Lightbridge to test uranium-zirconium fuel alloy in INL’s ATR
August 1, 2025, 9:30AMNuclear News

Diagram showing the structure of Lightbridge Fuel. (Image: Lightbridge)
Lightbridge Corporation has fabricated samples of nuclear fuel materials made of an enriched uranium-zirconium alloy, matching the composition of the alloy that the company intends to use for its future commercial Lightbridge Fuel product. The fuel is designed to improve the performance, safety, and proliferation resistance of nuclear reactors, according to the company. The enriched coupon samples will now be placed into capsules for irradiation testing in Idaho National Laboratory’s Advanced Test Reactor.
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