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Study of cation disorder, oxygen vacancy ordering and proton sites in La2-xNd...
On the basis of X-ray diffraction the oxygen deficient La2-xNdxCe2O7 series displays a transition from disordered fluorite to the C-type superstructure in which the cations... -
Programme Access Rosseinsky/Claridge
This dataset has no description
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Structural determination of non-stoichiomentric phases Li2+yND for 0<y<1
In a series of in situ neutron diffraction measurements from deuterium up-take in Li3N, the present authors have identified a novel non-stoichiometric 'quasi-imide' of... -
Programme Access Rosseinsky
This dataset has no description
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Average structures of new functional oxides - POLARIS
The proposal addresses the average structures of new lead-free ferroelectrics, low-temperature ionic conductors and mixed conductors which are candidate solid oxide fuel cell... -
Investigation of the phase transition in La2Mo2O9 from structural and conduct...
There has been significant interest in the oxide ion conducting material La2Mo2O9 as a new electrolyte after initial reports of conductivity as high as that of YSZ at lower... -
Defect structure in W/Ln and Ta/Ln di-substituted bismuth oxide based solid e...
The stability regime of the oxide ion conductor delta-Bi2O3 is limited to a narrow temperature range just below its melting point. Substitution of Bi3+ by a variety of isovalent... -
Investigating the correlation between the order-disorder transition in YSr2Cu...
The effect of order-disorder transitions on the conductivity of oxide ion conducting electrolytes has attracted significant attention in the literature. In contrast there has... -
In-situ investigations of the structure-property relationship in lithium inse...
This proposal details the use of an in-situ cell optimised for use on the POLARIS beamline to study the structure-property relationships in the defect perovskite lithium... -
The intermediate stages of hydrogen disorder to order phase transitions in ice
In recent years, our team has discovered three new phases of ice: ices XIII, XIV and XV. On the basis of calorimetric data and some limited diffraction data collected on GEM we... -
Structural investigation of nano sized CeO2 and ZnO systems
We will investigate bulk and nano size ceria and zinc oxide prepared by solvothermal methods to determine the defect chemistry associated with these solids. We will use neutron... -
Effect of alloying on the misfit of Ni-Ni3Al-Ni3V alloys
Ni-base superalloys have long been used in high temperature applications, including the high-demand environments of the high pressure turbines in jet engines. The remarkable... -
Order-Disorder Transitions in Layered Tellurides
We have prepared a new series of layered tellurides Cr2-xInxGe2Te6, containing 2D ordered arrays of (Cr,In) cations and (Ge-Ge) pairs. Recent neutron measurements reveal indium... -
In-situ hydration and total scattering studies of Ba2In2-xMxO5 (M = Y and Ga)...
Motivated by the goal of improving the proton conduction in the brownmillerite Ba2In2O5 we are investigating the role of isovalent substitution at the indium sites. In... -
Oxygen mobility in the defect perovskite Sr3SbO5.5
We propose to use Polaris to record powder neutron diffraction data for the oxygen deficient double perovskite Sr3SbO5.5 as a function of temperature to establish the... -
Structures of New Ternary Iridates Prepared using Hydrothermal Chemistry
We propose to measure powder neutron diffraction data from some new iridium oxides prepared using mild hydrothermal reaction conditions. Although we have some structural models... -
Li3-x-yMxN (M=Cu, Co, Ni) anode materials via novel microwave routes; defect ...
Lithium ternary nitrides are emerging as promising anode materials in lithium ion batteries. In this application we propose a 1 day experiment on POLARIS to determine the... -
Ternary Molybdenum Carbonitrides for anion transfer catalysis; Structure, Mob...
We are undertaking a study of the mobility of nitrogen and carbon atoms in metal carbo-nitride catalysts, specifically in the cobalt molybdenum system: Co-Mo-C-N (where... -
In-Situ Study of Self-Recovery in MAX Phases
MAX phases exhibit a unique combination of the characteristics ofboth ceramics and metals coupled with an unusual combination of mechanical, electrical and thermal properties.... -
Increasing Oxide Ion Vacancy Concentration Bi2O3 Based Electrolytes through d...
Recent research has shown that bismuth oxide based electrolytes are viable components in solid oxide fuel cells. Di-substitution of Bi3+ by an isovalent and a subvalent cation...
