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Diamond Anvil Cell

All articles tagged with #diamond anvil cell

science3 days ago•9 min saved

Researchers Identify Hexagonal Close-Packed Ice Phase at Extreme Pressures

A team led by Alexis Forestier has successfully created hexagonal close-packed (HCP) ice in a laboratory setting, achieving conditions that mimic the interiors of ice giants like Neptune and Uranus. Using a diamond anvil cell and synchrotron X-ray diffraction, the researchers compressed water to over 200 GPa and heated it to approximately 2,000 K. This new phase, distinct from previously known forms like body-centered cubic (BCC) and face-centered cubic (FCC) ice, provides critical data for modeling planetary cores. The findings, published in Physical Review Letters, expand the known phase diagram of water and offer new constraints for understanding the deep interiors of gas giants, where direct observation is impossible.

via Hackaday|

#diamond-anvil-cell #high-pressure-physics #ice-phases

science8 months ago•326 min saved

Earth's Core May Harbor Massive Hydrogen Reserves, Redrawing Water's Origin

A Nature Communications study estimates Earth’s molten iron core could host a vast hydrogen reservoir—potentially the planet’s largest—amounting to about 0.07% to 0.36% of the core’s weight, equivalent to roughly nine to 45 hydrogen oceans. Using atom probe tomography and high-pressure iron experiments to mimic core formation, researchers examined how hydrogen interacts with silicon and oxygen under extreme conditions. If confirmed, this suggests Earth acquired most of its water during its early growth rather than via late comet deliveries and may relate to heat flow that helps power the magnetic field; however, the estimate relies on indirect methods with uncertainties, and further work is needed to refine the numbers.

via cnn.com|

#diamond-anvil-cell #dongyang-huang #earths-core

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

science-and-technology3 years ago•5 min saved

"Unveiling the Truth: Is Hydrogen a Metal?"

Physicists have long theorized that metallic hydrogen could exist under certain conditions, and recent research has made progress in creating it. By subjecting hydrogen to extreme pressures using a diamond anvil cell, scientists have observed the transition of hydrogen from a gas to a solid state, and potentially into a metallic state. Metallic hydrogen is believed to exist in the interior of Jupiter and could have applications as a superconductor. However, the challenges of achieving and studying metallic hydrogen make it unlikely to be used in industry anytime soon, leading researchers to focus on hydrides as a more feasible alternative.

via Livescience.com|

#diamond-anvil-cell #high-pressure-experiments #hydrogen