Synthesis of ternary varieties of ε-Fe N: Experiment and theory. Joint ...
Synthesis of ternary varieties of ε-Fe N: Experiment and theory. Joint ...
Synthesis of ternary varieties of ε-Fe N: Experiment and theory. Joint ...
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www.iac.uni-stuttgart.de<br />
03-10<br />
DH (kJ/mol) DV (cm 3 /mol)<br />
-<strong>Fe</strong> 3N + Co – <strong>Fe</strong> 0.0 0.00<br />
2 <strong>Fe</strong> + N + Co 28.7 7.03<br />
-<strong>Fe</strong> 2CoN 14.8 0.03<br />
→ reaction not driven by pressure<br />
- 8 structures (ordered <strong>and</strong> statist. distributed)<br />
- a = 4.625 Å, c = 4.341 Å<br />
- c/a ratio in all structures approx. 1.07<br />
- Difference in energy less than 3 kJ/mol<br />
→ statistical distribution <strong>of</strong> <strong>Fe</strong> <strong>and</strong> Co atoms<br />
Max-Planck-Institut<br />
für Chemische Physik fester St<strong>of</strong>fe