Boron - Molybdenum - Nickel

Vasyl Kublii and Anatolii Bondar

Introduction

Early investigations of phase equilibria in the B-Mo-Ni system were presented in the work [1953Ste], in which the Mo₂NiB₂ ternary boride was reported to exist, along with the possibility of a second ternary boride Mo₂NiB₄ being formed. It was also noted that borides of such type, in particular Mo₂NiB₂, could be employed as hard materials for cutting tool applications owing to their physical properties. Subsequent studies reported the existence of one more ternary compound, MoNiB [1961Kol, 1964Kol]. The crystal structure of these ternary compounds were studied by [1966Has, 1966Kol, 1966Kuz, 1966Rie, 1966Vor, 1969Jed, 1969Kuz, 1984Omo], revealing more ternary compounds in the process. The phase equilibria of the system were studied by [1966Has, 1966Kol, 1969Kuz...