Deducing the properties of a new form of diamond

Earlier this year, amorphous diamond was synthesized for the first time using a technique involving high pressures, moderately high temperatures and a tiny amount of glassy carbon as starting material. A father-son team at ...

How fullerite becomes harder than diamond

Physicists have simulated the structure of a new material based on fullerite and single crystal diamond to show how this material can obtain ultrahigh hardness. This discovery offers potential conditions for obtaining ultrahard ...

Hard materials: Carbon nitride for tribological application

Carbon nitride is an attractive material for its expected hardness of the hypothetical compound β-C3N4. On the other hand, amorphous carbon nitride (CNx) exhibits a low friction coefficient under certain conditions, a property ...

The secret of nanoparticle packing in cement

Cement production is responsible for 5% of carbon dioxide emissions. If we are to invent a "green" cement, we need to understand in more detail the legendary qualities of traditional Portland cement. A research group partly ...

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