Materials for Fusion
We believe our integrated approach yields realistic materials for fusion energy. Oxford Sigma technologies are integrated across the fusion core:
Corrosive
environments
High magnetic
field
High
temperature
High
radiation
High
stress
Complex
interplay
Fusion systems present diverse and complex materials challenges—each requiring sustainable, high-performance, and predictable solutions. Oxford Sigma’s technology is reactor-agnostic: whether magnetic confinement, inertial fusion, or emerging hybrid approaches are pursued, we develop integrated materials solutions that support all fusion pathways.
Founded with a focus on fusion, Oxford Sigma has since expanded its expertise to advanced fission and defence systems. We translate deep technical insight into high-performance, materials-focused solutions tailored for extreme environments. Through rigorous research and engineering, we deliver technologies that meet the demands of fusion, nuclear, and defence applications—enabling faster, safer, and more reliable deployment.
Our approach to materials innovation is structured around six key pillars, each critical to delivering high-performance solutions for fusion, nuclear, and defence systems.
Our capabilities
Oxford Sigma delivers realistic, high-performance materials solutions for extreme environments – including the fusion power plant core – through an integrated, engineering-led approach.
Oxford Sigma applies its expertise in a range of sectors including fission, space and defence.
Fusion-Agnostic Materials Engineering: We apply a “right material, right place” philosophy to select and engineer materials agnostic to fusion approach – supporting magnetic, inertial, and hybrid confinement systems.
Component Design & Prototyping: We lead the design and concept development of critical fusion components, including plasma-facing structures, blankets, and magnets, for power plant developers worldwide.
Modelling & Simulation Integration: We integrate advanced modelling and simulation – including neutronics, computational fluid dynamics (CFD), tritium migration, and tritium breeding analysis – to ensure materials and components are validated, scalable, and deployment-ready.
Experimental Planning & Execution – We plan and execute neutron irradiation experiments and other extreme environment testing to substantiate material performance and support qualification pathways.
Regulatory Alignment: We ensure compliance with relevant standards and codes, enabling reliable and certifiable system deployment across fusion, nuclear, and defence sectors.
Standards Leadership: Oxford Sigma plays a leading role in leading and shaping the ASME Boiler & Pressure Vessel Code (BPV) Section III Division 4 “Fusion Energy Devices” construction code and standard.
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