STAR® Wire

Overview

AMPeers' STAR® (Symmetric Tape Round) superconducting wires combine flexibility, strength, and record performance for next-generation high-field and high-power systems. With diameters as small as 1–2 mm, STAR® wires maintain high critical currents from 4.2 K to 77 K and can bend to a 15 mm radius without performance loss—capabilities unmatched by traditional superconductors.

Built on AMPeers' symmetric REBCO tape architecture and Advanced MOCVD technology, STAR® delivers over 3× higher current density and >1,000 A/mm² at 20 T. The design enables compact, low-loss, high-field magnets for fusion, particle accelerators, defense, and advanced power systems.

AMPeers has scaled STAR® production to 60 m lengths and is partnering with Fermilab and LBNL to integrate STAR® cables into CCT and COMB magnet systems, proving robust performance in the most demanding environments.