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The Defect Chemistry of Pyrochlore Solid Solutions of the Type R2(ZrxTil-x)2O7 with R=Gd, Y

Published online by Cambridge University Press:  28 February 2011

P.K. Moon
Affiliation:
Crystal Physics & Optical Electronics Laboratory, Department of Materials Scienc & Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
M.A. Spears
Affiliation:
Crystal Physics & Optical Electronics Laboratory, Department of Materials Scienc & Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
H.L. Tuller
Affiliation:
Crystal Physics & Optical Electronics Laboratory, Department of Materials Scienc & Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
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Abstract

Two pyrochlore solid solutions, Gd2(ZrxTi1-x)2O7 and Y2(ZrxTil-x)2O7, were investigated to clarify the relationships between composition, structural disorder and ionic and electronic transport. A defect chemical model was developed based on the results of electrical and x-ray diffraction measurements. Frenkel, reduction and bandgap energies were derived.

Type
Research Article
Copyright
Copyright © Materials Research Society 1989

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References

[1] Moon, P.K. and Tuller, H.L. presented at the 1987 NATO ASI Symp. Fast Ion Conductors, Erice, Italy, 1987 (in press).Google Scholar
[2] Moon, P.K. and Tuller, H.L., Sol. St. Ionics, 28 470 (1988).CrossRefGoogle Scholar
[3] Tuller, H.L. and Moon, P.K., Mat. Sci. & Eng., Bl 171 (1988).Google Scholar
[4] Moon, P.K. and Tuller, H.L., presented at the 1988 MRS Fall Mtg., Symp. Sol. St. Ionics, Boston, MA, to be published.Google Scholar
[5] Moon, P. K., Ph. D. Thesis, Massachusetts Institute of Technology, 1988.Google Scholar