Atomic packing and short-to-medium-range order in metallic glasses

Article Abstract:

A combination of state-of-art experimental and computational techniques is used to resolve the atomic-level structure of amorphous alloys and metallic glasses (MGs). The analysis of a range of short-range order as well as the nature of the medium-range order provides a reality check for the atomic structural models and has implications for understanding the nature, forming ability and properties of MGs.

X-rays, X-ray diffraction

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A hard look at glass

Article Abstract:

A detailed study on the structures of two glassy materials is presented. The findings may help to explain the reason as to why the molecules in the materials that form glasses fail to find the lowest-energy arrangement when cooled to low temperatures, and this should aid the understanding of these scientifically and technologically important materials.

Topology, Amorphous substances, Amorphous materials, Algebraic topology

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A new order for metallic glasses

Article Abstract:

The three-dimensional structures of metallic glasses, which are peculiar materials that lack the long-range order of normal, crystalline metals, are determined. The experiments and simulations have shown that, on the nanoscale, clusters of atoms interconnect in metallic glasses to form highly structured superclusters.

Superclusters

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