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Oxidation Resistant Coatings for Ultrahigh Temperature Refractory Mo‐Base Alloys
Author(s) -
Perepezko John H.,
Sakidja Ridwan
Publication year - 2009
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200900118
Subject(s) - materials science , refractory metals , coating , metallurgy , atmospheric temperature range , refractory (planetary science) , base (topology) , diffusion , high temperature corrosion , deposition (geology) , diffusion barrier , composite material , corrosion , layer (electronics) , mathematical analysis , paleontology , physics , mathematics , sediment , biology , meteorology , thermodynamics
The use of Mo base alloys is limited by severe oxidation above about 650 °C. While MoSi 2 coatings offer protection at high temperature, they are ineffective at low temperature. An integrated coating design has been developed based upon (B + Si) co‐deposition and an in‐situ diffusion barrier that offers robust, long term oxidation protection and self‐healing for Mo alloys over a wide temperature range to over 1600 °C.