2005 年 69 巻 2 号 p. 257-262
A new fabrication method of composite films by use of an electrodeposition under a high magnetic field is proposed here. This method enables dispersed particles in a matrix film to distribute in a honeycomb pattern or align along the grooves scratched on a cathode, which is not available in conventional composite plating methods. That is, this tailor-made film provides a new function in composite materials. The formations of various distribution patterns attribute to the micro-eddy generated in the vicinity of a particle or the scratched portion on a cathode by Lorentz force caused by a distorted electrolytic current and an applied magnetic field. The flow of the micro-eddy aligns the particles to be embedded in electrodeposits in a particular pattern. It is noticed that the imposition of a high magnetic field enhances Lorentz force to induce the appreciable micro-eddy in the electrolytic solution even under a small distorted electrolytic current.