Advanced total scattering analysis of disordered and nano-crystalline materials

Synthesis of Nano - Crystalline Γ - Tial Materials

One of the principal problems with nano-crystalline materials is producing them in quantities and sizes large enough for valid mechanical property evaluation. The purpose of this study was to explore an innovative method for producing nano-crystalline γ-TiAl bulk materials using high energy ball milling and brief secondary processes. Nano-crystalline powder feedstock was produced using a Fritsc...

Nano-/Microporous Materials: Crystalline Metal-Chalcogenide Superlattices

This article describes the recent research progress in the field of crystalline metal-chalcogenide superlatticescontaining tetrahedron-shaped nanoclusters as building units. With the development of new synthetic strategies and structuralconcepts, new clusters that are members of three series of tetrahedral clusters (i.e., supertetrahedral clusters, pentasupertetrahedralclusters, and...

Advanced Sintering of Nano-Ceramic Materials

Neutron scattering studies of disordered carbon anode materials

Carbon-based anodes show many promising properties in lithium-ion rechargeable batteries. So-called ‘disordered carbons’ are characterized by a substantial amount of residual hydrogen, and exhibit large Li uptake capacities. We have employed a variety of neutron scattering techniques, coupled with computer simulations, to study the composition, local atomic structure, and vibrational dynamics o...

Theory of diffusive light scattering from disordered materials

1 — (cosO) Abstract. It is suggested that the measurement of the angular distribution of light transmitted through a thick slab of diffusively scattering material may provide information about the nature of the local scattering events. Monte Carlo simulations indicate that the angular distribution depends on eie* where and e* are the true and transport mean free paths, respectively, and this de...