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Keyword：U.S. nuclear fuel
U.S. Completes Mechanical Property Measurements of Irradiated HALEU TRISO Fuel Particles
Researchers at the U.S. Department of Energy's Oak Ridge National Laboratory (ORNL) have completed mechanical property measurements of irradiated high-assay low-enriched uranium (HALEU) TRISO fuel particles, providing new experimental data for the development and qualification of next-generation nuclear fuels. This is an optical cross-sectional image of an irradiated AGR-2 TRISO fuel particle in the Irradiated Fuels Examination Laboratory at Oak Ridge National Laboratory. Image credit: Oak Ridge National Laboratory, U.S. Department of Energy. TRISO fuel, or tri-structural isotropic fuel, features particles coated with multiple protective layers, typically including pyrolytic carbon layers and a silicon carbide layer. This structure provides strong fission product retention capability and is considered one of the key fuel options for advanced reactors, particularly high-temperature gas-cooled reactors. Understanding the property changes of these coatings after irradiation is a critical step in predicting fuel performance under reactor operating conditions.
2026-09-04
U.S. Lightbridge Selected for DOE LaunchPad INL Program to Advance Commercialization of Advanced Nuclear Fuel
Lightbridge Corporation, a U.S. advanced nuclear fuel technology company, announced on August 31 that it has been selected for the Nuclear Energy LaunchPad program (LaunchPad INL) managed by the U.S. Department of Energy's (DOE) National Reactor Innovation Center (NRIC) at Idaho National Laboratory (INL). The company stated that the program will provide an accelerated pathway for it to design, construct, and operate a dedicated facility at INL to manufacture lead test assemblies (LTAs) of Lightbridge Fuel™, with subsequent testing supported at U.S. commercial nuclear power plants. Lead test assemblies are generally regarded as a critical qualification step for nuclear fuel after reactor testing and before commercial fuel sales...
2026-09-01