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A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction
Published on: January 26, 2016
A novel gravity-assisted automatic docking device for studying diffusion in liquid metal melts assisted by a strong
Ying Liu1, Wenhao Lin1, Bangfei Zhou1
1State Key Laboratory of Advanced Special Steel and Shanghai Key Laboratory of Advanced Ferrometallurgy and School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China.
Abstract:
A novel gravity-assisted automatic docking (GAAD) method is presented for the study of interdiffusion processes in liquid Al-Cu melts. A novel GAAD device was designed to be suitable in a strong static magnetic field (SSMF) with a bore size of 50 mm. Energy dispersive x-ray spectroscopy was used to quantitatively analyze the concentration profiles of diffusion capillaries. The interdiffusion coefficient (DAlCu) was measured by applying Fick's second law. The combination of SSMF and GAAD made the original diffusion interface be easily determined and not be oxidized. The melt convection was completely reduced to reach the pure diffusion state. The performance of this GAAD measurement method assisted by a SSMF was successfully verified by a diffusion experiment in an Al-Cu melt.

