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Updated: Jul 12, 2026

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从多壁碳纳米管中实现的低摩擦纳米级线性轴承

Cumings1, Zettl

  • 1Department of Physics, University of California, Berkeley, CA 94720, USA, and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

Science (New York, N.Y.)
|August 1, 2000
PubMed
概括

多壁碳纳米管的受控望远镜延伸可以创建超低摩擦纳米级轴承和纳米弹. 这些碳结构呈现出近乎完美的,无磨损的表面,在重复使用后没有原子尺度的疲劳.

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Rolling Resistance01:21

Rolling Resistance

When a solid cylinder rolls steadily on a rigid surface, the normal force applied by the surface on the cylinder is perpendicular to the tangent at the contact point. However, since no materials are entirely rigid, the surface's reaction to the cylinder involves a range of normal pressures.
For instance, imagine a hard cylinder rolling on a comparatively soft surface. The cylinder's weight compresses the surface beneath it. As the cylinder moves, the material in front of it slows down due to...