precision machining of nuclear-grade graphite

Antares Nuclear, Inc. designs and manufactures modular, transportable fission microreactors for strategic energy applications on Earth, in space, and underwater. Its reactors provide 100kWe to 1MWe for 6+ years and use TRISO coated particle fuel in a prismatic graphite core, sodium heat pipes, and a recuperated N2 closed Brayton cycle. The company completed its Conceptual Design Review and received an approved Nuclear Safety Design Agreement in 2025, and conducted its first reactor demonstration at Idaho National Laboratory in 2026.

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design, build, and test of automated control systemshardware-in-the-loop digital twinsheat pipe and thermal management developmentreactor design and manufacturing