Source abstract
Abstract
Abstract The insufficient oxidation resistance of Mo-Si-B alloys at high temperatures inevitably requires a protective coating. A dual layer system combining a graded Mo-Si interlayer with a Si oxidation protective top layer has been applied by magnetron sputtering on a Mo-9Si-8B alloy. The interlayer architecture was designed to maximize the adhesion between top layer and substrate by creating thermodynamic compatibility between alloy and Si. Isothermal oxidation tests at 800 and 1200 °C in air up to 300 h were performed focusing on chemical reactions between top layer, interlayer and substrate as well as the evolution of the thermally grown SiO2.
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Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · Metal and Thin Film Mechanics · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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