MEASUREMENT OF SURFACE AREA OF URANIUM DIOXIDE POWDER AND SINTERED PELLETS
The surface areas of sintered uranium dioxide pellets (individual pellets ranging from 50 to 2000 cm/sup 2/) were measured with a precision of 1.3% and a reproducibility of about 4% with a BET adsorption apparatus, using krypton as the adsorbate. Powder samples (10 to 50 mg) of uranium dioxide, anatase, zirconia, and ceria were measured with a precision of 0.5% and a reproducibility of about 3%. An excellent correlation was found between the surface area and the average particle diameter, as measured with a Fisher Sub-Sieve Sizer. An equation, relating the surface area(S) and the average particle diameter(D) (S= 1.67/D, as compared to S = 0.547/D (if the particles were spherical)) shows the powder has a shape factor of about 3. (auth)
- Research Organization:
- Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AT(11-1)-GEN-8
- NSA Number:
- NSA-15-000620
- OSTI ID:
- 4123540
- Report Number(s):
- NAA-SR-5319
- Country of Publication:
- United States
- Language:
- English
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