Fusion\u2019s push toward commercial power is creating a new challenge for the industry to produce enough specialized material for the magnets that control the reaction.<\/p>\n
Bruker Energy & Supercon Technologies (BEST) and Luvata Materials & Solutions have now announced a strategic collaboration to expand production of high-performance superconductors for large fusion projects.<\/p>\n
The companies will focus on niobium-tin wire produced through the Rod-Restack Process, or RRP. The material carries extremely high currents inside the magnets used by magnetic confinement systems.<\/p>\n
Demand could rise sharply as fusion developers move toward larger demonstration plants. Projects across the US and overseas will require far more superconducting material than earlier research machines.<\/p>\n
Bigger magnets<\/p>\n
Superconducting magnets help fusion machines confine plasma without the energy losses associated with conventional conductors. RRP niobium-tin superconductors can support magnetic fields from about 12 to 20 tesla. That makes them suitable for high-field tokamaks and stellarators.<\/p>\n
The technology already has a track record in major scientific facilities. RRP superconductors have been used in CERN\u2019s Large Hadron Collider and high-field nuclear magnetic resonance magnets.<\/p>\n
Fusion programs have also relied on the material. BEST and Luvata previously supplied expertise and materials to ITER and Germany\u2019s Wendelstein 7-X stellarator. The growing scale of planned fusion systems now brings manufacturing capacity into sharper focus.<\/p>\n
\u201cThe future of fusion energy<\/a> will depend not only on scientific breakthroughs, but also on the availability of a robust industrial ecosystem,\u201d Burkhard Prause, BEST\u2019s president and CEO, said. He added the partnership will help expand production while strengthening superconducting supply chains for fusion customers.<\/p>\n Supply pressure<\/p>\n Fusion companies increasingly need suppliers capable of producing specialized materials at industrial scale. A promising reactor design still faces hurdles if manufacturers cannot produce its magnets fast enough.<\/p>\n BEST and Luvata plan to expand manufacturing capacity for RRP superconductors. They also want to give fusion developers more flexibility across their supply chains.<\/p>\n The requirement extends across different reactor designs. Tokamaks use doughnut-shaped chambers, while stellarators rely on more complex magnetic geometries.<\/p>\n Major fusion programs are now advancing across the US, Europe, China, Japan and South Korea. Their material requirements could exceed those of earlier projects focused mainly on plasma research.<\/p>\n Gauss Fusion is evaluating RRP superconductors for its planned high-field stellarator demonstrator. The company is also considering the technology for its proposed GIGA fusion power plant platform.<\/p>\n Fusion scales up<\/p>\n \u201cThe fusion sector is entering an exciting phase of growth and industrialization,\u201d Antti Kilpinen, Luvata\u2019s executive vice president for superconductors, said<\/a>. He said larger programs could create opportunities for industrial suppliers with experience in superconducting technologies.<\/p>\n The shift changes the challenge facing fusion beyond plasma performance. Researchers still need to prove their machines can sustain the conditions required for fusion.<\/p>\n