Void forming pyrolytic carbon coating process

Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Spherical particles

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376261, 427 6, G21C 320

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active

060815744

ABSTRACT:
A pyrolytic carbon coated nuclear fuel particle and method of making it. The fuel particle has a core composed of a refractory compound of an actinide metal. The pyrolytic carbon coating surrounds the core so as to provide a void volume therebetween. The coating has an initial density of no greater than 1.45 grams/cm.sup.3 and an anisotropy factor than 3.0 and a final density upon heat treatment above about 2000.degree. C. of greater than 1.7 grams/cm.sup.3 and an anisotropy factor greater than 5.

REFERENCES:
patent: 3151037 (1964-09-01), Johnson et al.
Reactor Materials, vol. 6, No. 2, pp. 30,33,36,37, May 1963.

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