The experimental research will combine solubility studies at 100-250C with hydrothermal diamond-anvil cell
experiments up to 600 and synchrotron X-ray spectroscopy.
The team used a diamond-anvil cell to bring the noble gases helium, neon, argon, and xenon to more than 100,000 times the pressure of Earth's atmosphere (15-52 gigapascals), and used a laser to heat them to temperatures ranging up to 50,000 degrees Fahrenheit (about 28,000 degrees Kelvin).
The conditions simulated by the team's laser-heated diamond-anvil cell indicate that this stellar helium should be more opaque (and conducting) than previously expected and this opacity could slow the cooling rates of helium-rich white dwarfs, as well as affect their color.
Vogt reported that the result is counter-intuitive in that the pressure--applied hydrostatically in a diamond-anvil cell
and typically exceeding 1 GPa (more than 10,000 atmospheres)--can cause the cavities within natrolite to expand in volume.
The effect of pressure on partitioning of Ni and Co between silicate and iron-rich metal liquids; a diamond-anvil cell
They combined ingredients for this so-called abiotic synthesis of methane, the main ingredient in natural gas, in a diamond-anvil cell
and monitored in-situ the progress of the reaction.
and his colleagues loaded a microscopic sample of solid sodium into a diamond-anvil cell
, a viselike device capable of generating extreme pressure.
Piermarini, An Optical Fluorescence System for Quantitative Pressure Measurement in the Diamond-Anvil Cell
First, they injected a small sample of nitrogen gas into a disk-shaped chamber inside a diamond-anvil cell
The team's pressure-based technique involves a diamond-anvil cell
that can subject materials to pressures thousands or even millions of times greater than external atmospheric pressures.
Experiments will be performed using cutting-edge techniques such as diamond-anvil cells
and high-power heating lasers together with concurrent complementary characterization techniques, such as Raman spectroscopy or x-ray diffraction in synchrotron radiation facilities.
Although experiments at room temperature in small containment chambers made of diamond, called diamond-anvil cells
, brought hydrogen stably to pressures exceeding 2 million atmospheres, evidence of electrical conductivity never turned up-leaving scientists both frustrated and perplexed.