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The electronic structures and elastic properties of ε-phases Cr2-xVxN (x=0, 1, 2) are studied from first principles. The formation enthalpy of Cr2N, CrVN, and V2N are –1.33, –2.30, and –3.10eV/f.u, respectively. From the perspective of formation energy, the phase stability increases from Cr2N, through VCrN, to V2N. ΔEf of VCrN is more negative than ([Cr2N]+[V2N])/2, which indicates that VCrN does...
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