Zirconium Boride, Zr₃B₄

Zirconium Boride, Zr₃B₄, was obtained by Tucker and Moody as a hard, crystalline, difficultly fusible substance by heating together 5 grams of zirconium and 1.1 gram of boron by means of a current of 200 amperes at 65 volts. Wedekind also obtained a boride in the reduction of zirconia by boron in the electric furnace.