Skip to main content Accessibility help
×
Home

High-temperature X-ray powder diffraction study of the tetragonal-cubic phase transition in nanocrystalline, compositionally homogeneous ZrO2–CeO2 solid solutions

  • L. M. Acuña (a1), R. O. Fuentes (a1), D. G. Lamas (a1), I. O. Fábregas (a1), N. E. Walsöe de Reca (a1) and A. F. Craievich (a2)...

Abstract

Crystal structure of compositionally homogeneous, nanocrystalline ZrO2–CeO2 solutions was investigated by X-ray powder diffraction as a function of temperature for compositions between 50 and 65 mol % CeO2. ZrO2-50 and 60 mol % CeO2 solid solutions, which exhibit the t-form of the tetragonal phase at room temperature, transform into the cubic phase in two steps: t-to-t followed by t-to-cubic. But the ZrO2-65 mol % CeO2, which exhibits the t-form, transforms directly to the cubic phase. The results suggest that t-to-t transition is of first order, but t-to-cubic seems to be of second order.

Copyright

References

Hide All
Di Monte, R. and Kašpar, J. (2005). “Nanostructurated CeO2-ZrO2 mixed oxides,” J. Mater. Chem.JMACEP 15, 633648. jtc, JMACEP
Ferreira, F.F., Granado, E., Carvalho, W. Jr., Kycia, S.W., Bruno, D., and Droppa, R. Jr. (2006). “X-ray power diffraction beamline at D10B of LNLS: application to Ba2FeReO6 double perovskite,” J. Synchrotron Radiat.JSYRES 13, 4653. jsy, JSYRES
Kašpar, J., Fornasiero, P., Balducci, G., Di Monte, R., Hickey, N., and Sergo, V. (2003). “Effect of ZrO2 content on textural and structural properties of CeO2-ZrO2 solid solutions made by citrate complexation route,” Inorg. Chim. ActaICHAA3 349, 217226. ica, ICHAA3
Lamas, D.G., Fuentes, R.O., Fábregas, I.O., Fernández de Rapp, M.E., Lascalea, G.E., Casanova, J.R., Walsöe de Reca, N.E., and Craievich, A.F. (2005). “Synchrotron X-ray diffraction study of the tetragonal-cubic phase boundary of nanocrystalline ZrO2-CeO2 synthesized by a gel-combustion process,” J. Appl. Crystallogr.JACGAR 38, 867873. acr, JACGAR
Lamas, D.G., Juárez, R.E., Lascalea, G.E., and Walsöe de Reca, N.E. (2001). “Synthesis of compositionally homogeneous, nanocrystalline ZrO2-35 mol% CeO2 powders by gel-combustion,” J. Mater. Sci. Lett.JMSLD5 20, 14471449. jml, JMSLD5
Lamas, D.G., Lascalea, G.E., Juárez, R.E., Djurado, E., Pérez, L., and Walsöe de Reca, N.E. (2003). “Metastable forms of the tetragonal phase in compositionally homogeneous, nanocrystalline zirconia-ceria powders synthesised by gel-combustion,” J. Mater. Chem.JMACEP 13, 904910. jtc, JMACEP
Lascalea, G.E., Lamas, D.G., Pérez, L., Cabanillas, E.D., and Walsöe de Reca, N.E. (2004). “Synthesis of ZrO2-15 mol% CeO2 nanopowders by a pH-controlled nitrate-glycine process,” Mater. Lett.MLETDJ 58, 24562460. mal, MLETDJ
Luo, M.-F., Lu, G.-L., Zheng, X.-M., Zhong, Y.-L., and Wu, T.-H. (1998). “Redox properties of CexZr1−xO2 mixed oxides prepared by the sol-gel method,” J. Mater. Sci. Lett.JMSLD5 17, 15531557. jml, JMSLD5
Trovarelli, A., (Ed.) (2002). Catalysis by Ceria and Related Materials (College Press, London).
Yashima, M., Arashi, H., Kakihana, M., and Yoshimura, M. (1994a). “Raman scattering study of cubic-tetragonal phase transition in Zr1−xCexO2 solid solution,” J. Am. Ceram. Soc.JACTAW 77, 10671671. jac, JACTAW
Yashima, M., Ishizawa, N., and Yoshimura, M. (1993b). “High-temperature X-ray study of the cubic-tetragonal diffusionless phase transition in the ZrO2ErO1.5 system: II, temperature dependences of oxygen ion displacement and lattice parameter of compositionally homogeneous 12 mol% ErO1.5ZrO2,” J. Am. Ceram. Soc.JACTAW 76, 649656. jac, JACTAW
Yashima, M., Kakihana, M., and Yoshimura, M. (1996). “Metastable-stable phes diagrams in the zirconia-containing systems utilized in solid-oxide fuel cell application,” Solid State IonicsSSIOD3 86–88, 11311149. ssi, SSIOD3
Yashima, M., Morimoto, K., Ishizawa, N., and Yoshimura, M. (1993a). “Zirconia-ceria solid solution synthesis and temperature-time-transformation diagram for the 1:1 composition,” J. Am. Ceram. Soc.JACTAW 76, 17451750. jac, JACTAW
Yashima, M., Ohtake, K., Kakihana, M., and Yoshimura, M. (1994b). “Synthesis of metastable tetragonal (t) zirconia-ceria solid solutions by the polymerized complex method,” J. Am. Ceram. Soc.JACTAW 77, 27732776. jac, JACTAW
Yashima, M., Sasaki, S., Yamaguchi, Y., Kakihana, M., Yoshimura, M., and Mori, T. (1998). “Internal distortion in ZrO2-CeO2 solid solutions: Neutron and high resolution synchrotron x-ray diffraction study,” Appl. Phys. Lett.APPLAB 72, 182184. apl, APPLAB

Keywords

High-temperature X-ray powder diffraction study of the tetragonal-cubic phase transition in nanocrystalline, compositionally homogeneous ZrO2–CeO2 solid solutions

  • L. M. Acuña (a1), R. O. Fuentes (a1), D. G. Lamas (a1), I. O. Fábregas (a1), N. E. Walsöe de Reca (a1) and A. F. Craievich (a2)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed