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Study of YBa2Cu3O7−x reaction kinetics by Rietveld method

Published online by Cambridge University Press:  05 March 2012

Maria Cristina Comunian Ferraz ,
Heitor Cury Basso  and
Yvonne P. Mascarenhas
Maria Cristina Comunian Ferraz
Affiliation:
Faculdades Integradas de Jau´, Jau´, S.P., Brazil
Heitor Cury Basso*
Affiliation:
Departamento de Engenharia Ele´trica—EESC—USP, C.P. 359, CEP 13560-970 S. Carlos, S.P., Brazil
Yvonne P. Mascarenhas
Affiliation:
Instituto de Fı´sica de Sa˜o Carlos, USP, S. Carlos, S.P., Brazil
*
a)Author to whom correspondence should be addressed. Electronic mail: hcbasso@sel.eesc.sc.usp.br
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Abstract

Using a recent proposed analysis procedure for quantitative phase determination by X-ray powder diffraction, YBa2Cu3O7−x solid state formation reaction kinetics at 900 °C was studied. Although there was the presence of partial amorphous components, it was possible to determine a reaction route for the synthesis of the title compound from X-ray powder diffraction data collected at various stages of the thermal treatment and using the Rietveld method for the quantitative determination of the phase composition

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Type
Technical Articles
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Powder Diffraction , Volume 16 , Issue 1 , March 2001 , pp. 25 - 29
Copyright
Copyright © Cambridge University Press 2001

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References

Famery, R., and Queyroux, F. (1989). “Crystal structure refinement of Y2Cu2O5 from angle crystal x-ray diffraction data,” Mater. Res. Bull. MRBUAC 24, 275–281. mrb, MRBUAC CrossRefGoogle Scholar
Faucher, M., and Pannetier, J. (1980). “Refinement of the Y2O3 structure at 77 K,” Acta Crystallogr., Sect. B: Struct. Crystallogr. Cryst. Chem. ACBCAR 36, 3209–3211. acb, ACBCAR CrossRefGoogle Scholar
Ferraz, M. C., and Basso, H. C. (1996). “Application of the Rietveld method in the study of the reaction of formation of Y2BaCuO5,” J. Appl. Crystallogr. JACGAR 29, 588–590. acr, JACGAR CrossRefGoogle Scholar
Flor, G., Scavini, M., Anselmi-Tamburini, U., and Spinolo, G. (1990). “Kinetics and mechanism of the formation of YBa2Cu3O7−x,” Solid State Ionics SSIOD3 43, 77–83. ssi, SSIOD3 Google Scholar
Hazen, R. M., Finger, L. W., Angel, R. J. et al. (1987). “Crystallographic description of phases in the Y–Ba–Cu–O superconductor,” Phys. Rev. B PRBMDO 35, 7238–7241. prb, PRBMDO CrossRefGoogle ScholarPubMed
Hill, R. J., and Howard, C. J. (1987). “Quantitative phase analysis from neutron powder diffraction data using the Rietveld method,” J. Appl. Crystallogr. JACGAR 20, 467–474. acr, JACGAR CrossRefGoogle Scholar
Jorgensen, J. D., Beno, M. A., Hinks, D. G. et al. (1987). “Oxygen ordering and the orthorhombic-to-tetragonal phase transition in YBa2Cu3O7,” Phys. Rev. B PRBMDO 36, 3608–3616. prb, PRBMDO CrossRefGoogle Scholar
Kipka, R., and Muller-Buschbaum, H. (1977). “About oxucuprates. 20. Alkaline-earth oxocuprate (II) with closed structural groups—BaCuO2,” Z. Naturforsch. B ZNBAD2 32, 121–123. znb, ZNBAD2CrossRefGoogle Scholar
Kwestroo, W., van Hal, M. A. M., and Langerei, C. (1974). “Compounds in System BaO–Y2O3,” Mater. Res. Bull. MRBUAC 9, 1631–1638. mrb, MRBUAC Google Scholar
Machlin, E. S. (1990). “An introduction to aspects of thermodynamics and kinetics relevant to materials science,” Columbia University, New York, N.Y.Google Scholar
Ruckenstein, E., Narain, S., and Wu, N. I. (1989). “Reaction pathways for the formation of the YBa2Cu3O7−x compound,” J. Mater. Res. JMREEE 4, 267–272. jmr, JMREEE CrossRefGoogle Scholar
Sato, S., and Nakada, I. (1989). “Structure of Y2BaCuO5—A refinement by single crystal x-ray diffraction,” Acta Crystallogr., Sect. C: Cryst. Struct. Commun. ACSCEE 45, 523–525. acg, ACSCEE CrossRefGoogle Scholar
Solov’eva, E. N., Glushkova, V. B., Krzhizhanovskaya, V. A., Gryanova, E. S. (1992). “Kinetics of formation of YBa2Cu3Ox, YBa2Cu3Oy, Y2BaCuO5, BaCuO2, and Y2Ba2O5,” Inorg. Mater. (Transl. of Neorg. Mater.) INOMAF 28, 290–294. inm, INOMAF Google Scholar
Tunnell, G., and Posnjak, E. (1935). Z. Kristallogr. III, 1 (Cuo) and 407 (BaCO3).Google Scholar
Wu, N., Wei, T., Hou, S., and Wong, S. (1990). “Kinetic study and modeling of the solid-state reaction Y2BaCuO5+2CuO+3BaCuO2⇒2YBa2Cu3O6.5−x+x½O2,” J. Mater. Res. JMREEE 5, 2056–2065. jmr, JMREEE CrossRefGoogle Scholar
Wu, M. K., and Ashburn, J. R. et al. (1987). “Superconductivity at 93 K in a new mixed phase Y–Ba–Cu–O compound system at ambient pressure,” Phys. Rev. Lett. PRLTAO 58, 908–910. prl, PRLTAO CrossRefGoogle Scholar
Young, R. A. (1992). “Using the Rietveld method at RSS-82,” School of Physics, Georgia Institute of Technology.Google Scholar