Effect of Na2WO4 Content on the Crystallization Temperature of NaCl-KCl-Na2WO4 Molten Salt System

2014 ◽  
Vol 908 ◽  
pp. 155-158
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Phase Transition ◽  
Thermal Analysis ◽  
Transition Temperature ◽  
Molten Salt ◽  
Phase Transition Temperature ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System

The Liquidus Temperature of Molten Salt Nacl-Kcl-Na2WO4 System was Measured by Differential Thermal Analysis. the Results Show that, in the Molten Salt System, when XNa2WO4≤0.7 Eutectic Temperature is 555 °C and a Phase Transition Temperature is 512.8 °C, Eutectic Composition Become XNaCl= 0.35, XKCl= 0.35, XNa2WO4= 0.3; when XNa2WO4>0.7, Eutectic Temperature and a Phase Transition Temperature are Respectively 613 °C and 574.4 °C, Eutectic Composition Become XNaCl= 0.1, XKCl= 0.1, XNa2WO4= 0.8.

Effect of Na2WO4 Content on the Liquidus Temperature of NaCl-KCl-NaF-Na2WO4 Molten Salt System

2014 ◽  
Vol 909 ◽  
pp. 45-49
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Phase Transition ◽  
Thermal Analysis ◽  
Transition Temperature ◽  
Molten Salt ◽  
Phase Transition Temperature ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System

The liquidus temperature of molten salt NaCl-KCl-NaF-Na2WO4 system was measured by differential thermal analysis. The results show that in the molten salt system when 0.6 eutectic temperature is 542.1 °C and a phase transition temperature is 515.4 °C, eutectic composition become = 0.28, = 0.28, =0.14, = 0.3; when > 0.6, eutectic temperature and a phase transition temperature are respectively 597.7 °C and 495.8 °C, eutectic composition become = 0.12, = 0.12, = 0.06, = 0.7.

Effect of Na3WO3F3 Content on the Liquidus Temperature of NaCl-KCl-Na3WO3F3 Molten Salt System

2014 ◽  
Vol 908 ◽  
pp. 159-162
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Molten Salt ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System

The liquidus temperature of molten salt NaCl-KCl-Na3WO3F3 system was measured by differential thermal analysis. The results show that in the molten salt system when XNaCl:XKCl=1:1, XNa3WO3F3<0.6 the liquidus temperature decreased with increase of Na3WO3F3 content; when XNaCl:XKCl=1:1, XNa3WO3F3> 0.6 the liquidus temperature increased with the increase of Na3WO3F3 content; the eutectic temperature is 612.9 °C, the eutectic composition is XNaCl=0.2, XKCl=0.2, XNa3WO3F3=0.6.

Effect of NaWO3F Content on the Liquidus Temperature of NaCl-KCl-NaWO3F Molten Salt System

2014 ◽  
Vol 909 ◽  
pp. 41-44
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Molten Salt ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System ◽  
F System

The liquidus temperature of molten salt NaCl-KCl-NaWO3F system was measured by differential thermal analysis. The results show that in the molten salt system when :=1:1, XNaWO3F <0.5 the liquidus temperature decreased with the increase of NaWO3F content; when :=1:1, XNaWO3F>0.5 the liquidus temperature increased with the increase of NaWO3F content; the eutectic temperature is 615.9 °C, the eutectic composition is =0.25, =0.25, XNaWO3F=0.5.

Effect of WO3 Content on the Liquidus Temperature of NaCl-KCl-NaF-WO3 Molten Salt System

2014 ◽  
Vol 909 ◽  
pp. 54-57 ◽  
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Molten Salt ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System

The liquidus temperature of molten salt NaCl-KCl-NaF-WO3 system was measured by differential thermal analysis. The results show that in the molten salt system when 0.1379 eutectic temperature is 616.5 °C, eutectic composition is =0.3846, =0.3846, =0.1923, =0.0385; when >0.1379, eutectic temperature is 628.9 °C, eutectic composition is = 0.3390, = 0.3390, =0.1695, = 0.1525.

Effect of Na3WO3F3 Content on the Liquidus Temperature of KCl-Na3WO3F3 Molten Salt System

2014 ◽  
Vol 909 ◽  
pp. 50-53
Author(s):  
Jie Li ◽  
Yang Pei ◽  
Ya Bin Liu ◽  
Yun Gang Li
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Molten Salt ◽  
Liquidus Temperature ◽  
Eutectic Composition ◽  
Eutectic Temperature ◽  
Salt System ◽  
Molten Salt System

The liquidus temperature of molten salt KCl-Na3WO3F3 system was measured by differential thermal analysis. The results show that in the molten salt system when =0.5, <0.5 the liquidus temperature decreased with the increase of Na3WO3F3 content; when =0.5, >0.5 the liquidus temperature increased with the increase of Na3WO3F3 content; the eutectic temperature is 601.8 °C, the eutectic composition is = 0.5, =0.5.

The structure of membranes and membrane proteins embedded in amorphous ice

1992 ◽  
Vol 50 (1) ◽  
pp. 432-433
Author(s):  
Uwe Lücken ◽  
Joachim Jäger
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Membrane Proteins ◽  
Phase Transition Temperature ◽  
Lipid Vesicles ◽  
Freezing Stress ◽  
Amorphous Ice ◽  
Different Temperatures ◽  
Band Pass ◽  
Lipid Polymorphism

TEM imaging of frozen-hydrated lipid vesicles has been done by several groups Thermotrophic and lyotrophic polymorphism has been reported. By using image processing, computer simulation and tilt experiments, we tried to learn about the influence of freezing-stress and defocus artifacts on the lipid polymorphism and fine structure of the bilayer profile. We show integrated membrane proteins do modulate the bilayer structure and the morphology of the vesicles.Phase transitions of DMPC vesicles were visualized after freezing under equilibrium conditions at different temperatures in a controlled-environment vitrification system. Below the main phase transition temperature of 24°C (Fig. 1), vesicles show a facetted appearance due to the quasicrystalline areas. A gradual increase in temperature leads to melting processes with different morphology in the bilayer profile. Far above the phase transition temperature the bilayer profile is still present. In the band-pass-filtered images (Fig. 2) no significant change in the width of the bilayer profile is visible.

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