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Title: Nuclear fuel particles and method of making nuclear fuel compacts therefrom

Methods for making nuclear fuel compacts exhibiting low heavy metal contamination and fewer defective coatings following compact fabrication from a mixture of hardenable binder, such as petroleum pitch, and nuclear fuel particles having multiple layer fission-product-retentive coatings, with the dense outermost layer of the fission-product-retentive coating being surrounded by a protective overcoating, e.g., pyrocarbon having a density between about 1 and 1.3 g/cm.sup.3. Such particles can be pre-compacted in molds under relatively high pressures and then combined with a fluid binder which is ultimately carbonized to produce carbonaceous nuclear fuel compacts having relatively high fuel loadings.
Inventors:
 [1];  [2]
  1. (Encinitas, CA)
  2. (San Diego, CA)
Issue Date:
OSTI Identifier:
867930
Assignee:
United States of America as represented by United States (San Diego, CA) OSTI
Patent Number(s):
US 5037606
Contract Number:
AC03-84SF11962
Research Org:
GENERAL ATOMICS
Country of Publication:
United States
Language:
English
Subject:
nuclear; fuel; particles; method; compacts; therefrom; methods; exhibiting; heavy; metal; contamination; fewer; defective; coatings; following; compact; fabrication; mixture; hardenable; binder; petroleum; pitch; multiple; layer; fission-product-retentive; dense; outermost; coating; surrounded; protective; overcoating; pyrocarbon; density; cm; pre-compacted; molds; relatively; pressures; combined; fluid; ultimately; carbonized; produce; carbonaceous; loadings; metal contamination; multiple layer; heavy metal; nuclear fuel; fuel particles; outermost layer; fuel compacts; fuel particle; produce carbon; defective coatings; /376/427/976/