AbstractsEarth & Environmental Science

An investigation of the zirconium-rich corner of the zirconium-titanium-niobium constitutional diagram is described. X-ray techniques and metallography were used. A high-temperature x-ray goniometer attachment was employed to construct ternary isopleths. Isothermal sections and lattice parameter measurements are also outlined. The occurrence of a transitional ω -phase identified tentatively as tetragonal, is noted. The ternary constitutional data presented represent essentially a survey of the zirconium-rich corner and more detailed results must await further work.