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Grain growth and sinterability in Er2O3-doped cubic zirconia (c-ZrO2)

  • Bulent Aktas , Suleyman Tekeli and Mustafa Kucuktuvek
Published/Copyright: February 7, 2014
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 105 Issue 2

Abstract

The effects of the addition of Er2O3 on the grain growth and sinterability of c-ZrO2 were investigated using 8 mol.% yttria-stabilized cubic zirconia (c-ZrO2) and various amounts of Er2O3. For these purposes, the content of 0–15 wt.% Er2O3 and c-ZrO2 powders were doped using a colloidal process. Undoped and Er2O3-doped c-ZrO2 specimens were annealed for grain growth at different temperatures and holding times. An increase in annealing temperature and holding time caused grain growth in all specimens. Activation energy of the undoped c-ZrO2 obtained was 358 kJ mol−1 and the activation energies of 1, 5, 10 and 15 wt.% Er2O3-doped specimens obtained were 388, 403, 432 and 476 kJ mol−1, respectively. While excessive grain coarsening in the undoped c-ZrO2 was observed, a lesser level of grain growth occurred in the Er2O3-doped specimens, due to the segregation of Er2O3 at the grain boundaries and the restriction in the grain boundaries mobility of c-ZrO2.

Keywords: Yttria-stabilized zirconia (c-ZrO2); Er2O3; Grain growth; Solid oxide fuel cell (SOFC); Sinterability
* Correspondence address, Assist. Prof. Bulent Aktas, Harran University, Osmanbey campus, Engineering Faculty, Department of Mechanical Engineering, 63300 Sanliurfa, Turkey, Tel.: +90414 3183000, Fax: +90414 3183799, E-mail:

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Received: 2013-04-02
Accepted: 2013-07-22
Published Online: 2014-02-07
Published in Print: 2014-02-10

© 2014, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Experimental determination of a representative texture and insight into the range of significant neighboring grain interactions via orientation and misorientation statistics
  5. Methods of segregation analysis applied to simulated multicomponent multiphase microstructures
  6. Nanoindentation responses of Si–Ge multilayers
  7. Microstructural and thermodynamic investigations on friction stir welded Mg/Al-joints
  8. Ingot metallurgy and microstructural characterization of Ti–Ta alloys
  9. Microstructural evolution of aluminium–copper alloys during the downward directional solidification process
  10. Indium ion cementation onto aluminum plates in hydrochloric acid solutions: a kinetic perspective
  11. Development of Sn–Cu–Sb alloys for making lead- and bismuth-free pewter
  12. The effect of Sn addition and sulfide ion concentration on the corrosion behavior of Cu-35Zn in NaCl solution
  13. Synthesis and characteristics of precipitation hardened Cu–Cr alloy and multiply hardened Cu–Cr–Al2O3 nanocomposite obtained using powder metallurgy techniques
  14. Effect of rhenium addition on the strengthening of chromium–alumina composite materials
  15. Grain growth and sinterability in Er2O3-doped cubic zirconia (c-ZrO2)
  16. Short Communications
  17. Properties of aluminium coatings produced using manual and robotized flame spraying processes
  18. DGM News
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https://doi.org/10.3139/146.110999
Keywords for this article
Yttria-stabilized zirconia (c-ZrO2); Er2O3; Grain growth; Solid oxide fuel cell (SOFC); Sinterability

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Experimental determination of a representative texture and insight into the range of significant neighboring grain interactions via orientation and misorientation statistics
  5. Methods of segregation analysis applied to simulated multicomponent multiphase microstructures
  6. Nanoindentation responses of Si–Ge multilayers
  7. Microstructural and thermodynamic investigations on friction stir welded Mg/Al-joints
  8. Ingot metallurgy and microstructural characterization of Ti–Ta alloys
  9. Microstructural evolution of aluminium–copper alloys during the downward directional solidification process
  10. Indium ion cementation onto aluminum plates in hydrochloric acid solutions: a kinetic perspective
  11. Development of Sn–Cu–Sb alloys for making lead- and bismuth-free pewter
  12. The effect of Sn addition and sulfide ion concentration on the corrosion behavior of Cu-35Zn in NaCl solution
  13. Synthesis and characteristics of precipitation hardened Cu–Cr alloy and multiply hardened Cu–Cr–Al2O3 nanocomposite obtained using powder metallurgy techniques
  14. Effect of rhenium addition on the strengthening of chromium–alumina composite materials
  15. Grain growth and sinterability in Er2O3-doped cubic zirconia (c-ZrO2)
  16. Short Communications
  17. Properties of aluminium coatings produced using manual and robotized flame spraying processes
  18. DGM News
  19. DGM News
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