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A simple method for a protective coating on stainless steel against molten aluminum alloy comprising polymer-derived ceramics, oxides and refractory ceramics

Abstract : A new coating based on polymer-derived ceramics (PDC), oxides and refractory ceramic with a thickness of around 50 µm has been developed to improve the resistance corrosion of stainless steel substrate against molten aluminum alloy in a thermal energy storage (TES) system designed to run at high temperature (up to 600 °C). These coatings implemented by straightforward methods, like tape casting or paintbrush, were coated on planar and cylindrical stainless-steel substrates, pyrolyzed at 700 °C before being plunged for 600 and 1200 h in molten AlSi12 at 700 °C. The stainless-steel substrate appears healthy without intermetallic compounds, characteristic of molten aluminum alloy corrosion. The protective coating against AlSi12 corrosion shows excellent performance and appears interesting for TES applications.
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https://hal-cea.archives-ouvertes.fr/cea-03325359
Contributor : Sébastien Quenard <>
Submitted on : Tuesday, August 24, 2021 - 4:29:45 PM
Last modification on : Thursday, August 26, 2021 - 3:21:07 AM

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Sébastien Quenard, Marilyne Roumanie. A simple method for a protective coating on stainless steel against molten aluminum alloy comprising polymer-derived ceramics, oxides and refractory ceramics. Materials, MDPI, 2021, 14 (6), pp.1519. ⟨10.3390/ma14061519⟩. ⟨cea-03325359⟩

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