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. 2023 Jul 24;14:4439. doi: 10.1038/s41467-023-40074-7

Table 1.

Bond effective force constants of Zr–M and M–M (M = Fe, Ni; κ‖ is the corresponding bond-stretching) extracted from EXAFS62; the thermal expansion properties of MZr2 ingot along VD (93–1078 K)

Sample κ‖ (eV/Å2) △l/l0
Zr–M M–M
FeZr2 2.76 ± 0.03 2.36 ± 0.26 −3.35%
NiZr2 3.78 ± 0.10 3.61 ± 0.28 1.12%