Not all of nature's layered structures are tough as animal shells and antlers, study finds
Nacre — the iridescent part of mollusk shells — is a poster child for biologically inspired design. Despite being made of brittle chalk, the intricately layered microstructure of nacre gives it a remarkable ability to resist the spread of cracks, a material property known as toughness.
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Enlace: Not all of nature’s layered structures are tough as animal shells and antlers, study finds
