Stable and metastable phase equilibria in the GeSe2-Se system

Topological Ordering and Viscosity in the Glass-Forming Ge–Se System: The Search for a Structural or Dynamical Signature of the Intermediate Phase

“…As shown in Figure 3, the molar volumes measured by Feltz et al (1983) FIGURE 1 | The dependence of the liquidus temperature T L for the GexSe 1−x system on the composition x and mean coordination numbern = 2(1 + x). The data point for Se is a mean of the values reported by Berkes and Myers (1971), Johnson et al (1986), Morgant and Legendre (1986), Ota and Kunugi (1973), and Stølen et al (1999). The other data points were taken from Dembovskii et al (1965), Ipser et al (1982), Mikolaichuk and Moroz (1986), Quenez and Khodadad (1969), Ross and Bourgon (1969), and Stølen et al (1999).…”

“…The data point for Se is a mean of the values reported by Berkes and Myers (1971), Johnson et al (1986), Morgant and Legendre (1986), Ota and Kunugi (1973), and Stølen et al (1999). The other data points were taken from Dembovskii et al (1965), Ipser et al (1982), Mikolaichuk and Moroz (1986), Quenez and Khodadad (1969), Ross and Bourgon (1969), and Stølen et al (1999). The solid (black) curve gives a least-squares fit of the measured data sets to an inverse polynomial function.…”

Heat capacity and thermodynamic properties of GeSe2at temperatures fromT=( 13 to 900)K. Structural phase transition atT= 423K

“…represent experimental points determined at the University of Oslo: (1) •, electron microprobe; , calorimetry; , thermal analysis; , annealing experiments. The filled symbols represent determinations taken from literature: , Karakhanova et al; (2) •, Ipser et al; (3) , Glazov et al (4) φ has recently been shown to be stable.…”

“…The filled symbols represent determinations taken from literature: , Karakhanova et al; (2) •, Ipser et al; (3) , Glazov et al (4) φ has recently been shown to be stable. (1) The latter compound has a composition near Ge 3 Se 7 and melts incongruently at T = (658 ± 5) K to GeSe 2 and a liquid with (85 ± 2) mole per cent Se. The GeSe 2 -Se section of the phase diagram is shown in figure 1.…”

“…The GeSe 2 -Se section of the phase diagram is shown in figure 1. (1) While no thermodynamic studies of φ have been reported, the thermodynamic properties of GeSe(s) and GeSe 2 (s) are known with a fair degree of reliability. (5) Some important pieces of experimental information are, however, missing, i.e.…”