Phase Diagram and Electrical Conductivity of the AgCl-NdCl3 Binary System

2008 ◽  
Vol 63 (5-6) ◽  
pp. 364-370 ◽  
Author(s):  
Monika Szymanska-Kolodziej ◽  
Pavel Kolodziej ◽  
Leszek Rycerz ◽  
Marcelle Gaune-Escard
Keyword(s):  
Phase Diagram ◽  
Electrical Conductivity ◽  
Differential Scanning Calorimetry ◽  
Phase Equilibrium ◽  
Binary System ◽  
Eutectic Composition ◽  
Liquid Mixtures ◽  
Eutectic System ◽  
Scanning Calorimetry ◽  
Simple Eutectic System

Differential scanning calorimetry (DSC) was used to investigate the phase equilibrium in the AgCl- NdCl3 system. This binary mixture represents a typical example of simple eutectic system, with eutectic composition x(AgCl)=0.796 and temperature Teut = 668 K, respectively. The electrical conductivity of AgCl-NdCl3 liquid mixtures, together with that of pure components was measured down to temperatures below solidification. Results obtained are discussed in terms of possible complex formation.

Phase Diagram of the TbBr3-KBr Binary System

2004 ◽  
Vol 59 (1-2) ◽  
pp. 84-90 ◽  
Author(s):  
L. Rycerz ◽  
M. Gaune-Escard
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Differential Scanning Calorimetry ◽  
Phase Equilibrium ◽  
Binary System ◽  
Solid Phase ◽  
Scanning Calorimetry ◽  
Solid Phase Transition

The phase equilibrium of the TbBr3-KBr has been established by Differential Scanning Calorimetry. This system has the three compounds K3TbBr6, K2TbBr5, and KTb2Br7 and two eutectics located at (χTb = 0.163 (885 K) and (χTb = 0.433 (697 K). K3TbBr6 undergoes a solid-solid phase transition at 691 K and melts congruently at 983 K with the corresponding enthalpies 8.0 and 48.0 kJ mol−1. K2TbBr5 melts incongruently at 725 K, and KTb2Br7 at 741 K. The latter forms at 694 K, a temperature very close to that (697 K) of one of the two eutectics also existing in the binary system.

scholarly journals Phase Diagram and Electrical Conductivity of the PrBr3-CsBr Binary System

2010 ◽  
Vol 65 (10) ◽  
pp. 859-864 ◽  
Author(s):  
Leszek Rycerz ◽  
Ewa Ingier-Stocka ◽  
Madjid Berkani ◽  
Marcelle Gaune-Escard
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Electrical Conductivity ◽  
Binary System ◽  
Composition Range ◽  
Solid Phase ◽  
Molar Fraction ◽  
Liquid Mixtures ◽  
Scanning Calorimetry ◽  
Solid Phase Transition

Phase equilibrium in the PrBr3-CsBr binary system was established from Differential Scanning Calorimetry (DSC). This system has two compounds, Cs3PrBr6 and CsPr2Br7, and three eutectics located at molar fraction of PrBr3 (x = 0.108; 850 K), (x = 0.453; 767 K), and (x = 0.757, 870 K), respectively. Cs3PrBr6 undergoes a solid-solid phase transition at 726 K and melts congruently at 1051 K. CsPr2Br7 undergoes a solid-solid phase transition at 835 K, and melts congruently at 896 K. The electrical conductivity of PrBr3-CsBr liquid mixtures was measured down to temperatures below solidification over the whole composition range. Results obtained are discussed in term of possible complex formation.

Solid–liquid equilibria in systems [Cxmim][Tf2N] with diethylamine

2015 ◽  
Vol 87 (5) ◽  
pp. 453-460 ◽  
Author(s):  
Jan Rotrekl ◽  
Pavel Vrbka ◽  
Zuzana Sedláková ◽  
Zdeněk Wagner ◽  
Johan Jacquemin ◽  
...  
Keyword(s):  
Differential Scanning Calorimetry ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Phase Equilibrium ◽  
Binary System ◽  
Activity Coefficients ◽  
Liquid Equilibrium ◽  
Scanning Calorimetry ◽  
Solid Liquid ◽  
System 1

AbstractIn the present work, the solid–liquid–liquid equilibrium in the binary system of diethylamine (1) and ionic liquid (2) 1-methyl-3-ethylimidazolium bis(trifluoromethylsulfonyl)imide and solid–liquid equilibrium in system 1-methyl-3-butylimidazolium bis(trifluoromethylsulfonyl)imide was studied. Phase equilibrium was determined experimentally by means of a polythermic method. These data were then used to determine the activity coefficients for both ionic liquids. For the pure diethylamine the enthalpy of fusion was determined by differential scanning calorimetry, because to the best of our knowledge, this data is not yet reported in the open literature, a contrario of pure ionic liquids tested during this work.

Phase diagram and electrical conductivity of the CeBr3–RbBr binary system

2008 ◽  
Vol 450 (1-2) ◽  
pp. 175-180 ◽  
Author(s):  
L. Rycerz ◽  
E. Ingier-Stocka ◽  
S. Gadzuric ◽  
M. Gaune-Escard
Keyword(s):  
Phase Diagram ◽  
Electrical Conductivity ◽  
Binary System

Solid-liquid phase equilibrium diagrams of binary mixtures containing fatty acids, fatty alcohol compounds and tripalmitin using differential scanning calorimetry

2019 ◽  
Vol 497 ◽  
pp. 19-32 ◽  
Author(s):  
Fernanda Paludetto Pelaquim ◽  
Flávio Cardoso de Matos ◽  
Lisandro Pavie Cardoso ◽  
Eduardo Augusto Caldas Batista ◽  
Antonio José de Almeida Meirelles ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Differential Scanning Calorimetry ◽  
Phase Equilibrium ◽  
Liquid Phase ◽  
Binary Mixtures ◽  
Fatty Alcohol ◽  
Scanning Calorimetry ◽  
Solid Liquid

scholarly journals Development of Pressure-Responsive PolyPropylene and Biochar-Based Materials

Micromachines ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 339 ◽  
Author(s):  
Amir Noori ◽  
Mattia Bartoli ◽  
Alberto Frache ◽  
Erik Piatti ◽  
Mauro Giorcelli ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Electrical Conductivity ◽  
Differential Scanning Calorimetry ◽  
Plastic Deformation ◽  
Electrical Properties ◽  
Tea Leaves ◽  
Scanning Calorimetry ◽  
A Value ◽  
Wide Range ◽  
Order Of Magnitude

In this research paper, we reported the synthesis of biochar-based composites using biochar derived from exhausted tea leaves and polypropylene. The resulting materials were deeply characterized investigating mechanical (dynamic mechanical thermal analysis), thermal (thermogravimetrical analysis and differential scanning calorimetry), morphological (field emission scanning microscopy) and electrical properties vs. temperature. Furthermore, electrical conductivity was studied for a wide range of pressures showing an irreversible plastic deformation. An increment of one order of magnitude in the conductivity was observed in the case of 40 wt% biochar loading, reaching a value of 0.2 S/m. The material produced exhibited the properties of an irreversible pressure sensor.

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