Calorimetric investigation of the liquid alloys of Ag + Te and of the Ag2Te solid compound at high temperature

1979 ◽  
Vol 11 (1) ◽  
pp. 83-92 ◽  
Author(s):  
R Castanet ◽  
C Bergman
2017 ◽  
Vol 5 (2) ◽  
pp. 24-29 ◽  
Author(s):  
Natalia Kotova ◽  
Michael Ivanov ◽  
Natalia Usenko

The enthalpies of mixing of liquid alloys of the ternary Cu–Sb–Ce system were studied by high-temperature calorimetry along the cross-section = 0.2/0.8. The composition dependence of these values were modelled using four "geometric" models and also the analytical method of Redlich–Kister–Muggianu. A comparison of the experimental data for the cross section = 0.2/0.8 and simulated values of the enthalpies of mixing showed that the most suitable for describing the properties of liquid alloys of ternary Cu–Sb–Ce system is the Toop model.


Author(s):  
Jorge López-Cuevas ◽  
Juan Carlos Rendón-Angeles ◽  
J.L. Rodríguez-Galicia ◽  
M. Herrera-Trejo ◽  
J. Méndez-Nonell

Author(s):  
Jorge López-Cuevas ◽  
Carlos A. Gutiérrez ◽  
Martin I. Pech-Canul ◽  
M. Castro-Román ◽  
Juan Carlos Rendón-Angeles

2003 ◽  
Vol 58 (7-8) ◽  
pp. 473-474 ◽  
Author(s):  
D. S. Kanibolotsky ◽  
N.V. Golovata ◽  
O.A. Bieloborodova ◽  
V.V. Lisnyak

In this work, enthalpies of mixing of binary liquid gallium-gadolinuim and gallium-silicon alloys have been measured by high-temperature isoperibolic calorimetry at 1760±5 K. Significant negative enthalpies of mixing have been found for Ga -Gd system, while these values are positive for Ga - Si melts.


2017 ◽  
Vol 889 ◽  
pp. 108-112
Author(s):  
Vladimir Tsepelev ◽  
Vladimir Vyukhin ◽  
Arkadi Povodator

There is a unit proposed for investigations in the high-temperature metallic liquid alloys, using image photometry of a “large melt drop” resting on the horizontal backplate. The unit is designed to determine the density d and surface tension σ of a sample of the mass given, placed into a horizontal electric furnace. Using a volumenometer enables measuring the geometric parameters of the drop. Various ways of expanding the range of operational functions are presented, in particular, extending the temperature range Δto and improving the unit efficiency as well as decreasing the artifacts’ impact. Updating the unit enables the studies (including the comparison studies) of both luminous and nonluminous samples to be conducted combining various ways of illuminating both the melt drop’s contours and surface. The ways of reducing the influence of vibrations and refining the backplate’s horizontal position as well as the possible measures for partial cleaning the films from the drop surface of the multicomponent melt are proposed. The use of the unit updated on the basis of approaches developed and patented by the authors enables reducing the time to be spent on measurements, expanding the range of the unit’s operational functions, decreasing the artifacts’ impact and improving the validity of the results obtained.


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