6 The sponge electrode is then placed in the vacuum arc furnace for melting. Within this water-cooled, copper container, an electric arc is used to soften the sponge electrode to type an ingot. Yet another titanium compound of curiosity is titanium tetrachloride (TiCl4), a clear colorless liquid when retained in https://glasslinedbraidedsteelpip75926.bloggazzo.com/34805381/boron-carbide-options