Tag

High Pressure Physics

All articles tagged with #high pressure physics

space1 month ago•12 min saved

Lab Reproduces Neptune’s Diamond Rain in Real Time

Researchers replicated the extreme interior conditions of ice giants on a lab bench by driving a thin plastic sheet with two shockwaves and then using an X-ray laser to image the moment carbon atoms crystallize into a diamond lattice as hydrogen separates. The experiment provides direct evidence for the core chemical step behind the long-standing diamond‑rain idea, though it does not prove Neptune or Uranus actually rain diamonds—the planets’ interiors remain modeled rather than observed. The diamonds formed were nanometer-scale, but if similar processes occur in these planets, sinking diamonds could release heat and subtly affect their internal dynamics.

via Space Daily|

#diamond-rain #high-pressure-physics #lab-experiment

space1 month ago•14 min saved

Lab Reproduces Neptune’s Diamond Rain, Revealing Diamonds Form Deep Inside Ice Giants

Scientists at SLAC used ultrafast laser-driven shocks on a hydrocarbon surrogate to mimic Neptune’s deep-interior pressures and temperatures, triggering carbon to crystallize as nanometer-scale diamonds in a femtosecond window and confirming the long-predicted “diamond rain.” Subsequent work shows these conditions can occur at lower thresholds than first thought, implying diamond rain could occur over a broader region of Neptune’s and Uranus’s interiors, potentially influence magnetic fields, and hint at diamond-rich mantles in many exoplanets.

via Space Daily|

#diamond-rain #exoplanets #high-pressure-physics

science2 months ago•5 min saved

A Quasi-1D Superionic Phase Could Lurk Inside Uranus and Neptune

Researchers using first-principles simulations predict a new quasi-1D superionic phase in a carbon–hydrogen compound that could exist inside ice giants Uranus and Neptune at extreme pressures and temperatures. In this phase, hydrogen diffuses along a carbon lattice that forms a helical structure, producing anisotropic heat and electrical conduction. This could influence our understanding of the planets’ unusual magnetic fields and guides how such materials might behave under the extreme conditions found in their interiors.

via ScienceAlert|

#carbon-hydrogen-compound #high-pressure-physics #ice-giants

science9 months ago•3 min saved

Scientists Achieve Room-Temperature Ice, Challenging Physics Norms

Scientists have discovered a new phase of ice, called ice XXI, formed by rapidly compressing water at room temperature, revealing new insights into ice's diverse crystalline structures and potential implications for understanding icy moons.

via Gizmodo|

#crystallization #extraterrestrial-surfaces #high-pressure-physics

science-and-technology2 years ago•3 min saved

"Revolutionizing Superconductivity: High-Pressure Breakthroughs and Quantum Sensor Imaging"

Harvard scientists have developed a groundbreaking tool that integrates quantum sensors into a standard pressure-inducing device, allowing direct imaging of superconducting materials under extreme conditions. This innovation could revolutionize the study of superconducting hydrides, enabling the discovery of new materials and easier access to coveted characteristics in existing ones. The tool, which uses naturally occurring defects in diamond crystals, has the potential to optimize material synthesis and facilitate further research in the field of high-pressure physics.

via SciTechDaily|

#diamond-anvil-cell #harvard-university #high-pressure-physics