Actions for STUDIES OF THE ELECTRICAL PROPERTIES OF URANIUM OXIDES. I. ELECTRICAL CONDUCTIVITY OF [alpha]-U3O8

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STUDIES OF THE ELECTRICAL PROPERTIES OF URANIUM OXIDES. I. ELECTRICAL CONDUCTIVITY OF [alpha]-U3O8

Author
George, A. M.
Published
[Place of publication not identified] : [publisher not identified], 1963.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1963.
Physical Description
microfiche : negative ; 8 x 13 cm
Additional Creators
Karkhanavala, M. D.

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Summary
BS>The electrical conductivity of two grades of alpha -U/sub 3/O/sub 8/ (nuclear pure and spec-pure) was studied as a function of temperature and partial pressure of oxygen in the ranges of 50 to 850 deg C and 150 to 10/sup -2/ mm of Hg. The log sigma vs. 1/T plots (for P/sub O/sub 2/ = 150 mm) show two linear portions with a break at about 450 deg C. The temperature dependence of conductivity is represented by the equation sigma = sigma /sub o/e-/sup - epsilon /2KT/ with activation energies of 0.64 plus or minus 0.03 and 1.10 plus or minus 0.02 ev below and above the transition point respectively. In the high temperature region sigma /sub o/ could be regarded as constant with an average value of 138.4 ( OMEGA -cm)/sup -1/ for the nuclear pure material. The logarithm of conductivity varied linearly with log P/sub O//sub 2/ and the average slope of the plots was found to be --0.170 plus or minus 0.008. The main features of conduction mechanism in the temperature range investigated are suggested. (auth)
Report Numbers
AEET/CD/13
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
NSA number: NSA-17-032562
OSTI Identifier 4691059
Research organization: India. Atomic Energy Establishment, Trombay.
View MARC record | catkey: 38681845