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Neutron diffraction of amorphous calcium carbonate
Amorphous calcium carbonate (ACC) is regularly listed as one of the known calcium carbonate phases, first being identified in 1984. Although ACC is inherently unstable, it is a... -
Cation environments in lead-free glasses
BaO+ZnO containing glasses are being studied as an alternative to lead-based glasses because they exhibit excellent dielectric, thermal, optical and crystallisation properties.... -
Cation environment and the tellurite anomaly
We have recently shown that the anomalous behaviour of the Te-O coordination number, nTeO, for binary tellurite glasses is related to the presence of terminal Te=O bonds in... -
Disorder in substituted beta-tricalcium phosphate for waste immobilisation
We have a long established interest in the materials used for the immobilisation of nuclear waste from the domestic power industry and legacy waste from various defence... -
The Structure of Lead Tungstate-Phosphate Glasses
Lead tungstate phosphate glasses are of practical interest due to their electrochromic and photochromic properties, with a wide range of practical applications in smart windows,... -
The Nature Of Magnesium Substitution in Beta-Tricalcium Phosphate
We have a long established interest in the materials used for the immobilisation of nuclear waste from the domestic power industry and legacy waste from various defence... -
The structure and hydrogen bonding of poly(pyridobisimidazole) (PIPD)
PIPD is a polymer with unusual tensile and compressive strength. Inter and intramolecular H-bonding interactions are thought to be responsible for these properties. PIPD is also... -
Structure of novel silica-free titanate glasses
Silica-free barium titanate bulk glasses, containing lanthanide elements, show unusually high dielectric response and a high refractive index. These properties allow crucial... -
Structures of Gel Precursors of Nanoporous Materials
Our aim is to examine the structures of disordered gel precursors to nanoporous zeolites that are formed in the early stages of hydrothermal reactions. They are considered to be... -
Structural change of Ni-Zr amorphous alloy due to the deuterium absorption
It is well known that Ni-Zr amorphous alloys are highly resistant to pulverization due to the repetition of the hydrogen absorption and desorption unlike Ni-Zr crystalline... -
Characterisation of Zeolite Precursor Gels Over Wide Q Range
Our objective is to determine new structural information about the structure of amorphous silicate gels formed early in the synthesis of crystalline, microporous zeolites. This... -
Short range static and thermal disorder in glasses and crystals
We seek to use the temperature-dependence of the neutron correlation function to investigate the extent of static disorder in glasses and crystals, and also to investigate the... -
The Calcium Environment in Gallate Glasses
The environment of calcium in glasses is of widespread interest, and there has been a number of structural studies of calcium aluminate glasses. However, the experimental data... -
Probing the Earliest Stages of Zeolite Crystallisation
Our aim is to provide new data concerning the evolution of amorphous gel phases into crystalline inorganic materials to allow information about crystallisation mechanism of... -
Polyhedral connectivity in high lead silicate glasses
We have a long-established interest in the structural role of heavy-metal, lone-pair cations such as Pb in glasses. PbO can be incorporated to very high concentrations in oxide... -
Probing the structure of calcium silicates over a wide range of length scales.
Sol-gel derived calcium silicates are of great importance due to their ability to bond to bone and stimulate new bone growth. Diffraction has revealed the atomic-scale changes... -
P4Se3 polyamorphic glasses synthesised at high-pressure
PxSe1-x glasses cover almost entire composition range from pure Se to P0.84Se0.16. In addition, red phosphorus is usually also amorphous. The P4Se3 cage compound, situated in... -
The anomalous thallium borate anomaly
We have a continuing interest in the structural role of lone-pair cations in glasses. Thallium oxide behaves unusually in borate glasses, not only in terms of its own... -
The First Structural Characterisation of some Gallium Oxide Polymorphs
We propose to make the first detailed structural study of some polymorphs of gallium oxide that remain poorly characterised and yet have applications in catalysis and are used... -
Structure of Lead Germanate Glasses
We wish to perform a detailed and comprehensive study of the structure of lead germanate glasses, over a wide range in composition. Most structural studies of germanate glasses...
