Poisson’s ratio and porosity of carbon nanotube dry-spun yarns

The Poisson’s ratio of carbon nanotube (CNT) dry-spun yarns can be tuned over an extremely wide range of values that are up to 20–30 times higher than common solid materials. This is a result of the highly variable porosity of the yarn structure, from 90% in very low twist yarns to 40% in high twist...

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