NICOP - Torsion of carbon and inorganic nanotubes: From fundamental studies to a nanotube gyro
Abstract
Our research group has studied the torsional behavior of carbon nanotubes and inorganic nanotubes of different materials, and discovered interesting phenomena, including torsional electromechanical quantum oscillations in carbon nanotubes [1,2], torsional stick-slip behavior in tungsten disulfide nanotubes [3], ultra-high torsional stiffness and strength of boron nitride nanotubes [4], and enhanced electromechanical response of carbon-boron-nitride nanotubes [5]. These works demonstrate that nanotubes could be used not only as torsional springs but also as sensors of rotational motion, and hence constitute the basis for the construction of ultraminiaturized gyroscopes for very small unmanned aerial vehicles, missiles and many other applications [6]. Preliminary simulations show that one critical parameter limiting the sensitivity of such sensors is the quality factor that stems from internal friction in these nanostructures, which in turn derives from the interlayer coupling.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2016
- Source ID
- N629091512022
Entities
People
- Ernesto Joselevich
Organizations
- Office of Naval Research
- United States Navy
- Weizmann Institute of Science