Schematic construction of flanged nanobearings from double-walled carbon nanotubes

作者：Shenai Prathamesh Mahesh; Zhao Yang^*

来源：Nanoscale, 2010, 2(8): 1500-1504.

DOI：10.1039/c0nr00036a

The performance of nanobearings constructed from double walled carbon nanotubes is considered to be crucially dependent on the initial rotational speed. Wearless rotation ceases for a nanobearing operating beyond a certain angular velocity. We propose a new design of nanobearings by manipulation of double walled carbon nanotubes leading to a flanged structure which possesses a built-in hindrance to the intertube oscillation without obstructing rotational motion. Through blocking the possible leakage path for rotational kinetic energy to the intertube oscillatory motion, the flanged bearing lowers its dissipative tendency when set into motion. Using molecular dynamics, it is shown that on account of its distinctive structure, the flanged bearing has superior operating characteristics and a broader working domain.

• 出版日期2010
• 单位南阳理工学院