Mechanical properties of Ba1-xKxCe0.6Zr0.2Y0.2O3-δ oxides by nanoindentation

Ping Feng Yang, Dao Long Chen, Sheng Rui Jian, Sheng Wei Lee, Chung Jen Tseng

Research output: Contribution to journalConference articlepeer-review

8 Scopus citations

Abstract

The microstructural and nanomechanical characteristics Ba1-xKxCe0.6Zr0.2Y0.2O3-δ (K-doped BCZY, 0.0≤x≤0.15) oxides affected by the various K doping concentrations are investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and nanoindentation techniques in this study. All BKCZY samples are produced by a combination of the citrateethylenediaminetetraacetic acid (EDTA) complexing sol-gel process and the composition-exchange method, formed by uniaxial pressure and sintered at 1600 °C for 4 h. XRD results indicated that the BKCZY samples are pre-dominantly the perovskite-type cubic structure. The hardness and Young's modulus of BKCZY samples are measured by a Berkovich nanoindenter operated with the continuous contact stiffness measurements (CSM) mode. The results indicated that the hardness and Young's modulus of BKCZY sample decreased with increasing the K doping concentrations.

Original languageEnglish
Pages (from-to)599-605
Number of pages7
JournalProcedia Engineering
Volume79
DOIs
StatePublished - 2014
Event37th National Conference on Theoretical and Applied Mechanics, NCTAM 2013, Conjoined with the 1st International Conference on Mechanics, ICM 2013 - Hsinchu, Taiwan
Duration: 8 Nov 20139 Nov 2013

Keywords

  • BaKCeZrYO electrolytes
  • Hardness
  • Nanoindentation
  • SEM
  • XRD

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