Tuesday, March 5

Springs made from rusty metal glass might power nanorobots


The majority of metals oxidise, or rust, when exposed to air, which usually compromises them, however a type of metal glass rather gets more springy

By Alex Wilkins

Tiny springs made from metal glass

Fucheng Li et al

Tiny tubes of rusty glass are remarkably springy, which might show helpful in powering nanorobotic gadgets.

A lot of metals oxidise when left in the air– when this occurs in iron, it is called rusting– which can alter their homes, such as making them more breakable or less thick.

Yong Yang at City University of Hong Kong and his coworkers discovered that when they oxidised copper and zirconium nanotubes of metal glass, which …

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