REBCO superconducting tape, 12 mm

A single high-field fusion magnet consumes tape by the kilometre. Annual world output is small enough that one programme’s order book moves the whole market.

Grade that ships · 12 mm REBCO tape, critical current specified at 77 K, self-field.

Part of the process · Energy, which takes years to loosen once somebody decides to.

10How this is computedSum of four judged scores, each 0–3: concentration + substitution + lead time + inelasticity.Method →Code →Check this number with Ask / 12

A handful of tape makers; every fusion magnet programme is a customer. LTS substitutes at lower field.

1 of 1 unsourced rows have pages the sourcing engine found that nobody has checked yet.

• High-temperature superconducting magnets6/9Estimate, not a measurementFull-scale magnets have passed acceptance testing and are in serial production, validated by the US Department of Energy. No power plant has run on them. The constraint has moved from physics to tape supply.By Substrata, open to challenge · 2026-09-15Supporting source →Check this number with Ask · Prototype at meaningful scale

  It does not relieve this bottleneck — it is the reason for it. Every fusion programme buying tape competes for the same few production lines.

All science →

1. Research58 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)+7 (Computed: Items first collected in the last 7 days whose publication or award date is within the last 30 days.) new
2. Lab23 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)+1 (Computed: Items first collected in the last 7 days whose publication or award date is within the last 30 days.) new
3. Pilot1 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)
4. Early0 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)
5. Scale0 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)

judged, with a citation claimed, no citationNumber: papers, preprints and grants the feeds collected — unreviewed

• Paper2026-10-12Superconductor Science and Technology0SourcedOpenAlex, as fetchedOpen the source →Check this number with Ask citations

  An integrated 3D field circuit coupled model for comparative study of quench behavior in NI REBCO coil under 3D and 2D axisymmetric framework ↗

  Abstract Non-insulated (NI) high-temperature superconducting (HTS) coils are widely used in various applications such as high-field and fusion magnets, rendering the precise evaluation of their thermal stability essential. Recently, 2D axisymmetric models are adopted by some…

  North China Electric Power UniversityChinese Academy of SciencesInstitute of Electrical EngineeringUniversity of Science and Technology of China

  Fundamental research · No laboratory or pilot wording.From OpenAlex · not yet reviewedDOI

• Paper2026-10-11Superconductor Science and Technology0SourcedOpenAlex, as fetchedOpen the source →Check this number with Ask citations

  Impact of filamentary architecture on AC loss in coated conductor tapes ↗

  Abstract The tapes based on high-temperature superconducting ceramic REBCO compounds, commonly known as coated conductors (CC), are a promising solution for future magnetic systems in particle accelerators, nuclear fusion reactors, and electrical machines. Nevertheless, under…

  Slovak Academy of SciencesInstitute of Electrical Engineering of the Slovak Academy of SciencesSlovak University of Technology in Bratislava

  Fundamental research · No laboratory or pilot wording.From OpenAlex · not yet reviewedDOIPDF

• Paper2026-10-08Superconductor Science and Technology0SourcedOpenAlex, as fetchedOpen the source →Check this number with Ask citations

  Numerical investigation of screening current effects and mitigation strategies in REBCO accelerator bending magnets ↗

  Abstract High-temperature superconducting (HTS) coated conductors have attracted increasing attention for high-field accelerator applications owing to their superior electromagnetic performance under strong magnetic fields. However, the pronounced screening-current effect can…

  University of Science and Technology of ChinaChinese Academy of SciencesInstitute of Modern Physics

  Fundamental research · No laboratory or pilot wording.From OpenAlex · not yet reviewedDOIPDF

• Paper2026-10-07Superconductor Science and Technology0SourcedOpenAlex, as fetchedOpen the source →Check this number with Ask citations

  Simulation of self-arresting screening current stress damage in a >900 MPa REBCO coil using detailed conductor models ↗

  Abstract Screening current in REBCO-coated conductors amplifies the Lorentz force. In high fields, screening current stress (SCS) can cause excessive magnetic stress and subsequent plastic deformation of the conductor. This is recognized as a key issue in the high-field…

  Florida State University

  Fundamental research · No laboratory or pilot wording.From OpenAlex · not yet reviewedDOI

• Preprint2026-10-07arXiv0SourcedarXiv, as fetchedOpen the source →Check this number with Ask citations

  Delamination in Large REBCO Coils ↗

  REBCO coated conductors have been used in ultrahigh field magnets for condensed matter physics research, nuclear fusion, particle accelerators, and NMR applications. It is well known, however, that they are not mechanically strong against delamination due to their intrinsic…

  Fundamental research · No laboratory or pilot wording.From arXiv · not yet reviewedPDFalso at doi.org

The full pipeline, by stage →

• European Investment BankDevelopment bank

  The EU’s own bank, lending long-term for infrastructure, energy networks and industrial capacity that meets EU policy objectives.

  Development bank will not fund · Anything outside its mandate, however commercially sound. It is patient and cheap and narrow, in that order.

A mandate covering the kind of asset that would relieve this row. Not a claim that anyone has funded one, and not advice.

• Energyone turn: Months to years

  Worst judgement on this loop: 11 of 12How this is computedThe highest severity score among the bottlenecks recorded as gates on the loop.Method →Code →Check this number with Ask, judged 2026-09-15

• Materials qualificationone turn: Years

  Worst judgement on this loop: 11 of 12How this is computedThe highest severity score among the bottlenecks recorded as gates on the loop.Method →Code →Check this number with Ask, judged 2026-09-15

A loop is one design, build and measure turn. Severity is a dated judgement on a 0–12 scale, not a measurement, and the judgements are not added together — the figure shown is the worst single one.

• High-temperature superconducting magnetsrelieved by

  source-backed readiness judgement