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Carbon Nanotubes

Carbon Nanotubes. ECIV 303 Daniel Baker Nate Tipora Whitney Weston. Properties. Highest tensile strength of any material EVARRR!!!! 63 GPa compared to .4 GPa (structural steel ASTM A36) 1/50,000 th the width of a human hair 132,000,000:1 possible length to diameter ratio

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Carbon Nanotubes

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  1. Carbon Nanotubes ECIV 303 Daniel Baker Nate Tipora Whitney Weston

  2. Properties • Highest tensile strength of any material EVARRR!!!! • 63 GPa compared to .4 GPa (structural steel ASTM A36) • 1/50,000th the width of a human hair • 132,000,000:1 possible length to diameter ratio • Up to 18 cm in length • Made up of hexagonal structures that can be linked to form strands or sheets.

  3. Current Applications • Cement Based Foam Concrete Reinforced by Carbon Nanotubes • Increases foam concrete’s compressive strength by up to 70% making it comparable to conventional concrete at approximately 2800 psi • 50% less dense than conventional concrete with an average density of under 70 lb/ft^3 • Easy to pour as a slurry • Carbon nanotubes make up 0.05% of the mix by mass. • Reduce heat conductivity between 12-20% • Used in resins, which makes composite materials 20-30% stronger. (Chemically bond to epoxy) • Found in wind turbines, hunting arrows, and surfboards.

  4. Potential Applications Water Purification Removal of arsenic, fluoride, heavy metals, and toxic organic components Super-bridges May be used in bundles as cables for suspension bridges Could increase the main span of a bridge by a factor of approximately three

  5. SPACE ELEVATOR

  6. References • Belluci, S. (19 January 2005). "Carbon nanotubes: physics and applications". Physica Status Solidi (c)2 (1): 34–47. doi:10.1002/pssc.200460105 • Wang, X.; Li, Q.; Xie, J.; Jin, Z.; Wang, J.; Li, Y.; Jiang, K.; Fan, S. (2009). "Fabrication of Ultralong and Electrically Uniform Single-Walled Carbon Nanotubes on Clean Substrates". Nano Letters9 (9): 3137–3141. doi:10.1021/nl901260b • Picture1-THE JOURNAL OF NUCLEAR MEDICINE • Picture2-2006-11-15 Original uploader was Booyabazooka at en.wikipedia • Carbon Nanotubes • http://en.wikipedia.org/wiki/Carbon_nanotube • Introduction to Nanotechnology • http://nanogloss.com/nanotubes/what-are-the-physical-properties-of-carbon-nanotubes/

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