carbon nanotube
KAR-bun NAY-oh-toob
ˈkɑːrbən ˈneɪnoʊtuːbListen
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Dictionary meaning
a cylindrical nanostructure formed by rolling a single sheet of graphene into a seamless tube with a diameter on the order of nanometres and a length potentially reaching centimetres, giving an extraordinary aspect ratio; carbon nanotubes exist as single-walled structures or as nested concentric tubes termed multi-walled nanotubes, and their electronic properties range from metallic to semiconducting depending on the chiral angle at which the graphene sheet is rolled; their tensile strength exceeds that of steel by orders of magnitude, and they exhibit outstanding thermal conductivity, making them candidates for use in composite materials, transistors, energy storage, and structural reinforcement
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