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Preparation and Characterization of Polycrystalline and Single Crystal Gd Doped Barium Cerium Oxide

Published online by Cambridge University Press:  15 February 2011

Dave West ,
S.M. Haile  and
R.S. Feigelson
Dave West
Affiliation:
University of Washington, Department of Materials Science and Engineering, Box 352120 Seattle,, WA 98195-2120
S.M. Haile
Affiliation:
Author to whom all correspondence should be addressed
R.S. Feigelson
Affiliation:
Center For Materials Research, Stanford University, Palo Alto, CA 94305-4045
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Abstract

Polycrystalline samples of BaCexGd1-x03 have been prepared with 0.10 < x < 0.20. X-ray powder diffraction indicates the samples contain only one crystalline phase for doping levels < 0.15. Transmission electron microscopy analyses on the 10% doped sample revealed no glassy phases in the intergranular regions. Single crystal fibers were prepared by Laser Heated Pedestal Growth (LHPG) from the polycrystalline samples. Fiber growth was non-conservative thus the single crystal quality was limited. Preliminary conductivity measurements on the polycrystalline samples using AC impedance spectroscopy are compared with literature data.

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References

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