Effects of Vertical MHD Flows and Cell Rotation on Surface Chirality in Magnetoelectrodeposition

9th International Symposium on Electromagnetic Processing of Materials

材料科学;物理学

Mogi, I.^1 ; Morimoto, R.^2 ; Aogaki, R.^3 ; Takahashi, K.^1

IMR, Tohoku University (Katahira, Aoba-ku, Sendai

980-8577, Japan^1

SAITEC (Kawaguchi, Saitama

333-0844, Japan^2

Polytechnical University, Sumida-ku Tokyo

130-0026, Japan^3

关键词: Chiral surface;    Magnetoelectrodeposition;    MHD flow;    Micro-MHD;    Rotational directions;    Surface chirality;    Tube walls;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/424/1/012024/pdf
DOI  :  10.1088/1757-899X/424/1/012024

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The combination of vertical MHD flows and micro-MHD vortices can produce chiral surfaces in magnetoelectrodeposition (MED) of metals. Here we show two effects on the chiral surface formation in MED of copper. The first one is the effect of perturbation of vertical MHD flow using a tube wall around the electrode. The MHD flow penetrated into the tube and affected the chiral surface formation, as a result, the surface chirality depended on the height of wall. The other is the effect of rotation of electrochemical cell in magnetic fields. The rotational direction allowed the control of surface chirality.