Thermal conductivity of ThO2 and Th0.98U0.02O2

Authors
Pillai, CGS Raj, P
Citation
Cgs. Pillai et P. Raj, Thermal conductivity of ThO2 and Th0.98U0.02O2, J NUCL MAT, 277(1), 2000, pp. 116-119
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Nuclear Emgineering
Journal title
JOURNAL OF NUCLEAR MATERIALS
ISSN journal
00223115 → ACNP
Volume
277
Issue
1
Year of publication
2000
Pages
116 - 119
Database
ISI
SICI code
0022-3115(200001)277:1<116:TCOTAT>2.0.ZU;2-C
Abstract
The thermal conductivity of ThO2 and Th0.98U0.02O2 was measured from 300-12 00 K. Calculations using a simple theoretical model show that the decrease in thermal conductivity of Th0.98U0.02O2 over that of ThO2 is due to the en hanced phonon-lattice strain interaction in the oxide. It is shown that the intrinsic thermal resistivity arising due to phonon-phonon interaction in these oxides can be quantitatively explained in terms of the modified Leibf ried-Schlomann equation of Slack. (C) 2000 Elsevier Science B.V. All rights reserved.