Abstract
To challenge the significant reduction of manufacturing cost of Ti thin sheet or foil in the future, manufacturing of Ti foil by electrodeposition route was studied with emphasizing on factors affecting quality of the foil and separability from Mo cathode. Current density was one of the strong factors affecting soundness of deposited Ti foil and its separability from the cathode. Electrolyte bath temperature also affected soundness and separability of deposited Ti foil. Separability was closely related to interdiffusion distance of Ti and Mo, that is, shorter diffusion distance, which was brought by low temperature and low current density, led to good separability as well as good surface quality. By reflecting above knowledge, post card size Ti foil of around 0.1 mm in thickness was successfully obtained. It had good quality and could be separated from the cathode by hand. O and Fe contents were drastically decreased by this process.
Highlights
Titanium foil is used for a variety of applications by making use of excellent properties such as high corrosion resistance, lightweight, good formability and relatively high strength, and application range is expanding
Diffusion distance at 800 ° C for 30 min was at most 3 μm (Ti diffused to Mo side by approximately 2μm and Mo diffused to Ti side by about 1 μm)
Manufacturing of Ti foil by electrodeposition route was investigated with emphasizing on factors affecting quality of the foil and separability from the cathode
Summary
Titanium foil is used for a variety of applications by making use of excellent properties such as high corrosion resistance, lightweight, good formability and relatively high strength, and application range is expanding. It should be noted that separability of deposited Ti foil from the electrode is quite important for this process to be industrialized
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