Fugitive binder for nuclear fuel materials

Details Fugitive binder for nuclear fuel materials Fugitive binder for nuclear fuel materials

1975-09-10

1977-12-06

Nelson, Peter A.

Plastic and nonmetallic article shaping or treating: processes

Shaping or treating radioactive material

2523011R, G21C 2100

Patent

active

040617009

ABSTRACT:
A process for fabricating a body of a nuclear fuel material has the steps of admixing the nuclear fuel material in powder form with a binder of a compound or its hydration products containing ammonium cations and anions selected from the group consisting of carbonate anions, bicarbonate anions, carbamate anions and mixtures of such anions, forming the resulting mixture into a green body such as by die pressing, heating the green body to decompose substantially all of the binder into gases, further heating the body to produce a sintered body, and cooling the sintered body in a controlled atmosphere. Preferred binders used in the practice of this invention include ammonium bicarbonate, ammonium carbonate, ammonium bicarbonate carbamate, ammonium sesquicarbonate, ammonium carbamate and mixtures thereof. This invention includes a composition of matter in the form of a compacted structure suitable for sintering comprising a mixture of a nuclear fuel material and a binder of a compound or its hydration products containing ammonium cations and anions selected from the group consisting of carbonate anions, bicarbonate anions, carbamate anions and mixtures of such anions.

REFERENCES:
patent: 3312631 (1967-04-01), Smith et al.
patent: 3330889 (1967-07-01), Samos et al.
patent: 3345437 (1967-10-01), Flack et al.
patent: 3728421 (1973-04-01), Noothout
patent: 3812050 (1974-05-01), Steele
patent: 3953286 (1976-04-01), Watson et al.
patent: 3963828 (1976-06-01), Becker

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