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Iron Aluminium Silico-Phosphate Glasses Including U3O8

Published online by Cambridge University Press:  15 February 2011

Carlos J.R. Gonzalez Oliver ,
Diego O. Russo ,
Francisco C. Lovey ,
Maximina Romero  and
Jesus Ma. Rincon
Carlos J.R. Gonzalez Oliver
Affiliation:
Groups of Materials Characterization, Nuclear Materials and Physics of Metals Centro Atomico de Bariloche (CAB), S. C. de Bariloche, Argentina
Diego O. Russo
Affiliation:
Groups of Materials Characterization, Nuclear Materials and Physics of Metals Centro Atomico de Bariloche (CAB), S. C. de Bariloche, Argentina
Francisco C. Lovey
Affiliation:
Groups of Materials Characterization, Nuclear Materials and Physics of Metals Centro Atomico de Bariloche (CAB), S. C. de Bariloche, Argentina
Maximina Romero
Affiliation:
Groups of Materials Characterization, Nuclear Materials and Physics of Metals Centro Atomico de Bariloche (CAB), S. C. de Bariloche, Argentina Group/Lab of Vitreous and Ceramic Materials, Instituto E. Torroja de CC Construccion (IETcc, CSIC), Madrid, Spain
Jesus Ma. Rincon
Affiliation:
Groups of Materials Characterization, Nuclear Materials and Physics of Metals Centro Atomico de Bariloche (CAB), S. C. de Bariloche, Argentina Group/Lab of Vitreous and Ceramic Materials, Instituto E. Torroja de CC Construccion (IETcc, CSIC), Madrid, Spain
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Abstract

The obtention of iron aluminium silicate- phosphate glasses including U3O8 oxide has been carried out and the study of crystalline phases formation. A serie of these original glasses have been investigated by thermal cycles at 780? C for promoting the nucleation and growth of crystalline phases of iron aluminium phosphates including U3O8 in the 5.1- 13.71 wt% range. Thermal expansion and DTA/G analysis have been carried out showing behaviour trend to crystallization of these glasses. The glass with higher uranium oxide content shows liquid phase in phase separation which change of microstructure during HREM observations. It seems produced a pulsed order- disorder processing which takes place under the electron beam. This effect first observed in TEM-HREM on phase separation droplets is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1193: Scientific Basis for Nuclear Waste Management XXXIII , 2009 , 329
Copyright
Copyright © Materials Research Society 2009

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