Phase diagram compound formation

System Phase diagram Compounds, formation, temperature (K) 3 1 2 1 1 1 3 5 Reference... 

Figure 5.5. The oxygen-hydrogen system as reported by Okamoto (2000). Notice in the phase diagram the formation of the well-known covalent hydrogen-oxygen compounds.

Figure 6.18. In-As phase diagram (at constrained pressure). Notice, (similarly to other III/V phase diagrams) the formation of the congruently melting 1 1 compound which gives two eutectics. The eutectic with In is practically coincident with In. As a consequence, for all the compositions from 0 up to 50 at.% As the primary crystallization of InAs may he obtained.

Formation of the Group-IIA-Group-IIB Element Bond 7.3.4.1. Phase Diagrams, Intermetallic Phases and Compounds... 

Beryllium forms intermetallic compounds with transition metals and phase diagrams are available Some 26 phase diagrams have also been published for Mg-transition metal systems, and intermetallic compound formation is widespread in these systems also. The extent of intermetallic compound formation decreases down group IIA, such that Ca, Sr and Ba show much less tendency for compound formation to the extent that compounds are observed only in the Ba-Pd system. 

Phase diagrams for the systems calcium/ magnesium and H20/HF formation of one and three compounds, respectively... 

The state of the art has been summarized by Colinet (2003) who reported a description of the ab initio calculation methods of energies of formation for intermetallic compounds and a review of the aluminium-based compounds studied. In its conclusions, this paper underlined that the complete ab initio calculation of complex phase diagrams is not close at hand. However, calculation of phase diagrams in systems, where experimental data are missing, could, in the future, be performed by combination of CALPHAD routines and ab initio calculations of formation energies or mixing energies. 

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