Process for the production of coated fuel particles for high tem

Details Process for the production of coated fuel particles for high tem Process for the production of coated fuel particles for high tem

1978-11-15

1980-07-15

Silverberg, Sam

Coating processes

Radioactive base or coating

Particles or nuclear reactor fuel elements coated

176915P, 209172, C05B 3551, G21C 358, C04B 4106

Patent

active

042128986

ABSTRACT:
Coated nuclear fuel particles are produced by batchwise deposition of several pyrolytic carbon and/or silicon carbide layers on fuel particles wherein the first layer is a porous pyrolytic carbon layer and wherein the coated particles are subsequently sieved and/or sized. The process comprises fractionaling all of the coating batches according to the geometric density by the hydrostatic method of weighing by buoyancy after placing all batches in heavy liquids and selecting for further working up into fuel elements only the particle fraction which has a geometric density whose boundary value deviates from the average density by less than .+-.20%.

REFERENCES:
patent: 3719516 (1973-03-01), Sturge

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