Scattered and linked microcracks in solid oxide fuel cell electrolyte

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Frantsevich Institute for Problems of Materials Science

Abstract

Scattered and linked microcracks in the electrolyte layer have been analysed in detail in anode supported planar solid oxide fuel cells. The empirical model established allowed critical characteristics of scattered and localised microcracking to be determined using electrolyte microstructural parameters. The model was verified with experimental data obtained for electron beam deposited scandia-stabilised zirconia electrolytes. Suitable annealing and deposition temperatures during fuel cell fabrication could be predicted from the critical temperature difference below which microcracking does not occur.

Details

Original languageEnglish
Article number227701
Number of pages11
JournalJournal of Power Sources
Volume450
Early online date29 Jan 2020
Publication statusPublished - 29 Feb 2020

Keywords

  • Scandia-stabilised zirconia, Solid oxide fuel cell, Electrolyte, Thermal expansion, Microcracking, Residual stress