Coating designs for oxidation control of Mo-Si-B alloys

Abstract

Oxidation of a three phase (Mo + Mo5SiB2 + Mo3Si) Mo-Si-B alloy in air at 1000 and 1200 °C yields borosilicate and MoO2 product layers. The formation of MoO2 indicates that the borosilicate layer restricts the oxygen activity. A coating strategy based upon a kinetic biasing to limit the oxygen flux and enhance oxidation resistance is presented.

Document Type

Article

DOI

https://doi.org/10.1016/S1359-6462(02)00070-2

Keywords

Coating, Intermetallic, Kinetics, Oxidation, Scanning electron microscopy (SEM)

Publication Date

6-7-2002

Journal Title

Scripta Materialia

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