ChemInform Abstract: BETA‐T‐X‐PHASENDIAGRAMM DES SYST. SB2SE3‐SBJ3

Abstract

Durch DTA und Röntgenphasenanalyse sowie durch Dampfdruckbestimmungen für die Dreiphasengleichgewichte werden die drei Projektionen des räumlichen p‐T‐x‐Diagramms des Systems Sb2Se3‐SbJ3 konstruiert.

Phase diagram of the Sb–Se–I system and thermodynamic properties of SbSeI

“…The DTA results for the selected alloys in this system showed the coincidence with the results reported in the literature [7]. SbSeI melts congruently at 725 K, its eutectic crystallizes at 58 mol.% Sb 2 Se 3 at 716 K, and the eutetic with SbI 3 is degenerate (Fig.…”

“…In all cases the estimated standard deviations were calculated by accumulation of errors. For comparison, Table 5 also contains thermodynamic data obtained from the tensimetric measurements [7,20]. Also, our EMF measurements for the alloys in the Sb 2 Se 3 -SbSeI-Se subsystem allowed us calculating the standard integral thermodynamic functions of Sb 2 Se 3 (Table 5), which were found to be in a good agreement with the literature data [14,18,19].…”

“…[3] this section includes the only compound SbSeI that melts congruently at 721 K, whereas the eutectic compositions were found to be 69 and 3 mol% Sb 2 S 3 at temperatures 703 and 428 K, respectively. Other authors [7,8] report slightly different data on the melting points and eutectic compositions. The melting points vary from one study to another, covering the range of 675-725 K; similar disagreement can be found for the eutectic composition and temperature.…”

“…The ternary Sb-Se-I system was investigated on the basis of various polythermal sections, among which the quasi-binary Sb 2 Se 3 -SbI 3 section was the most studied [6][7][8][9][10]. According to Ref.…”

Chemical Vapour Transport of Bismuth and Antimony Chalcogenides M2Q3 (M = Sb, Bi, Q = Se, Te)

“…The phase relations and equilibrium pressures for the analogous systems M 2 Q 3 /I 2 including the ternary phases BiTeI [29], SbSeI [31], and SbTeI [32] can be assumed to be similar. For this reason, the temperature conditions and the amount of transport agent (iodine) has to be restricted in the same way.…”