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Structure-property relationships in oxides containing select platinum group metals

Creator:

Gatimu, Alvin J.

Abstract:

Oxide materials exhibit a wide variety of structures and properties. In particular, transition metal oxides tend to be highly stable while exhibiting a wide range of properties that can be used for numerous applications. This work focuses on investigating how the structures’ of 4d and 5d transition metal oxides influences...

Resource Type:

Dissertation
Cation Substitution Effects in Complex Transition Metal Oxides

Creator:

Duell, Brett A.

Abstract:

Understanding structural evolution in solids as composition changes is essential to materials properties prediction. Such structure-properties relationships are the theme of solid state chemistry. Materials scientists and chemists have utilized an abundance of simple crystal structures to enhance understanding of chemical and structural origins of properties in materials for decades....

Resource Type:

Dissertation
Structure-Property Relationships of Disordered Electronic Materials : From Crystalline to Amorphous

Creator:

Surta, Todd Wesley, Jr.

Abstract:

Two perovskite materials (Bi0.5(A)0.5)(Sc0.5Nb0.5)O3, where A = K+ and Na+ were synthesized phase pure for the first time. Their structures were determined by indexing synchrotron X-ray diffraction data and subsequent combined Rietveld refinement on neutron and synchrotron X-ray diffraction data revealing significant disorder on the A-sites of these materials. A...

Resource Type:

Dissertation