P-Te (Phosphorus-Tellurium)
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upplemental Literature Review: Section III
P-Te (Phosphorus-Tellurium) H. Okamoto
References
The P-Te phase diagram was unknown in [Massalski2]. [1980Mai] determined white P (aP)-Te phase diagram (Fig. 1) and red P-Te phase diagram (Fig. 2) by means of DTA and metallography. Among various allotropic forms of P, white P is regarded as the equilibrium phase at the ambient temperature. Table 1 shows P-Te crystal structure data.
Table 1
1980Mai: N.G. Maisashvili, G.Z. Vinogradova, N.V. Timofeeva, and N.P. Luzhnaya, Interaction of Various Phosphorus Modifications with Tellurium, Zh. Neorg. Khim., 1980, 25(3), p 680-683, in Russian, TR: Russ. J. Inorg. Chem., 1980, 25(3), p 373-375
P-Te crystal structure data
Phase
Composition, at.% Te
Pearson symbol
Space group
Strukturbericht designation
Prototype
(aP) (red P) PTe (Te)
0 0 50 100
c** mP84 ... hP3
... P12/c1 ... P3121
... ... ... A8
... ... ... cSe
Weight Percent Tellurium 0
10
20
30
40
50
60
70
80
180
160
140
L
120
100
80
PTe
Temperature,°C
110°C
60 44.14°C 40
35°C
20
(αP)
0 0 P
10
20
30
40
50
60
Atomic Percent Tellurium
Fig. 1 White P (aP)-Te phase diagram
Journal of Phase Equilibria and Diffusion Vol. 31 No. 4 2010
405
Section III: Supplemental Literature Review Weight Percent Tellurium 0 10 20 30 40
50
60
70
80
100
90
800
700
Temperature,°C
L1 + L2
L2
600
500°C
500
(red P) + L2
449.57°C
430°C
400
(red P) + (Te)
(Te)
300 0 P
10
20
30
40
50
60
70
80
90
Atomic Percent Tellurium
Fig. 2 Red P-Te phase diagram
406
Journal of Phase Equilibria and Diffusion Vol. 31 No. 4 2010
100 Te
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