弹性库仑悬浮:为什么冰如此滑?
Elastic Coulomb-levitation: why is ice so slippery?
摘要:
有弹性的、密度较小的、极化的、热稳定的超固体表层润滑冰。分子欠配位通过O-O排斥缩短H-O键,延长O:H非键,这与O:H振动的低频高幅值和O-O双极化有关。较软的O:H弹簧与较强的分子偶极子相连,提供了使在冰上滑动的物体悬浮的力,如磁悬浮或气垫船。
英文摘要:
The elastic, less dense, polarized, and thermally stable supersolid skin lubricates ice. Molecular undercoordination shortens the H-O bond and lengthens the O:H nonbond through O-O repulsion, which is associated with low-frequency and high-magnitude of O:H vibration and a dual O-O polarization. The softer O:H springs attached with stronger molecular dipoles provide forces levitating objects sliding on ice, like Maglev or Hovercraft.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。