Results 21 to 30 of about 2,542 (183)
Experimental evidence for hydrogen incorporation into Earth’s core
Nature Communications, 2021 Based on diamond-anvil cell experiments and cutting-edge secondary ion mass spectrometry analyses, the authors here show that hydrogen may be an important constituent in the Earth’s core and also in the metallic cores of any terrestrial planet or moon ...
Shoh Tagawa +6 more
doaj +1 more source
Melting temperature of diamond and cubic boron nitride at 15 gigapascals
Physical Review Research, 2019 The melting temperature of diamond has not yet been experimentally measured under static pressure and these data for cubic boron nitride (cBN) are scarce.
Akun Liang +6 more
doaj +1 more source
Titanium boride equation of state determined by in-situ X-ray diffraction
Heliyon, 2016 The equation of state (EOS) of titanium boride, TiB2, was investigated by in situ X-ray diffraction in a diamond anvil cell and multianvil high-pressure apparatus.
Shigeaki Ono, Takumi Kikegawa
doaj +1 more source
High‐Pressure Synthesis of Quantum‐Stabilised Manganese Superhydride MnH7
Angewandte Chemie, EarlyView.Superhydrides are a rarity in transition metal hosts. Through high‐pressure, high‐temperature diamond anvil cell studies, the most hydrogen‐rich transition metal hydride, MnH7${\rm MnH}_7$ has been synthesised. Density functional theory calculations demonstrate that zero‐point energy stabilises the crystalline structure that MnH7${\rm MnH}_7$ adopts ...
Mikhail A. Kuzovnikov +10 more
wiley +2 more sources
AIP Advances, 2023 Much is unknown about how phase transitions link to micro-/nano-structures in high-entropy systems, especially under extreme pressure and temperature conditions.
Andrew D. Pope +7 more
doaj +1 more source
Reflectance of rhenium as a function of pressure in a diamond anvil cell [PDF]
Applied Physics Letters, 2022 We have measured the reflectance of rhenium in the visible region to pressures up to 100 GPa in a diamond anvil cell (DAC). By photographing the reflecting surface, we visually show that there are challenges to obtaining accurate values in a DAC for several reasons, including cupping of the diamonds and roughening of the surface with the increase in ...
Jing Song +2 more
openaire +2 more sources
X-Ray Diffraction under Extreme Conditions at the Advanced Light Source
Quantum Beam Science, 2018 The more than a century-old technique of X-ray diffraction in either angle or energy dispersive mode has been used to probe materials’ microstructure in a number of ways, including phase identification, stress measurements, structure solutions, and the ...
Camelia V. Stan +3 more
doaj +1 more source
Communications Chemistry, 2022 The chemical stability of alkali halides has caused them to be exploited as inert media in high-pressure, high-temperature experiments. Here, NaCl and KCl are unexpectedly found to react with yttrium, dysprosium and iron oxide in a laser-heated diamond ...
Yuqing Yin +11 more
doaj +1 more source
High-Pressure Laser Reactive Synthesis Within Diamond Anvil Cells of Carbon Allotropes from Methanol
CrystalsThis work targets a knowledge gap in the high-pressure decomposition of methanol, complementing prior moderate-pressure diamond anvil studies below 4 GPa and hyperbaric-pressure laser chemical vapour deposition (HP-LCVD) experiments below 0.01 GPa ...
Mohamad E. Alabdulkarim +1 more
doaj +1 more source
Studying weak interactions in crystals at high pressures: when hardware matters
Acta Crystallographica Section E: Crystallographic Communications, 2018 The quality of structural models for 1,2,4,5-tetrabromobenzene (TBB), C6H2Br4, based on data collected from a single crystal in a diamond anvil cell at 0.4 GPa in situ using two different diffractometers belonging to different generations have been ...
Boris A. Zakharov +3 more
doaj +1 more source