Nicholas Linneen, Ph.D.

Dr. Nicholas Linneen is Vice President of Fuel Development at TRISO-X, where he leads the process development and commercial-scale deployment of TRISO fuel fabrication. A recognized subject matter expert with more than 15 years of experience in sol-gel chemistry, advanced ceramic processing, and materials science, he oversees multidisciplinary R&D teams and guides operations for the TRISO-X Laboratory.

His achievements include spearheading the rapid design and fabrication of HALEU irradiation test articles for the Xe-100 pebble-bed reactor, providing SME-level guidance on the design and implementation of proprietary fabrication systems and process reliability, and optimizing kernel conversion pathways. Earlier in his career, Dr. Linneen served as a Technical Fellow at X-energy and as a Postdoctoral Researcher at ORNL, where he engineered advanced polymeric membrane systems and extraction technologies. He holds multiple patents across uranium processing, rotary furnace hardware, and advanced separations.

Dr. Linneen earned his B.S.E., M.S., and Ph.D. in Chemical Engineering from Arizona State University.