TRISO Particles

TRISO particle fuel is structurally more resistant to neutron irradiation, corrosion, oxidation and high temperatures than traditional reactor fuels.

TRISO particles have a fuel kernel made up of uranium dioxide or uranium oxycarbide that is then coated with four layers.

Each particle acts as its own containment system thanks to its coated layers. This allows them to retain fission products under all reactor conditions.

TRISO particles can be fabricated into cylindrical pellets for use in either high-temperature gas or molten salt-cooled reactors.

TRISO particles can also be fabricated into billiard ball-sized spheres called “pebbles” for use in either high-temperature gas or molten salt-cooled reactors.