Irregular Homogeneity Domains in Ternary Intermetallic Systems
AbstractTernary intermetallic A–B–C systems sometimes have unexpected behaviors. The present paper examines situations in which there is a tendency to simultaneously form the compounds ABx, ACx and BCx with the same crystal structure. This causes irregular shapes of the phase homogeneity domains and, from a structural point of view, a complete reversal of site occupancies for the B atom when crossing the homogeneity domain. This work reviews previous studies done in the systems Fe–Nb–Zr, Hf–Mo–Re, Hf–Re–W, Mo–Re–Zr, Re–W–Zr, Cr–Mn–Si, Cr–Mo–Re, and Mo–Ni–Re, and involving the topologically close-packed Laves, χ and σ phases. These systems have been studied using ternary isothermal section determination, DFT calculations, site occupancy measurement using joint X-ray, and neutron diffraction Rietveld refinement. Conclusions are drawn concerning this phenomenon. The paper also reports new experimental or calculated data on Co–Cr–Re and Fe–Nb–Zr systems. View Full-Text
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Joubert, J.-M.; Andasmas, M.; Crivello, J.-C. Irregular Homogeneity Domains in Ternary Intermetallic Systems. Appl. Sci. 2015, 5, 1570-1589.
Joubert J-M, Andasmas M, Crivello J-C. Irregular Homogeneity Domains in Ternary Intermetallic Systems. Applied Sciences. 2015; 5(4):1570-1589.Chicago/Turabian Style
Joubert, Jean-Marc; Andasmas, Mohamed; Crivello, Jean-Claude. 2015. "Irregular Homogeneity Domains in Ternary Intermetallic Systems." Appl. Sci. 5, no. 4: 1570-1589.