Influence of Gd content on the room temperature mechanical properties of Gd-doped ceria

Roman Korobko, Chien Ting Chen, Sangtae Kim, Sidney R. Cohen, Ellen Wachtel, Nimrod Yavo, Igor Lubomirsky

Research output: Contribution to journalArticlepeer-review


High-density ceramics of ceria doped with 0, 3, 5, 10, 15 and 20 mol.% Gd and with grain sizes exceeding 1.5 μm were investigated by nanoindentation. The deduced elastic moduli are independent of Gd content and remain close to the value reported for bulk ceramics (210 ± 5% GPa). All ceramics exhibit transient creep with displacement proportional to the 1/3 power of the time. For 0.05 < x < 0.2, the derived creep magnitude parameter decreases linearly with increasing Gd content. These results strongly suggest that defect rearrangement influences the measurements.

Original languageEnglish
Pages (from-to)155-158
Number of pages4
JournalScripta Materialia
Issue number3-4
StatePublished - Feb 2012
Externally publishedYes

Bibliographical note

Funding Information:
I.L. and S.K. wish to thank the US–Israel Binational Science Foundation for funding this research. The research is also made possible in part by the generosity of the Harold Perlman Family. We also acknowledge support of the G.M.J. Schmidt Minerva Center for Supramolecular Architectures.


  • Creep rate
  • Elastic modulus
  • Gd-doped ceria
  • Nanoindentation


Dive into the research topics of 'Influence of Gd content on the room temperature mechanical properties of Gd-doped ceria'. Together they form a unique fingerprint.

Cite this