Video: Researchers developed a structured nanomaterial that is stiff and light like corrugated cardboard but only tens of nanometers thick. ↓↓More info and references below↓↓ Corrugated cardboard is a classic example of a stiff yet lightweight material. Now researchers have developed a sandwich structure similar to that of corrugated cardboard at the nanoscale. The “nanocardboard,” made from an ultrathin film of aluminum oxide, is more than 10,000 times as stiff as a solid sheet of aluminum oxide with the same mass, and it can recover its shape after repeated bending. The team thinks the material could be used for a variety of aerospace and microrobotic applications.

Aluminum oxide nanocardboard is strong, yet bendable

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Researchers developed a structured nanomaterial that is stiff and light like corrugated cardboard but only tens of nanometers thick. ↓↓More info and references below↓↓ Corrugated cardboard is a classic example of a stiff yet lightweight material. Now researchers have developed a sandwich structure similar to that of corrugated cardboard at the nanoscale. The “nanocardboard,” made from an ultrathin film of aluminum oxide, is more than 10,000 times as stiff as a solid sheet of aluminum oxide with the same mass, and it can recover its shape after repeated bending. The team thinks the material could be used for a variety of aerospace and microrobotic applications.

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