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The Structural Effects of adding TiO2 to Calcium Phosphate Glasses.
This study will investigate the structural effect of adding titanium oxide to a calcium phosphate bioactive glass. We wish to understand the structural origins of the increased... -
Deuterium Site Determination in Quasicrystal Deuteride (Ti45Zr38Ni17)0.42D0.5...
We propose neutron diffraction experiments on quasicrystals (Ti45Zr38Ni17)1-xDx (x = 0 and 0.58). Ti45Zr38Ni17 absorbs and desorbs hydrogen atoms substantially. However the... -
Atomistic modeling of temperature-driven structural phase transition in ferro...
Ferroelectric materials, mainly Pb-containing, have widespread applications in our modern-day life, primarily used as sensors, actuator and memories. However challenges still... -
Local structure of the semiconductor caesium lead iodide
Caesium lead iodide is of interest both as a photoluminescent material whose optical properties may be tuned by creating nanoscale structures, and as an inorganic analogue of... -
Structural studies of bioactive yttrium doped alumino-silicate glasses.
Yttrium doped glasses are of considerable interest due to their potential for use as in-vivo radioactive beta- emitters for localised treatment of liver cancer and other... -
Long-Range and Local Structures of New Pyrochlores and Fluorites
We propose to study by total neutron scattering the structures of some complex oxide materials prepared by new hydrothermal routes in order to construct structural models... -
Structure-Property Relationships in Polymorphs of Mn(CN)2
We will determine the atomic and magnetic structure of two polymorphs of manganese cyanide, Mn(CN)2, which exhibit negative thermal expansion (NTE). The two forms are related;... -
Test experiment: Neutron diffraction on helium in silica
We request 3 days of beamtime on GEM to attempt to perform neutron diffraction on helium inside vitreous SiO2. Significant amounts of helium can be dissolved into the glass... -
Effect of Composition on Local Environment of Sulphate in Silicate Glasses
We will study the effects of changes in composition and structure of alkali silicate and alkali-alkaline earth silicate glasses on its sulphate incorporation capacities. Total... -
The Nature Of Zinc 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... -
Mercury sulphide dimorphism in liquids and glasses
A waste majority of crystals exists in several polymorphic forms in different domains of the P,T-diagram. Liquids and glasses also exhibit polyamorphism and the question remains... -
Structure of niobium phosphate glasses
Niobium is one of the candidates for causing strong non-linear optical properties in oxide glasses. Recently, Raman gain experiments on niobium phosphate glasses were quite... -
A structural study of titanium tellurite glasses
Tellurite glasses exhibit strong non-linear properties which are related to the asymmetric environment of the Te atom. The non-linear optical effects are strongest when the Te... -
Investigation of the phases formed during the conversion reaction of the C-ba...
FeF2 is a conversion reaction material that undergoes a reaction with lithium: FeF2+2Li++2e-<->2LiF+Fe, which results in a high theoretical capacity, 571 mA/g.... -
Structural Studies of Complex Mixed-Metal Pyrochlore and Spinel Oxides
Our objective is to determine structural models for some complex, mixed-metal oxide phases that are as complete as possible using analysis of PDFs produced from total neutron... -
Developing a model for tellurium coordination change in glasses
We wish to better understand the evolution of the tellurium environment in glasses with the addition of modifier oxides. The aim is to relate these structural changes to the... -
Null Isotope Study of Lithium Borogermanate Glasses - continuation
Alkali borogermanate glasses are topologically complex, in that [BOn] (n = 3, 4)and [GeOn] (n = 4, 5, 6) polyhedra can coexist. Equilibrium between these structural units has... -
Evaluation of inelasticity effects in diffraction
For total diffraction measurements using neutrons it is important to correct the data for inelasticity effects, especially for samples containing light atoms. Conventionally... -
A Structural Study of Alkaline-Earth Tellurite Glasses.
We wish to better understand the interaction between the alkaline earth modifiers and the tellurite glass network. The aim is to relate structural changes in the glasses with... -
Search for the Structural Origin of the Intermediate Phase
The object of this experiment is to search for the structural origin of the intermediate phase by making careful measurements of the structure of glassy Ge-Se which is a...