Figure 1
From: Nitrogen concentration driving the hardness of rhenium nitrides
Convex hull diagram for Re-N system.
At pressures of (a) 10 GPa, (b) 40 GPa, (c) 70 GPa and (d) 100 GPa, respectively. Solid circles represent stable phases while open circles denote metastable phases. N-rich stoichiometries are highlighted by cyan shadows.
