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Nd-Doped Zirconolite Ceramic and Glass Ceramic Synthesized by Melting and Controlled Cooling

Published online by Cambridge University Press:  10 February 2011

T. Advocat ,
C. Fillet ,
J. Marillet ,
G. Leturco ,
J.M. Boubals  and
A. Bonnetier
T. Advocat
Affiliation:
Commissariat à l'Energie Atomique (CEA), Rhone Valley Research Center, DRDD/SCD, BP 171, 30207 Bagnols-sur-Céze, France
C. Fillet
Affiliation:
Commissariat à l'Energie Atomique (CEA), Rhone Valley Research Center, DRDD/SCD, BP 171, 30207 Bagnols-sur-Céze, France
J. Marillet
Affiliation:
Laboratoire des Verres, UMR 5587, CC 069, Place Eugéne Bataillon, 34095 Montpellier Cedex 5, France
G. Leturco
Affiliation:
Commissariat à l'Energie Atomique (CEA), Rhone Valley Research Center, DRDD/SCD, BP 171, 30207 Bagnols-sur-Céze, France
J.M. Boubals
Affiliation:
Commissariat à l'Energie Atomique (CEA), Rhone Valley Research Center, DRDD/SCD, BP 171, 30207 Bagnols-sur-Céze, France
A. Bonnetier
Affiliation:
Laboratoire des Verres, UMR 5587, CC 069, Place Eugéne Bataillon, 34095 Montpellier Cedex 5, France
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Abstract

Neodymium-doped zirconolite materials may be synthesized by two melting processes. One involves devitrification of an aluminosilicate parent glass containing titanium, zirconium and neodymium oxides, yielding a glass ceramic comprised of submicron zirconolite needles embedded in a silica-rich glass matrix. The second method consists of melting an oxide mixture with the stoichiometry of a highly Nd-enriched zirconolite, then quickly cooling the melt to produce a ceramic rich in zirconolite crystals several hundred microns long containing a large fraction of the initial neodymium.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 506: Symposium – Scientific Basis for Nuclear Waste Management XXI , 1997 , 55
Copyright
Copyright © Materials Research Society 1998

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References

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