Wisconsin Alumni Research Foundation

Ridwan Sakidja

John Harry Perepezko

Joon S Park

Joon Sang Park

Patrick Ritt

Alumina-containing coatings based on molybdenum (Mo), silicon (Si), and boron (B) ('MoSiB coatings') that form protective, oxidation-resistant scales on ceramic substrate at high temperatures are provided. The protective scales comprise an aluminoborosilicate glass, and may additionally contain molybdenum. Two-stage deposition methods for forming the coatings are also provided.

Mo&#x2014;Si&#x2014;B&#x2014;based coatings for ceramic base substrates

Methods for the low-temperature synthesis of an integrated, corrosion-resistant coating structure for metal substrates by means of multi-component pack cementation are provided. The synthesis of the integrated coating structures at low temperatures can avoid or minimize degradation of the mechanical properties of the substrates. The integrated coating structures can increase the lifetime of high temperature steels under severe steam environments and, therefore, provide a technological enabler for the high-temperature operation of steam power generation plants.

Low-temperature synthesis of integrated coatings for corrosion resistance

Methods for producing multilayered, oxidation-resistant structures on substrates are provided. The methods comprise depositing silicon dioxide on a substrate comprising molybdenum and boron and annealing the silicon dioxide at a temperature and for a time sufficient to form a coating comprising a borosilicate scale on the substrate.

Methods for producing multilayered, oxidation-resistant structures on substrates

The invention provides oxidation resistant coatings for transition metal substrates and transition metal alloy substrates and method for producing the same. The coatings may be multilayered, multiphase coatings or gradient multiphase coatings. In some embodiments the transition metal alloys may be boron-containing molybdenum silicate-based binary and ternary alloys. The coatings are integrated into the substrates to provide durable coatings that stand up under extreme temperature conditions.

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Madison, WI, United States of America

Ridwan Sakidja