English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Ni coarsening in Ni-yttria stabilized zirconia (YSZ) solid oxide fuel cellanodes is considered a major reason for anode degradation. We present apredictive, quantative modeling framework based on the phase-field approach tosystematically examine coarsening kinetics in such anodes. The initialstructures for simulations are experimentally acquired functional layers ofanodes. Sample size effects and error analysis of contact angles are examined.Three phase boundary (TPB) lengths and Ni surface areas are quantativelyidentified on the basis of the active, dead-end, and isolated phase clustersthroughout coarsening. Tortuosity evolution of the pores is also investigated.We find that phase clusters with larger characteristic length evolve slowerthan those with smaller length scales. As a result, coarsening has smallpositive effects on transport, and impacts less on the active Ni surface areathan the total counter part. TPBs, however, are found to be sensitive to localmorphological features and are only indirectly correlated to the evolutionkinetics of the Ni phase.

Ni coarsening in the three-phase solid oxide fuel cell anode - a phase-field simulation study