Burnable absorber tristructural isotropic particles and related methods and fuel compacts
AssigneeBattelle Energy Alliance, LLC
InventorsJordan A. Evans, Kevan D. Weaver, Jackson R. Harter
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Abstract
A burnable absorber tristructural isotropic (TRISO) particle that comprises a kernel that comprises a non-fissile neutron-absorbing material, a porous carbon buffer layer surrounding the kernel, a first pyrolytic carbon layer surrounding the porous carbon buffer layer, a silicon carbide layer surrounding the first pyrolytic carbon layer, and a second pyrolytic carbon layer surrounding the silicon carbide layer. A fuel compact comprising burnable absorber TRISO particles and TRISO fuel particles is also disclosed, as is a method of forming the burnable absorber TRISO particle.
Claims20
A burnable absorber tristructural isotropic (TRISO) particle comprising:
- a kernel comprising a non-fissile, neutron-absorbing material;
- a porous carbon buffer layer surrounding the kernel;
- a first pyrolytic carbon layer surrounding the porous carbon buffer layer;
- a silicon carbide layer surrounding the first pyrolytic carbon layer;
- and
- a second pyrolytic carbon layer surrounding the silicon carbide layer.
A fuel compact comprising:
- tristructural isotropic (TRISO) particles disposed in a matrix material, the TRISO particles comprising burnable absorber TRISO particles and TRISO fuel particles, the burnable absorber TRISO particles comprising:
- a non-fissile, neutron-absorbing kernel;
- a porous carbon buffer layer surrounding the non-fissile, neutron-absorbing kernel;
- a first pyrolytic carbon layer surrounding the porous carbon buffer layer;
- a silicon carbide layer surrounding the pyrolytic carbon layer;
- and
- a second pyrolytic carbon layer surrounding the silicon carbide layer;
- and
- the TRISO fuel particles comprising:
- a fissile fuel kernel;
- a porous carbon buffer layer surrounding the fissile fuel kernel;
- a first pyrolytic carbon layer surrounding the porous carbon buffer layer;
- a silicon carbide layer surrounding the first pyrolytic carbon layer;
- and
- a second pyrolytic carbon layer surrounding the silicon carbide layer.
A method of forming a burnable absorber tristructural isotropic particle, the method comprising:
- forming a kernel comprising a burnable absorber material;
- forming a porous carbon buffer layer surrounding the kernel;
- forming a first pyrolytic carbon layer surrounding the porous carbon buffer layer;
- forming a silicon carbide layer surrounding the first pyrolytic carbon layer;
- and
- forming a second pyrolytic carbon layer surrounding the silicon carbide layer.
Dependencies are inferred from the claim text.