CHARACTERISTICS OF TITANIUM ELECTRODEPOSITED BY POTENTIAL PULSE METHOD IN MOLTEN-SALTS

Titanium deposits were prepared on nickel substrate by potential pulse method in molten LiCl-NaCl-KCl eutectic salts with 2 mol% K2TiF6. The influence of the electrolysis conditions on crystal orientation and m orphology of the deposits was investigated by X-ray diffraction and sc anning electron microscopy, respectively. The preferred crystal orient ation of (110) of titanium deposits increased as temperature increases , and the crystal orientation of the deposits varied also with potenti al and pulse shape during electrolysis. The morphology of titanium dep osits showed well-crystallized grains, which became larger with increa se of temperature. The change in crystal orientation of the deposits w as tried to be explained by the absorption inhibition model.