題目：The surface mechanics of micro/nano curved surface body by Riemann geometry and the abnormal driving forces

報告人：王單博士（航空宇航學院航空航天交叉研究院）

時間：2017年11月14日（周二）10:10 AM

地點：明故宮校區A18-209會議室

主辦單位：科協、航空航天交叉研究院、航空宇航學院

報告摘要：

Inspired by the generalities of many spontaneous and abnormal phenomena at micro/nano scales, the author studied the interaction between curved surface body and particle by Riemann geometry. Based on the short-range interaction between particles, the interaction potential between highly curved surface body and particle near the surface is written as a polynomial function of curvatures. Further, the curvature-based driving forces exerted on the particle are deducted. It is confirmed the highly curved surface of curved surface body will induce driving forces, curvatures and the gradient of curvatures are the fundamental elements. With the curvature-based forces, the mechanism of abnormal phenomena in the process of oxidation and evaporation is clarified at micro/nano scales. The expansion of particles on the interface and the surface evolution at equilibrium state and non-equilibrium state are discussed with the curvature-based driving forces for particles on the curved surface body.

報告人簡介：

王單，講師，2017年在清華大學獲得博士學位。一直從事微納米尺度的反常驅動力相關研究工作，以第一作者發表SCI論文5篇。