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An Experimental Determination of the Thermophysical Properties of [NZP]-Structure Type Ceramics

Published online by Cambridge University Press:  23 March 2012

Daniel J. Gregg ,
Inna Karatchevtseva ,
Gerry Triani ,
Gregory R. Lumpkin  and
Eric R. Vance
Daniel J. Gregg
Affiliation:
Institute of Materials Engineering, ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
Inna Karatchevtseva
Affiliation:
Institute of Materials Engineering, ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
Gerry Triani
Affiliation:
Institute of Materials Engineering, ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
Gregory R. Lumpkin
Affiliation:
Institute of Materials Engineering, ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
Eric R. Vance
Affiliation:
Institute of Materials Engineering, ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
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Abstract

Calcium and barium zirconium phosphates were prepared by hot isostatic pressing and their thermophysical properties investigated for potential use as actinide hosts for inert matrix fuels (IMF) in light water reactors. The materials are thermally stable up to at least 1600°C in air, however they degrade above around 1400°C in an inert atmosphere. The heat capacity and thermal conductivity were measured from room temperature up to 1200°C. The thermal conductivity coefficient for both CZP and BZP at 1000°C is 1.0 W m-1 K-1, a relatively low thermal conductivity that requires NZP-type materials to be dispersed in a composite cercer or cermet IMF.

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Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1475: Symposium NW – Scientific Basis for Nuclear Waste Management XXXV , 2012 , imrc11-1475-nw35-p11
Copyright
Copyright © Materials Research Society 2012

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References

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