Formation and oxidation behavior of Mo-Si-B composite coatings with B-rich interlayer prepared by slurry sintering method
Source abstract
Abstract
The Mo-Si-B composite coatings with a B-rich interlayer were prepared on Nb-Si based ultrahigh temperature alloys by slurry sintering method, which exhibited a three-layer structure. The effect of B content (0, 5, 10 and 15 at%) on the microstructure and oxidation resistance of the coatings was investigated. The 10B coating had the lowest mass gain (5.9 mg/cm 2 ) after oxidation at 1250 °C for 100 h. Its good oxidation resistance is attributed to the formation of oxide scales with crack-less, high fluidity and low oxygen permeability, which effectively prevents the inward diffusion of oxygen and prompts the transition from internal oxidation to external oxidation.
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Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · Advanced materials and composites · High-Temperature Coating Behaviors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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