水之魂 (The Soul of Water)分享 http://blog.sciencenet.cn/u/ecqsun 《键合弛豫》《计量谱学》《氢键规则》《水合反应》

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冰为什么自润滑? 软声子和电悬浮

已有 1062 次阅读 2019-10-11 14:08 |个人分类:水之魂|系统分类:科普集锦

From Ice Superlubricity to Quantum Friction: Electronic Repulsivity and Phononic Elasticity

Friction.pdf


  1. Molecular undercoordination induced O:H-O relaxation and nonbonding electron polarization endowed ice surface with supersolidity that is elastic, gel-like, hydrophobic, less dense, and thermaly more stable. 

  2. O:H elongation lowers its phonon frequency and high vibration magnitude, which ensures the extraordinary adaptivity and recoverability to sliding deformation.

  3. Nonbonding electron polarization makes H2O molecules localized dipoles to oppose the sliding contact force , mimicking magnetic levitation and hovercraft. 

  4. Coulomb repulsion and elastic adaptivity reconcile the superlubricity, superhydrophobicity, superfluitity, and supersolidity at contacting interfaces.

  5. Compression melting and friction heating are insufficiency. 


also, 《氢键规则六十条》高等教育出版社, 08/2019




http://blog.sciencenet.cn/blog-73032-1201519.html

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1 刘全慧

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