273 datasets found

We will investigate the structures of the high temperature (RT to 400K) phases of ammonium iodate, and the features that accompany these phase transitions. From our previous...

The proposed experiments will provide neutron total-scattering data for elucidating the nanoscale ordering of polar atomic displacements that underlie the commercially viable...

Oxide ion conductors are technologically important materials with applications in solid oxide fuel cells, oxygen sensors /pumps and membranes for oxygen separation. Two types of...

To determine the temperature dependence of the structures of new mixed and ionic conducting materials in the n = 2 ruddlesden-popper,mellilite and pyrochlore systems.

The BIMEVOXes are an important family of fast oxide ion conducting solids that exhibit very high conductivities at low and intermediate temperatures. A study of local ordering...

The cubic garnet-phase of Li7La3Zr2O12 is one of the most promising new electrolytes for use in an all-solid-state battery. We are proposing a total scattering experiment on...

Oxygen nonstoichiometry (d) of perovskite-type Ba0.5Sr0.5Co0.8Fe0.2O3-d (BSCF) was recently studied by combination of TGA, coulometric titration and neutron diffraction (ND)....

We propose to use neutron total scattering to characterise isocyanate (NCO-) orientations within the orientationally-disordered phase of AgNCO. The arrangement of NCO- ions in...

Apatites are currently of major interest in a number of fields: biomaterials, solid oxide fuel cells, catalysis, environmental remediation to name a few. Hydroxyapatite -...

The concept of an aristotype, or equivalently, the basic structure, that represents the highest symmetry crystal structure that can be attained, either experimentally, or...

Bismuth ferrite (BiFeO3) is the archetypal multiferroic material and as such has been copiously studied using a wide variety of techniques. Despite this, new structural and...

Hydrotalcites are anionic clays which have a variety of applications, including use as environmentally friendly catalysts and catalyst precursors. In this experiment we propose...

We have developed and demonstrated a novel process to overcome chemical reaction equilibrium constraints on an important reversible industrial chemical reaction by using...

3 days on POLARIS are requested to study three pyrochlore compositions in the Na2O●Bi2O3●TiO2 system that has been reported only once in the literature, without any...

This is a continuation proposal describing an "in situ" muSR experiment on hydrogen storage materials. For the two previous beam-time allocated for RB1510262 and RB1520259, we...

Discovery and development of advanced materials requires understanding and control of the relationship between composition, structure and function. Traditionally, design has...

Antimony substituted lanthanum niobium oxide is a recently developed proton conductor with potential use in fuel cells, gas sensors and steam electrolysers Our preliminary work...

The excellent high temperature properties of Ni-base superalloys are derived from the presence of fine precipitates of the intermetallic Ni3Al phase, termed gamma prime. The...

This proposal is concerned with investigating changes in the local structure of LaCoO3 at various temperatures. The arrangement of d-electrons in the transition metal, Co,...

Oxide ion conductors are key components in a number of technologically important applications. Our research programme on the development of new oxide ion conductors, using...