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Title: ALUMINA-CLAD UO$sub 2$ FOR FUEL APPLICATIONS

Abstract

Using a special reactive form of high-purity alumina, claddings were applied to UO/sub 2/ particles by a tumbling technique. The clad pellets were isostatically pressed at 100,000 psi and then sintered at 2800 deg F in hydrogen. crack-free spheroidal pellets ranging from 1000 to 2000 mu in diameter were produced. The dense Al/sub 2/O/sub 3/ envelopes surrounding the UO/sub 2/ particles were estimated to be 300 to 500 mu thick. The Al/sub 2/O/sub 3/ claddings protected the UO/sub 2/ from oxidation when the pellets were heated in air for 100 hr at 1200 or 1800 deg . There was no measurable release of fission products from irradiated clad particles heat treated at 1700 deg F in vacuum for 7 days after exposure to 6.0 x 10/sup 12/ nv for 1 hr at room temperature. Claddings of other oxides, such as Beo or MgO, probably could be applied by the same techniques used in applying the Al/sub 2/O/sub 3/ claddings. (auth)

Authors:
; ;
Publication Date:
Research Org.:
Battelle Memorial Inst., Columbus, Ohio
OSTI Identifier:
4292986
Report Number(s):
BMI-1321
NSA Number:
NSA-13-008911
DOE Contract Number:  
W-7405-ENG-92
Resource Type:
Technical Report
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
United States
Language:
English
Subject:
METALLURGY AND CERAMICS; AIR; ALUMINUM OXIDES; BERYLLIUM OXIDES; CHEMICAL REACTIONS; CONFIGURATION; DEGASSING; DENSITY; FISSION PRODUCTS; FUEL CANS; HEAT TREATMENTS; HIGH TEMPERATURE; HYDROGEN; IMPURITIES; IRRADIATION; MAGNESIUM OXIDES; NEUTRON BEAMS; OXIDATION; PELLETS; PRESSURE; SINTERING; THICKNESS; URANIUM DIOXIDE; USES; VACUUM

Citation Formats

Smalley, A.K., Riley, W.C., and Duckworth, W.H. ALUMINA-CLAD UO$sub 2$ FOR FUEL APPLICATIONS. United States: N. p., 1959. Web. doi:10.2172/4292986.
Smalley, A.K., Riley, W.C., & Duckworth, W.H. ALUMINA-CLAD UO$sub 2$ FOR FUEL APPLICATIONS. United States. doi:10.2172/4292986.
Smalley, A.K., Riley, W.C., and Duckworth, W.H. Wed . "ALUMINA-CLAD UO$sub 2$ FOR FUEL APPLICATIONS". United States. doi:10.2172/4292986. https://www.osti.gov/servlets/purl/4292986.
@article{osti_4292986,
title = {ALUMINA-CLAD UO$sub 2$ FOR FUEL APPLICATIONS},
author = {Smalley, A.K. and Riley, W.C. and Duckworth, W.H.},
abstractNote = {Using a special reactive form of high-purity alumina, claddings were applied to UO/sub 2/ particles by a tumbling technique. The clad pellets were isostatically pressed at 100,000 psi and then sintered at 2800 deg F in hydrogen. crack-free spheroidal pellets ranging from 1000 to 2000 mu in diameter were produced. The dense Al/sub 2/O/sub 3/ envelopes surrounding the UO/sub 2/ particles were estimated to be 300 to 500 mu thick. The Al/sub 2/O/sub 3/ claddings protected the UO/sub 2/ from oxidation when the pellets were heated in air for 100 hr at 1200 or 1800 deg . There was no measurable release of fission products from irradiated clad particles heat treated at 1700 deg F in vacuum for 7 days after exposure to 6.0 x 10/sup 12/ nv for 1 hr at room temperature. Claddings of other oxides, such as Beo or MgO, probably could be applied by the same techniques used in applying the Al/sub 2/O/sub 3/ claddings. (auth)},
doi = {10.2172/4292986},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {2}
}