2019
DOI: 10.1016/j.jnucmat.2019.07.023
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The electrochemical deconsolidation mechanism of graphite matrix in HTGR spherical fuel elements

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Cited by 11 publications
(2 citation statements)
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“…The crucible or a basket containing the PyC or SC material and immersed in the salts can be anodized by a power supply, with a cathode inserted into the molten salt electrolyte from above. This would allow for the electrolytic deconsolidation of the PyC by intercalation of the anions, which has been proposed as the mechanism of fracture in aqueous media [22,23]. The breaching of PyC and SiC by electrochemically formed lithium metal is proposed in section 4.3.…”
Section: Laboratory-scale Pyroprocessing Unit Operationsmentioning
confidence: 99%
“…The crucible or a basket containing the PyC or SC material and immersed in the salts can be anodized by a power supply, with a cathode inserted into the molten salt electrolyte from above. This would allow for the electrolytic deconsolidation of the PyC by intercalation of the anions, which has been proposed as the mechanism of fracture in aqueous media [22,23]. The breaching of PyC and SiC by electrochemically formed lithium metal is proposed in section 4.3.…”
Section: Laboratory-scale Pyroprocessing Unit Operationsmentioning
confidence: 99%
“…To achieve this, deconsolidation rates under controlled conditions for a variety of electrolytes with multiple current densities need to be measured and cataloged in the short term. The mechanism of deconsolidation is believed to proceed through a combination of partial oxidation of the carbon along grain boundaries and pressure created along the grain boundaries by intercalation of the anions present in the electrolyte (Lee et al 2017;Zhang et al 2019). A more detailed understanding of the mechanism will allow design of improved electrochemical cells and conditions.…”
Section: Core Ideamentioning
confidence: 99%