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Time Dependent Degradation in Sodium Bet

Hitchcock, D.C., Jonghe, L.C. De

2026ensodium beta aluminasolid electrolytesdegradationcrack propagationsodium sulfur cellsmicrostructure

Abstract

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This study investigates the time-dependent degradation mechanisms observed in sodium-beta alumina solid electrolytes, particularly focusing on the slow crack propagation associated with Mode I failure. The objective is to understand the conditions under which cracks develop and propagate in these materials, particularly in the context of sodium/sulfur cell applications. Employing experimental methods that include current density testing on solid electrolyte samples, we identify a critical current density threshold below which slow crack growth is inhibited. Results indicate that degradation is intricately linked to operational current densities, and a specifically defined threshold plays a crucial role in the stability of the electrolytes during use. These findings contribute to the understanding of performance limitations in sodium-beta alumina solid electrolytes and provide insights for improving their durability in electrochemical applications.

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Cite This Work

@article{d86b39eb-0e18-40e4-a8d0-4820d3deb818,
  title={Time Dependent Degradation in Sodium Bet},
  author={Hitchcock and D.C. and Jonghe and L.C. De},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - Time Dependent Degradation in Sodium Bet
AU  - Hitchcock
AU  - D.C.
AU  - Jonghe
AU  - L.C. De
PY  - 2026
LA  - en
ER  -

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