Abstract
The electrochemical synthesis of titanium borides from ionic-organic melts, based on carbamide, acetamide or imidazole, has been investigated by voltammetry and electrolysis. For better solubility of titanium and boron salts, we used salts containing ammonium as a cation: (NH4)2TiF6 and NH4BF4. Titanium boride coatings have been obtained on nickel and stainless steel by electrolysis from an ionic-organic melt at 120–135 °C. The X-ray phase analysis of samples after the electrolysis of the ionic-organic melt did not allow us to determine the composition of the coating because it was very fine-crystalline. In order to coarsen the crystal structure of the coating, the samples were annealed in a furnace at 600 °C in Ar stream. On the basis of XRD analyses, it may be assumed that the stoichiometry of the compound deposited from ionic-organic melts is TiB.
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