Regulation of the structure and phase composition of titanium aluminides produced by zone melting - E. A. Asnis; N. V. Piskun; I. I. Statkevich; E. A. Velikoivanenko; G. F. Rozynka; A. S. Milenin; I. L. Bogajchuk; V. E. Filatov (Reports of the National Academy of Sciences of Ukraine, 2017)