PROGRESS ON THE USE OF GAS-PRESSURE BONDING FOR FABRICATING LOW-COST CERAMIC, CERMET, AND DISPERSION FUELS. PHASE II REPORT ON AEC FUEL-CYCLE PROGRAM

Technical Report · Tue Nov 01 00:00:00 EST 1960

DOI:https://doi.org/10.2172/4084487· OSTI ID:4084487

Paprocki, S.J. ed.

Uranium dioxide clad with Type 304 stainless steel was fabricated into rod, tubular, and flat-plate shapes by the gas pressure-bending process. Modifications of these basic designs included compartmented rods, corrugrted rods, and compartmented plates. The cold-compacting behavior in methods other than direct cold pressing and the pressurebonding behavior of seven commercial oxides and various mixtures were defined. Through the selection of initial oxides and compacting procedures, final oxide densities of 86 to 99.5% of theoretical were achieved. It was noted that the oxides tend to approach stoichiometry during the pressure-bonding process. Permeability measurements of high-density pressure-bonded uranium dioxide resulted in values that were within the blank rate of measuring apparatus, indicating equivalence to high-density sintering oxides. Thermal-conductivity measurements on similar materials also are consistent with high-density oxide as prepared by pressing and sintering. Of the oxides investigated, mixtures of ceramic and fused oxides appear to offer the most promise of achieving low-cost fuel elements through the pressure-bonding process. Such mixtures containing from 30 to 60 wt.% ceramic oxide provide a high initial pressed density and also permit achieving a high final density. Both oxides are low-cost materials. The preparation and pressure bending of uranium dioxidestainless steel cermets were also briefly studied. Materials of densities up to 96.5% of theoretical were obtained. Modulus-of-rupture and thermal-conductivity measurements also were obtained on these materials. (auth)

• Research Organization: Battelle Memorial Inst., Columbus, Phio
• DOE Contract Number: W-7405-ENG-92
• NSA Number: NSA-15-005339
• OSTI ID: 4084487
• Report Number(s): BMI-1475
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-61
• Country of Publication: United States
• Language: English

Related Subjects

METALS, CERAMICS, AND OTHER MATERIALS
BONDING
CANNING
CERAMICS
CERMETS
COMPACTING
DENSITY
DISPERSIONS
ECONOMICS
FUEL ELEMENTS
GASES
LOW TEMPERATURE
MEASURED VALUES
PLATES
POROSITY
PRESSURE
QUALITATIVE ANALYSIS
RODS
SINTERING
STAINLESS STEELS
TENSILE PROPERTIES
THERMAL CONDUCTIVITY
TUBES
URANIUM DIOXIDE