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The Study of Low Surface Energy Fluorocarbon Coatings with Fluor Content Being Lower LIU Xiu-sheng1,ZHONG Ping1,GAO Wan-zhen1 (1.Wuhan Research Institute of Materials Protection, Wuhan 430030 ,P. R. China) 摘要:A kind of low surface energy fluorocarbon coatings from the synthesized fluoro-acrylic resin was developed.The molecule orientation principle of nonpolar and polar functional groups......
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Differences of element distribution between free and wheel side surface of NdFeB/α-Fe ribbons査五生,刘锦云,宋天秀,王正云College of Material Science & Engineering,Xihua University摘 要:energy dispersive spectrometry (EDS) and X-ray diffrac-tion (XRD).Because of the centrifugation,a segregation of B,Fe,and Nd concentrations was observed at the cross section.After......
Differences of element distribution between free and wheel side surface of NdFeB/α-Fe ribbons査五生,刘锦云,宋天秀,王正云College of Material Science & Engineering,Xihua University摘 要:energy dispersive spectrometry (EDS) and X-ray diffrac-tion (XRD).Because of the centrifugation,a segregation of B,Fe,and Nd concentrations was observed at the cross section.After......
was investigated. The molar Gibbs free energy function of mechanically activated samples was calculated from the structural defects such as amorphization, dislocation and surface energy. According to the molar Gibbs free energy function, the equilibrium temperature of mechanical reduction of silver oxide milled for 21 h was estimated at about 304 K. Consequently, at this temperature silver oxide......
engine (HFPE) were introduced. The basic vibration equation of free piston assembly (FPA) was established based upon the energy conversion between the injected fuel and the friction together...Asymmetric vibration characteristics of two-cylinder four-stroke single-piston hydraulic free piston engineREN Hao-ling(任好玲), XIE Hai-bo(谢海波), YANG Hua-yong(杨华勇), GUO Jian-fei(郭剑飞) (State Key......
-copper alloy; electrochemical formation; free energy of formation; diffusion coefficient 1 Introduction Alloys of rare earth Ho with other metals (Fe, Co, Ni, Cu, etc) possess electrical, magnetic... chlorides. The free energies of formation for the intermetallic compounds of Ho-Cu systems, the diffusion coefficients and the diffusion activation energy of Ho in the alloy are determined. 2......
. The planes of fracture are occupied by free water, which cause water to have increasingly prominent lubricating effects on fracture surface sliding. On the macro performance, the apparent softening... J. Cent. South Univ. (2018) 25: 1447-1463 DOI: https://doi.org/10.1007/s11771-018-3839-z Mechanical properties and energy mechanism of saturated sandstones NIU Shuang-jian(牛双建)1, 2, 3, GE Shuang......
, Changsha 410083, China) Abstract: The surface energy, atomic geometry and electronic structures of Al(100), (110) and (111) free surfaces were calculated using the method of supercell and the first-principles pseudopotential plane waves within generalized gradient approximation. According to the calculated surface energy, the structural stability of Al free surfaces from strong to weak......
and Department of Physics,University of Science and Technology of China, Hefei 230026, China) Abstract:The investigation of influence of surface effects on the energy spectra of electrons is essential... impinging on a solid or escaping from it suffer losses in the surface layer. The energy loss spectra therefore have contributions from surface excitations. The role of surface excitations is characterized......