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Ambient Pressure

All articles tagged with #ambient pressure

science4 days ago•5 min saved

Ambient-Pressure Superconductivity Achieved in Hg1223 via Pressure-Quenching

Physicists achieved a metastable superconducting state in the cuprate Hg1223 at ambient pressure by rapidly releasing pressure after compressing it to 30 GPa in a diamond-anvil cell, reaching roughly −122 °C—the highest ambient-pressure superconducting temperature to date; confirmed by Advanced Photon Source analysis and reported in PNAS, this advances the quest for room-temperature superconductivity but practical devices remain distant.

via ScienceAlert|

#ambient-pressure #cuprate #hg1223

science13 days ago•11 min saved

Ambient-Pressure Superconductivity Breaks 30-Year Temperature Barrier

Researchers from the University of Houston and Argonne National Laboratory achieved superconductivity at 151 kelvin (-190°F) under ordinary pressure by applying a brief high-pressure pulse to the cuprate Hg-1223 and then rapidly decompressing it while cold, trapping a metastable state with a higher Tc that persists after pressure is removed. This breaks the long-standing 133 K ambient-pressure record and suggests pressure may not be required to reach higher temperatures, enabling study with standard lab instruments and guiding future efforts toward room-temperature superconductivity.

via Interesting Engineering|

#ambient-pressure #cuprate-superconductors #materials-science

science3 months ago•8 min saved

Ambient-Pressure Breakthrough Pushes Superconductivity Toward Practical Use

Researchers at the University of Houston report a new ambient-pressure superconductivity record of 151 K using a pressure-quench approach that first applies high pressure to raise Tc, then rapidly returns to normal pressure to lock in the enhanced superconducting state, potentially accelerating the path to practical, energy-saving technologies though room-temperature, ambient-pressure superconductivity remains distant.

via SciTechDaily|

#151-k #ambient-pressure #pressure-quenching

science-and-technology3 years ago•2 min saved

"Scientists Achieve First Room-Temperature Superconductor, Sparking Race for Breakthrough"

South Korean scientists claim to have developed a room-temperature ambient-pressure superconductor called LK-99, which could revolutionize technological applications. Superconductors transmit electricity without resistance and typically require extremely low temperatures to function. If verified, LK-99 would be the first room-temperature superconductor that does not require high pressures to operate. The material exhibits properties such as lack of electrical resistance, critical current, critical magnetic field, and the ability to levitate, making it suitable for various applications. The researchers believe that LK-99 could open a new era for humankind.

via IFLScience|

#ambient-pressure #lk-99 #revolutionary