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carbon nanotube array

Ramathasan Thevamaran's picture

Independent control of dynamic material properties by exploiting structural hierarchy and intrinsic structural gradients

Achieving high damping and stiffness is challenging in common materials because of their inter-dependent scaling. Controlling extreme mechanical waves requires synergistically enhanced damping and stiffness. We demonstrate superior damping and stiffness in vertically aligned carbon nanotube (VACNT) foams that are also independently controllable by exploiting their synthesis-tailored structural hierarchy and structural gradients. They exhibit frequency- and amplitude-dependent responses with dramatically tunable dynamic stiffness while maintaining constant damping.

Controllable viscoelastic behavior of vertically aligned carbon nanotube arrays

Controllable viscoelastic behavior of vertically aligned carbon nanotube arrays

 

Kilho Eom, Kihwan Nam, Huihun Jung, Pilhan Kim, Michael S. Strano, Jae-Hee Han, Taeyun Kwon

 

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