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Paterson, David
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Publications (7/7 displayed)
- 2022Corrosion mechanism of SS316L exposed to NaCl/Na2CO3 molten salt in air and argon environmentscitations
- 2016Investigations of metal-rich black shales of South China and the Nick prospect
- 2013A corrosion map of Abu Dhabicitations
- 2012High definition 2D and 3D X-ray fluorescence imaging in real-time: Maia detector system quantitative imaging methods
- 2011Distribution of Metals in the Termite Tumulitermes tumuli (Froggatt): Two Types of Malpighian Tubule Concretion Host Zn and Ca Mutually Exclusivelycitations
- 2010High definition trace element imaging of natural material using the new Maia X-ray detector array and processor
- 2010The Maia X-ray detector array at the Australian Synchrotron: High definition SXRF trace element imaging
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article
Corrosion mechanism of SS316L exposed to NaCl/Na2CO3 molten salt in air and argon environments
Abstract
Molten salts are potential energy storage media for solar thermal power, but can be highly corrosive. To investigate molten salt corrosion mechanisms, the oxidation state and structure of SS316L exposed to salt in air and argon environments was investigated using SEM and XANES techniques. It was determined that iron formed mixed Fe<sup>2+</sup> and Fe<sup>3+</sup> states in both environments, with lower oxidation states deeper into the corrosion. Cr<sup>2+</sup> was the primary oxidation state present in the scale for chromium. Reduced salt basicity with lower oxygen concentration favoured the lower oxidation state, whilst Cr<sup>3+</sup> ions were dissolved by the salt.