Ternary Compounds and Phase Equilibria in Ti‐Ge‐C and Ti‐Ge‐B

Bulk samples of nearly single‐phase and were fabricated using a synthesis process similar to one developed to produce bulk . Elemental powders were stored and mixed under argon and 2 g pellets were uniaxially pressed and encapsulated in quartz under vacuum for annealing. Additional samples were synthesized to establish the isothermal section of the ternary Ti‐Ge‐C phase diagram at 1200°C. The only ternary compounds present were and , and the equilibria between these and other phases in the system were established for the first time. Attempts at substituting boron for carbon in and by the same technique proved unsuccessful. The phase distributions in Ti‐Ge‐B samples at 1200°C were consistent with a previously established ternary diagram at 700°C which indicated that no ternary phases of this or any other type are present at equilibrium in the Ti‐Ge‐B system.