Experimental determination of the phase relations in the Mn–As–Pr ternary system at 700 °C

2018 ◽  
Vol 741 ◽  
pp. 975-980
Author(s):  
Z.F. Gu ◽  
CH.F. Xu ◽  
L.J. Hong ◽  
D.D. Ma ◽  
G. Cheng ◽  
...  
2016 ◽  
Vol 667 ◽  
pp. 240-247 ◽  
Author(s):  
CH.F. Xu ◽  
K.H. Chen ◽  
Z.F. Gu ◽  
D.D. Ma ◽  
L.Y. Cheng ◽  
...  

1999 ◽  
Vol 54 (2) ◽  
pp. 252-260 ◽  
Author(s):  
P. Schmidt ◽  
C. Hennig ◽  
H. Oppermann

The phase relations in the ternary system Bi/Te/O have been determined in previous studies by solid state reactions. Thermodynamical data have now been obtained for the pertinent equilibria. The heats of solution of Bi2O3, Bi12TeO20, Bi10Te2O19, Bi16Te5O34, Bi2TeO5, Bi2Te2O7, Bi2Te4O11 and TeCl4 were determined in 4N HCl. From these the enthalpies of formation of bismuth tellurites at 298 K have been derived:⊿H°b (Bi12TeO20, f, 298) = -901,6 ± 8 kcal/mol,⊿H°b (Bi10Te2O19, f, 298) = -856,1 ± 9 kcal/mol,⊿H°b (Bi16Te5O34, f, 298) = -1519,5 ± 17 kcal/mol,⊿H°b (Bi2TeO5, f, 298)= -222,8 ± 3 kcal/mol,⊿H°b (Bi2Te2O7, f, 298)= -299,4 ± 4 kcal/mol,⊿H°b (Bi2Te4O11, f, 298)= -448,2 ± 7 kcal/mol.


2007 ◽  
Vol 15 (4) ◽  
pp. 475-478 ◽  
Author(s):  
Pongsaton Amornpitoksuk ◽  
Hongxiao Li ◽  
Jean-Claude Tedenac ◽  
Suzana G. Fries ◽  
Didier Ravot

Author(s):  
Z. F. Gu ◽  
Ch. F. Xu ◽  
R. F. Li ◽  
G. Cheng ◽  
L. Ma ◽  
...  

2013 ◽  
Vol 42 ◽  
pp. 14-22
Author(s):  
C.P. Wang ◽  
J.F. Luo ◽  
J.J. Ruan ◽  
C.C. Zhao ◽  
S.Y. Yang ◽  
...  

2013 ◽  
Vol 556 ◽  
pp. 280-286 ◽  
Author(s):  
J.J. Ruan ◽  
C.C. Zhao ◽  
Y. Yu ◽  
S.Y. Yang ◽  
C.P. Wang ◽  
...  

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