Thermodynamic properties of Dy for Cu–Dy intermetallic compounds in two-phase coexisting states at different temperatures.

T/K	E eq/V vs. Ag/AgCl	ΔE/V vs. Dy(iii)/Dy	ΔḠDy/kJ (mol Dy)−1	a Dy
Plateau(Dy)
773	−1.943 ± 0.003
803	−1.925 ± 0.005
833	−1.917 ± 0.002
863	−1.912 ± 0.002
Plateau D	In the two-phase coexisting state between Cu5Dy and Cu
773	−1.557 ± 0.001	0.386 ± 0.004	−111.75 ± 1.16	2.81 × 10−8
803	−1.546 ± 0.004	0.379 ± 0.009	−109.72 ± 2.61	7.29 × 10−8
833	−1.54 ± 0.003	0.377 ± 0.005	−109.14 ± 1.45	1.43 × 10−7
863	−1.538 ± 0.005	0.374 ± 0.007	−108.27 ± 2.03	2.79 × 10−7
Plateau C	In the two-phase coexisting state between Cu9/2Dy and Cu5Dy
773	−1.686 ± 0.002	0.257 ± 0.005	−74.40 ± 1.45	9.38 × 10−6
803	−1.678 ± 0.004	0.247 ± 0.009	−71.51 ± 2.61	2.23 × 10−5
833	−1.675 ± 0.002	0.242 ± 0.004	−70.06 ± 1.61	4.04 × 10−5
863	−1.671 ± 0.001	0.241 ± 0.003	−69.77 ± 0.87	5.98 × 10−5
Plateau B	In the two-phase coexisting state between Cu2Dy and Cu9/2Dy
773	−1.763 ± 0.004	0.18 ± 0.007	−52.11 ± 2.03	3.01 × 10−4
803	−1.750 ± 0.003	0.175 ± 0.008	−50.66 ± 2.32	5.06 × 10−4
833	−1.746 ± 0.006	0.171 ± 0.008	−49.51 ± 2.32	7.86 × 10−4
863	−1.743 ± 0.004	0.169 ± 0.006	−48.93 ± 1.74	1.09 × 10−3
Plateau A	In the two-phase coexisting state between CuDy and Cu2Dy
773	−1.843 ± 0.004	0.1 ± 0.007	−28.95 ± 2.03	1.11 × 10−2
803	−1.828 ± 0.003	0.097 ± 0.008	−28.08 ± 2.32	1.49 × 10−2
833	−1.826 ± 0.004	0.091 ± 0.006	−26.35 ± 1.74	2.23 × 10−2
863	−1.823 ± 0.005	0.089 ± 0.007	−25.77 ± 2.03	2.76 × 10−2