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XRD Study of the Influence of Heat Treatment on the Microstructure of Sol-Gel Processed ZrO2-Y2O3 Ceramics

Published online by Cambridge University Press:  21 February 2011

C. Barrera-Solano ,
M. PiÑero ,
C. Jiménez-Solís  and
L. Gago-Duport
C. Barrera-Solano
Affiliation:
Dpto. de Fisica de la Materia Condensada.
M. PiÑero
Affiliation:
Dpto. de Fisica de la Materia Condensada.
C. Jiménez-Solís
Affiliation:
Dpto. de Fisica de la Materia Condensada.
L. Gago-Duport
Affiliation:
Dpto. de Ciencia de los Materiales e Ingeniería Metalúrgica y Quimica Inorgánica., Universidad de Cádiz, Apdo.40 Pto. Real (Cadiz). Spain
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Abstract

YSZ samples containing 5 and 10 mol% of Y203 were prepared by controlled hydrolysis of metal alkoxides. The dried powders were calcined at 800°C and then they were uniaxially pressed and sintered at different temperatures and next heated at 1400°C (∼ 5 MPa) or annealed at 1600°C for 24 h. The quantitative analysis of the experimental X-ray diffraction (XRD) spectra was performed by Whole Pattern Fitting (WPF). A Pseudo-Voigt (Thompson-Cox-Hastings) was used as shape profile function. The respective phase fractions (wt %) were fitted for both solid state solutions using the scale factor. The heat treatment induced changes are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 398: Symposium C – Thermodynamics and Kinetics of Phase Transformations , 1995 , 643
Copyright
Copyright © Materials Research Society 1998

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References

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