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Synchrotron X-ray powder diffraction study of the tetragonal-cubic phase transition in nanostructured ZrO2-Sc2O3 solid solutions

Published online by Cambridge University Press:  06 March 2012

Paula M. Abdala ,
Diego G. Lamas ,
Mária E. Fernández de Rapp ,
Noemí E. Walsöe de Reca ,
Aldo F. Craievich  and
Márcia C. A. Fantini
Paula M. Abdala
Affiliation:
Centro de Investigaciones en Sólidos (CINSO), Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas-Consejo Nacional de Investigaciones Científicas y Técnicas (CITEFA-CONICET), J.B. de La Salle 4397, 1603 Villa Martelli, Pcia. de Buenos Aires, Argentina
Diego G. Lamas
Affiliation:
Centro de Investigaciones en Sólidos (CINSO), Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas-Consejo Nacional de Investigaciones Científicas y Técnicas (CITEFA-CONICET), J.B. de La Salle 4397, 1603 Villa Martelli, Pcia. de Buenos Aires, Argentina
Mária E. Fernández de Rapp
Affiliation:
Centro de Investigaciones en Sólidos (CINSO), Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas-Consejo Nacional de Investigaciones Científicas y Técnicas (CITEFA-CONICET), J.B. de La Salle 4397, 1603 Villa Martelli, Pcia. de Buenos Aires, Argentina
Noemí E. Walsöe de Reca
Affiliation:
Centro de Investigaciones en Sólidos (CINSO), Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas-Consejo Nacional de Investigaciones Científicas y Técnicas (CITEFA-CONICET), J.B. de La Salle 4397, 1603 Villa Martelli, Pcia. de Buenos Aires, Argentina
Aldo F. Craievich
Affiliation:
Instituto de Física, Universidade de São Paulo, Rua do Matão Travessa R 187, 05508-900 São Paulo, São Paulo, Brazil
Márcia C. A. Fantini
Affiliation:
Instituto de Física, Universidade de São Paulo, Rua do Matão Travessa R 187, 05508-900 São Paulo, São Paulo, Brazil
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Abstract

The transition between tetragonal and cubic phases in nanostructured ZrO2-Sc2O3 solid solutions by high-temperature X-ray powder diffraction using synchrotron radiation is presented. ZrO2-8 and 11 mol% Sc2O3 nanopowders that exhibit the t′- and t″-forms of the tetragonal phase, respectively, were synthesized by a stoichiometric nitrate-lysine gel-combustion route. The average crystallite size treated at 900°C was about 25 nm for both compositions. Our results showed that t′-t″ and t″-cubic transitions take place for the 8 and 11 mol% Sc2O3 samples, respectively.

Keywords

nanocrystalline powderszirconia-scandiahigh-temperature X-ray powder diffractionsynchrotron radiation
Type
Technical Articles
Information
Powder Diffraction , Volume 23 , Special Issue S1 , March 2008 , pp. S87 - S90
Copyright
Copyright © Cambridge University Press 2008

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References

Fujimori, H., Yashima, M., Kakihana, M., and Yoshimura, M. (1998). “Structural changes of scandia-doped zirconia solid solutions: Rietveld analysis and Raman scattering,” J. Am. Ceram. Soc.JACTAW 81, 2885–2893. jac, JACTAW CrossRefGoogle Scholar
Klug, H.P. and Alexander, L.E. (1974). X-ray Diffraction Procedures for Polycrystalline and Amorphous Materials (Wiley, New York), 2nd ed.Google Scholar
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 synthesised by a gel-combustion process,” J. Appl. Crystallogr.JACGAR 38, 867–873. acr, JACGAR CrossRefGoogle Scholar
Lamas, D.G., Rosso, A.M., Suarez Anzorena, M., Fernández, A., Bellino, M.G., Cabezas, M.D., Walsöe de Reca, N.E., and Craievich, A.F. (2006). “Crystal structure of pure ZrO2 nanopowders,” Scr. Mater.SCMAF7 55, 553–556. scz, SCMAF7 CrossRefGoogle Scholar
Lee, W.E. and Rainforth, W.M. (1994). Ceramic Microstructures: Property Control by Processing (Chapman and Hall, London), p. 317.Google Scholar
Rodríguez-Carvajal, J. (1990). “FullProf: A Program for Rietveld Refinement and Pattern Matching Analysis,” Satellite Meeting on Powder Diffraction of the XV Congress of the IUCr, Toulouse, France, p. 127.Google Scholar
Yashima, M., Ishizawa, N., and Yoshimura, M. (1993a). “High-temperature X-ray study of the cubic-tetragonal diffusionless phase transition in the ZrO2-ErO1.5 system: I, phase change between two forms of a tetragonal phase, t′-ZrO2 and t″-ZrO2, in the compositionally homogeneous 14 mol% ErO1.5-ZrO2,” J. Am. Ceram. Soc.JACTAW 76, 641–648. jac, JACTAW CrossRefGoogle Scholar
Yashima, M., Ishizawa, N., and Yoshimura, M. (1993b). “High-temperature X-ray study of the cubic-tetragonal diffusionless phase transition in the ZrO2-ErO1.5 system: II, temperature dependences of oxygen ion displacement and lattice parameter of compositionally homogeneous 12 mol% ErO1.5-ZrO2,” J. Am. Ceram. Soc.JACTAW 76, 649–656. jac, JACTAW CrossRefGoogle Scholar
Yashima, M., Kakihana, M., and Yoshimura, M. (1996). “Metastable-stable phase diagrams in the zirconia-containing systems utilized in solid-oxide fuel cell application,” Solid State IonicsSSIOD3 86–88, 1131–l149. ssi, SSIOD3 CrossRefGoogle Scholar