Mechanical properties of BaCe0.65Zr0.2Y0.15O3-δ – Ce0.85Gd0.15O2-δ dual-phase proton-conducting material with emphasis on micro-pillar splitting

Wenyu Zhou*, Jürgen Malzbender, Fanlin Zeng, Wendelin Deibert, Louis Winnubst, Arian Nijmeijer, Olivier Guillon, Ruth Schwaiger, Wilhelm Albert Meulenberg

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


BaCe0.65Zr0.2Y0.15O3-δ – Ce0.85Gd0.15O2-δ (BCZ20Y15-GDC15) dual-phase material revealed potential for H2 production technologies due to its exceptional H2 permeation and chemical resistance. In this article, mechanical properties of BCZ20Y15-GDC15 dual-phase material were investigated to evaluate the mechanical behavior and develop strategies to warrant structural stability. Elastic modulus, hardness and fracture toughness values were studied using different indentation-based methods. The fracture experiments at different length-scales both revealed that the introduction of GDC15 makes the material tougher, facilitating the further design of robust and reliable components.

Original languageEnglish
Pages (from-to)3948-3956
Number of pages9
JournalJournal of the European Ceramic Society
Issue number9
Early online date15 Mar 2022
Publication statusPublished - Aug 2022


  • Dual-phase
  • Fracture toughness
  • Indentation
  • Mechanical properties
  • Micro-pillar splitting
  • Proton conductor
  • n/a OA procedure

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