Global to push GA events into
skip to main content

Title: Methods for making a porous nuclear fuel element

Porous nuclear fuel elements for use in advanced high temperature gas-cooled nuclear reactors (HTGR's), and to processes for fabricating them. Advanced uranium bi-carbide, uranium tri-carbide and uranium carbonitride nuclear fuels can be used. These fuels have high melting temperatures, high thermal conductivity, and high resistance to erosion by hot hydrogen gas. Tri-carbide fuels, such as (U,Zr,Nb)C, can be fabricated using chemical vapor infiltration (CVI) to simultaneously deposit each of the three separate carbides, e.g., UC, ZrC, and NbC in a single CVI step. By using CVI, the nuclear fuel may be deposited inside of a highly porous skeletal structure made of, for example, reticulated vitreous carbon foam.
; ;
Issue Date:
OSTI Identifier:
Sandia Corporation (Albuquerque, NM) SSO
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2013 Aug 27
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

Process for making carbon foam
patent, March 2000

Process for manufacturing enhanced thermal conductivity oxide nuclear fuel and the nuclear fuel
patent, February 2010

A new method for infiltration coating complex geometry matrices with compound materials for ISOL production target applications
journal, March 2004
  • Alton, G. D.; Bilheux, J.-C.; McMillan, A. D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 521, Issue 1, p. 108-125
  • DOI: 10.1016/j.nima.2003.11.405

Criteria for selection of target materials and design of high-efficiency-release targets for radioactive ion beam generation
journal, December 1999
  • Alton, G. D.; Beene, J. R.; Liu, Y.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 438, Issue 1, p. 190-209
  • DOI: 10.1016/S0168-9002(99)00949-3

Processing and fabrication of mixed uranium/refractory metal carbide fuels with liquid-phase sintering
journal, November 2002

Preparation of silicon carbide–silicon nitride composite foams from pre-ceramic polymers
journal, October 2000
  • Nangrejo, M. R.; Bao, Xujin; Edirisinghe, Mohan J.
  • Journal of the European Ceramic Society, Vol. 20, Issue 11, p. 1777-1785
  • DOI: 10.1016/S0955-2219(00)00046-7

The high temperature compressive strength of non-oxide ceramic foams
journal, November 1996

Similar records in DOepatents and OSTI.GOV collections: