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Didymium (Nd-Pr) metal, magnet feed

The rare-earth metal blend that makes strong permanent magnets, and therefore most electric motors.

The bottleneck itself →

  1. Research34 (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.)+3 (Computed: Items first collected in the last 7 days whose publication or award date is within the last 30 days.) new
  2. Lab2 (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.)
  3. Pilot0 (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

Searched for “rare earth separation”, “NdPr”, “neodymium praseodymium”, “rare earth recycling” in titles and abstracts.

36 collected items, newest first ↓Judged by hand ↓Who is active ↓

All stagesFundamental researchApplied / labPilot / demonstrationEarly commercialAt scaleNewestMost cited

Judged by hand

Readiness and substitute status, with reasoning

  • TechnologyEarly commercialreadiness Estimate, not a measurementGrain-boundary diffusion is standard practice and rare-earth-free traction motors are in production; the trade-off is mass and efficiency, not feasibility.By Substrata, open to challenge · 2026-09-15Supporting source →Judgement, cited · 2026-09-15

    Rare-earth-lean and rare-earth-free motors

    Grain-boundary diffusion is standard practice and rare-earth-free traction motors are in production; the trade-off is mass and efficiency, not feasibility.

    Source ↗

Collected by the feeds

Newest first