New ultrahard diamond glass synthesized

Carnegie's Yingwei Fei and Lin Wang were part of an international research team that synthesized a new ultrahard form of carbon glass with a wealth of potential practical applications for devices and electronics. It is the ...

Sodium-cooled fast reactors and the future of nuclear energy

A new paper by Technical Director of the Generation IV International Forum, Gilles Rodriguez, published in the open-access journal EPJ Nuclear Sciences & Technologies, provides a comprehensive review of joint research into ...

Melting glasses from unmeltable compounds

Glasses are an indispensable part of everyday life. One of the most important reasons for this is that glass objects can be manufactured almost universally and inexpensively in a wide variety of shapes and sizes using their ...

Glacial melt in High Mountain Asia accelerating as summers warm

Glaciers in High Mountain Asia have been melting more quickly in recent years due to rising summer temperatures. Glacier melt prevails now even in areas where glaciers were previously growing, a team of researchers led by ...

Asdex Upgrade experimental facility generates its first plasma

For 30 years, the Asdex Upgrade has been paving the way for a fusion power plant that generates climate-neutral energy. The tokamak fusion plant was repeatedly expanded and improved during this time. Not least for this reason, ...

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Melting

Melting, or fusion, is a physical process that results in the phase change of a substance from a solid to a liquid. The internal energy of a substance is increased, typically by the application of heat or pressure, resulting in a rise of its temperature to the melting point, at which the rigid ordering of molecular entities in the solid breaks down to a less-ordered state and the solid liquefies. An object that has melted completely is molten. Substances in the molten state generally have reduced viscosity with elevated temperature; an exception to this maxim is the element sulfur, whose viscosity increases with higher temperatures in its molten state.

Some organic compounds melt through mesophases, states of partial order between solid and liquid.

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