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High pressure behaviour of sulfuric acid tetrahydrate
Our previous work on sulfuric acid tetrahydrate (SAT) identified a monoclinic high-pressure polymorph, which forms at 5.35 kbar when the tetragonal low-pressure phase is warmed... -
A high pressure structural study of the charge transfer complexes trimethylam...
We propose a high-pressure powder neutron diffraction study of the archetypal donor-acceptor complexes (CD3)3N...I2 and (CD3)3N...ICl . These are the simplest structurally... -
The hypersensitivity of the water phase diagram to ammonium fluoride doping
Water displays a highly complex phase diagram that is key to a range of critical processes, from the evolution of icy moons to that of the Earth's hydrosphere and even of life... -
PTM dependant polymorphism of acrylamide
Our recent X-ray and single crystal studies have shown that acrylamide can undergo different phase transformations depending on the pressure transmitting medium used i.e.... -
High-pressure, high-temperature studies of energetic materials - RDX and HMX
One of the aims of this proposal is to quench to ambient pressure a metastable form of the widely used secondary explosive RDX. This is formed above ~4.5 GPa and 448 K but is... -
Neutron Total Scattering of Crystalline Materials in the Gigapascal Regime
Over the past few years, extensive developments have been made in the use of neutron diffraction for structural studies of liquids and amorphous materials at high pressure.... -
Pressure-induced high-spin low-spin transition in MnS2 and MnTe2
Pressure induced high-spin (HS) to low-spin (LS) transition in MnS2 was speculated by Chattopadhyay and von Schnering more than twenty years ago from their high pressure X-ray... -
L-Alanine above 10 GPa
Recently we studied L-alanine to 9.85 GPa. This is the highest pressure for which structural data are available for any organic system larger than methane. The results enabled... -
Structural transformations in pure and Ba-doped PbSc$_{0.5}$Nb$_{0.5}$O$_3$ u...
Lead scandium niobate (PSN) belongs to the class of perovskite-type relaxor ferroelectrics, which are among the key functional materials. Due to their structural complexity, the... -
Structure of hot dense liquid carbon dioxide
We propose to study the structure of liquid CO2 by neutron diffraction under high pressure and high temperatures to 6 GPa / 800 K. Carbon dioxide belongs to the most fundamental... -
Elemental Boron synthesized in supercritical metallic solvents at high pressu...
Our recent high (P,T) developments at PEARL beamline will allow us to study the kinetic and thermodynamic behavior of boron 11B under pressures up to 12 GPa and temperatures up... -
Diamond anvil cell for a combined X-ray and neutron diffraction study of glycine
High pressure is a powerful thermodynamic tool, like temperature, to vary the properties and structure of materials. X-ray and neutron diffraction can be used to measure certain... -
Incompressibility, crystal structure and Anderson-Grüneisen parameter of orth...
The ambient-pressure Pnma phase of NiSi is a technologically important material used to form contacts in microelectronics. Recently we carried out the first study of NiSi at... -
Strategic programme
This dataset has no description
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A high pressure study of the alpha-form of acetylene dicarboxylic acid dihydrate
We propose to investigate changes that occur in acetylene dicarboxylic acid dihydrate as a function of pressure. This system, for which there is a general paucity of structural... -
Searching for the missing phase of SrTiO3; commissioning a new cryogenic pres...
Generating pressure above 1GPa for neutron diffraction typically requires the use of a Paris-Edinburgh press. Whilst the presses operate very reliably at ambient temperature,... -
High Pressure Behaviour of Benzene
The interactions between benzene molecules in the solid phase is of fundamental interest. Benzene is often used as a model system for structure prediction methodologies and... -
High-pressure and high-temperature studies of CL-20, HMX, and TATB
The aims of this proposal are to explore the high-pressure, high-temperature behaviour of 3important energetic materials - CL-20, HMX and TATB. These experiments are expected... -
High pressure tests
This dataset has no description
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High temperature setup commissioning
This dataset has no description
