Any material turns into glass. Free Technical Library News

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Any material turns into glass

24.11.2012

Scientists from the universities of Bristol and Düsseldorf have discovered a new way to make glass by controlling the arrangement of atoms in the material's structure.

Glass is a special state of matter: it has the mechanical properties of a solid and the amorphous structure of a liquid. As early as 1952, Sir Charles Frank of the University of Bristol argued that the structure of glass is not completely disordered like a liquid, but rather must be filled with structural features such as square antiprisms. Although such structural features have recently been discovered in experiments with computer simulations of glassy materials, it has not yet been understood what role they play in the transformation of liquid into glass.

Working with a virtual model, British and German scientists created a new type of glass: they forced the atoms of a nickel-phosphorus alloy to form special polyhedra, which eventually deprived the liquid of fluidity and turned it into glass. In other words, scientists have found a way to create glass not by cooling the melt, but by changing the structure of the material. Thus, by manipulating structures of various shapes, it is possible to transform a liquid or melt into solid glass with desired properties.

The new technology allows you to control the substance, maintaining it in a liquid state or turning it into glass with programmed properties. This allows you to create completely new products, for example, glasses with metal lenses - light and very durable. In addition, opportunities are opening up for the production of chalcogenide glasses, which can serve as a very reliable and durable storage of information.

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The full layout of the probe and its scientific capabilities will be finalized within the next 18 months, Dougherty said.

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