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On the evolution of structure and composition in sol-gel-derived lead zirconate titanate thin layers

Published online by Cambridge University Press:  03 March 2011

Charles D.E. Lakeman ,
Zhengkui Xu  and
David A. Payne
Charles D.E. Lakeman*
Affiliation:
Department of Materials Science and Engineering, Seitz Materials Research Laboratory, and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
Zhengkui Xu
Affiliation:
Department of Materials Science and Engineering, Seitz Materials Research Laboratory, and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
David A. Payne
Affiliation:
Department of Materials Science and Engineering, Seitz Materials Research Laboratory, and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
*
a)Current address: Department of Materials, University of California, Santa Barbara, Santa Barbara, California 93106.
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Abstract

The evolution of structure and chemical distribution in sol-gel derived Pb(Zr0.53T10.47)O3 thin layers was monitored by x-ray diffraction, analytical electron microscopy, and diffuse reflectance Fourier transform infrared spectroscopy. Electron microscopy confirmed the as-deposited coatings were amorphous with short-range order. Medium-range order developed on heat treatment, and chemical heterogeneity was observed at the nanoscale. The extent of compositional heterogeneity decreased with increasing temperature. Above 500 °C, the coatings crystallized into an intermediate phase which converted to the perovskite phase above 600 °C.

Type
Articles
Information
Journal of Materials Research , Volume 10 , Issue 8 , August 1995 , pp. 2042 - 2051
Copyright
Copyright © Materials Research Society 1995

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