Journal of Materials Science

, Volume 46, Issue 17, pp 5709–5714 | Cite as

Calcia-doped yttria-stabilized zirconia for thermal barrier coatings: synthesis and characterization

  • Anup K. BhattacharyaEmail author
  • Patrick Reinhard
  • Walter Steurer
  • Valery Shklover


Doping with other oxides has been a stabilization method of ZrO2 for thermal barrier coating applications. Such a stabilized system is 7–8 mol% YO1.5-doped zirconia (7YSZ), which has been in use for around 20 years. In this study, calcia (CaO) and yttria (Y2O3) have been used for doping ZrO2 to produce a stable single-phase cubic calcia-doped yttria-stabilized zirconia (CaYSZ). This has been synthesized using wet chemical synthesis as well as by solid-state synthesis. Unlike partially stabilized zirconia where 5 mol% CaO is doped into ZrO2, CaYSZ has been found to be stable up to 1600 °C. Detailed CaYSZ synthesis steps and phase characterization are presented. Wet chemical synthesis resulted in a stable single-phase CaYSZ just after 4 h treatment at 1400 °C, whereas a 36 h annealing at 1600 °C is required for CaYSZ synthesis during solid-state processing. The CaYSZ has been found stable even for 600 h at 1250 °C. Coefficient of thermal expansion and sintering temperature of CaYSZ was found to be 11 × 10−6 K−1 and 1220 °C, respectively, which are comparable to 7YSZ. An increase in sintering rate with increasing dopant concentration has also been observed.


Y2O3 Thermal Barrier Coating Monoclinic Phase Thermal Barrier Coating Partially Stabilize Zirconia 



Authors would like to thank Dr. O. Fabrichnaya for important suggestions. Authors would also like to thank Dr. G. Witz for useful suggestions and discussions. Authors are indebted to Innovation Promotion Agency (CTI) of Swiss Federal Office for Professional Education and Technology (Project 8974.1 PFIW-IW) for financial support.


  1. 1.
    Schulz U (2000) J Am Ceram Soc 83(4):904CrossRefGoogle Scholar
  2. 2.
    Jones RL (1997) J Therm Spray Technol 6(1):77CrossRefGoogle Scholar
  3. 3.
    Clarke DR, Levi CG (2003) Annu Rev Mater Res 33:383CrossRefGoogle Scholar
  4. 4.
    Huang X, Zakurdaev A, Wang D (2008) J Mater Sci 43:2631. doi: CrossRefGoogle Scholar
  5. 5.
    Brandon JR, Taylor R (1991) Surf Coat Technol 46:75CrossRefGoogle Scholar
  6. 6.
    Nicholls JR, Lawson KJ (2002) Surf Coat Technol 151–152:383CrossRefGoogle Scholar
  7. 7.
    Jahannathan KP, Tiku SK, Ray HS, Ghosh A, Subbarao EC (1980) Solid electrolytes and their applications. Plenum Press, New York, p 201CrossRefGoogle Scholar
  8. 8.
    Garvie RC, Nicholson PS (1972) J Am Ceram Soc 55(6):303CrossRefGoogle Scholar
  9. 9.
    Green DJ, Maki DR, Nicholson PS (1974) J Am Ceram Soc 57(3):136CrossRefGoogle Scholar
  10. 10.
    Hannink RHJ, Kelly PM, Muddle BC (2000) J Am Ceram Soc 83(3):461CrossRefGoogle Scholar
  11. 11.
    Kraemer S, Faulhaber S, Chambers M, Clarke DR, Levi CG, Hutchinson JW, Evans AG (2008) Mater Sci Eng A 490:26CrossRefGoogle Scholar
  12. 12.
    Toraya H, Yoshimura M, Somiya S (1984) J Am Ceram Soc 67:C183Google Scholar
  13. 13.
    Shannon RD (1976) Acta Cryst A32:751CrossRefGoogle Scholar
  14. 14.
    Andriveskaya ER, Kir’yakova IE, Lopato LM (1991) Inorg Mater 27(10):1839Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Anup K. Bhattacharya
    • 1
    Email author
  • Patrick Reinhard
    • 1
  • Walter Steurer
    • 1
  • Valery Shklover
    • 1
  1. 1.Department of MaterialsETH ZurichZurichSwitzerland

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