| Studies on Electrical Conductivity of Refired Sintered
U rani urn Dioxide Pellets |
S. v. K. RAO, P. K. AGNIHOTRI, N. S. ANANDAN,
G. E. PRASAD AND v. K. MOORTHY
Pages : 89-95
DOI : 10.1080/0371750X.1971.10840764 |
| Abstract |
| As reported earlier, electrical conductivity of sintered uranium dioxide pellets
depended on the calcination temperature and the sintering treatments, and could be
related to the microstructure attained. The highest sintering temperature studied was
J70rJC. In the present study, high density pellets prepared by sintering at 1500°C were
refired at 1800°, 1900° and 2000°C. Though there were no significant changes in the
densities, the electrical conductivity of the samples varied considerably showing a
minima at a refiring temperature of 1900°C. Attempts were made to correlate the
changes in electrical conductivity to the microstructural changes llhich still seem to
be influenced by the thermal history of the samples. |
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