Mechanical relaxation measurements in the protonic conductors SrCeO3 and SrZrO3

  • Zimmermann L
  • Bohn H
  • Schilling W
 et al. 
  • 2


    Mendeley users who have this article in their library.
  • 20


    Citations of this article.


Several mechanical relaxation peaks have been observed in the ceramic proton conductors SrCe1 - xYbxO3 - αand SrZr1 - xYbxO3 - α(x = 0.025, 0.05, 0.1). The spectra consist of a superposition of peaks which can be attributed to defect clusters containing both protons and dopant atoms. These peaks are positioned near 0 °C for a typical measuring frequency of 300 Hz. For the cerates another relaxation contribution shows up near 100 °C. This can be related to oxygen vacancies near a dopant atom. Average activation energies of 0.5 eV for the proton related and 0.8 eV for the oxygen vacancy related local diffusion jumps are derived. © 1995.

Author-supplied keywords

  • Mechanical relaxation
  • Perovskites
  • Protonic conductors
  • SrCeO3
  • SrZrO3

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • L. Zimmermann

  • H. G. Bohn

  • W. Schilling

  • E. Syskakis

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free