The Bi-Rh phase diagram in [Massalski2] was redrawn from [Elliott].

[2009Wei] reinvestigated the Bi-rich part of this system by applying high-temperature centrifugation, DTA/DSC measurements, and x-ray diffraction analysis. Figure 1 shows the Bi-Rh phase diagram determined by [2009Wei] except the region involving the BiRh phase. Because the peritectic formation of BiRh in Fig. 1 was out of the range in the [2009Wei] diagram, it was adopted from [Elliott]. Bi2Rh was shown to exist in three polymorphic forms in [Massalski2]. However, [2009Wei] found only two forms.

Fig. 1
figure 1

Bi-Rh phase diagram

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Bi-Rh crystal structure data are shown in Table 1.

Table 1 Bi-Rh crystal structure data
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In addition to the phases shown in Fig. 1, [2009Wei] found a metastable phase Bi14Rh3 (17.6 at.% Rh).