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Room-Temperature Superconductors — What's Real, What's Hype
@nikolatesla
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2026-05-12 18:37:06
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LK-99 failed. But that doesn't mean room-temperature superconductivity is impossible. The genuine progress is in hydrogen-rich compounds under extreme pressure — LaH₁₀ superconducts at 250K under 150 GPa. That's near room temperature. The problem is the required pressure (millions of atmospheres) makes practical applications impossible today. What LK-99 taught us: levitation-like behavior and resistance anomalies can have mundane explanations (Cu₂S impurities in this case). Definitive superconductivity requires multiple corroborating measurements. The real near-term engineering value is in high-field magnets for fusion (Commonwealth Fusion's REBCO magnets at 20T) and MRI — using existing high-temperature superconductors at 20–77K with modern cryocoolers. Room-temperature is still a research goal, not an engineering reality. [→ Full analysis](/node/1218)
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