A “perfect Janus emulsion”: Thermodynamic factors

2016 ◽  
Vol 38 (4) ◽  
pp. 594-597 ◽  
Author(s):  
I. Kovach ◽  
S. E. Friberg ◽  
J. Koetz
Keyword(s):  
Janus Emulsion ◽  
Thermodynamic Factors

Dependence of Diffusion Paths on Thermodynamic Factors in Ternary Systems

2008 ◽  
Vol 277 ◽  
pp. 119-124 ◽  
Author(s):  
Ü. Ugaste ◽  
J. Priimets ◽  
Tony Laas
Keyword(s):  
Approximate Equation ◽  
Ternary Systems ◽  
Diffusion Path ◽  
Tracer Diffusion ◽  
Diffusion Paths ◽  
Slope Function ◽  
Experimental Values ◽  
The Impact ◽  
Tracer Diffusion Coefficients ◽  
Thermodynamic Factors

The impact of thermodynamic factors on deviation from linearity of diffusion path in the ternary system Cu-Fe-Ni is analyzed. For that the slope function of the diffusion path for the diffusion couples 65Ni30Cu5Fe –29.5Ni16.5Cu54Fe, 49.5Ni50.5Fe – 51Ni49Cu and 84Cu16Ni – 50Ni50Fe, annealed at 1000°C for 196h, were calculated by an approximate equation using only thermodynamic data. Results of the calculation were compared with the values of the slope function obtained directly from experimental data. It is shown that despite of the fact that the tracer diffusion coefficients of the components in the system Cu-Fe-Ni are not equal the coincidence between the calculated and experimental values of the slope function is remarkable. This allows us to conclude that at least in this case the deviation of the diffusion path from linearity depends mainly on the thermodynamic properties of the system.

Droplet topology control of Janus emulsion prepared in one-step high energy mixing

Soft Matter ◽  
2014 ◽  
Vol 10 (25) ◽  
pp. 4498-4505 ◽  
Author(s):  
Lingling Ge ◽  
Wanqing Shao ◽  
Shuhui Lu ◽  
Rong Guo
Keyword(s):  
Topology Control ◽  
High Energy ◽  
One Step ◽  
Janus Emulsion

Projection of rotationally and translational free droplets of Janus emulsions between slides with spacers and the topology elements of Janus droplets.

Influence of Thermodynamic Factors on Growth of $\bf AlAs_{1-{\ninmbi x}}Sb_{\ninmbi x}$ Alloys

1994 ◽  
Vol 33 (Part 2, No. 10A) ◽  
pp. L1370-L1373 ◽  
Author(s):  
Wei-Kuo Chen ◽  
Ming-Ta Chin
Keyword(s):  
Thermodynamic Factors

Study of thermodynamic factors for equilibrium reactions involved in steam reforming of natural gas

2011 ◽  
Vol 47 (5) ◽  
pp. 374-380 ◽  
Author(s):  
S. Urrejola ◽  
A. Sanchez ◽  
A. Cancela ◽  
R. Maceiras ◽  
V. Del Val
Keyword(s):  
Natural Gas ◽  
Steam Reforming ◽  
Equilibrium Reactions ◽  
Thermodynamic Factors

Metastability of tetragonal ZrO2 derived from Zr-n-propoxide-acetylacetone-water-isopropyl alcohol

1998 ◽  
Vol 13 (8) ◽  
pp. 2174-2183 ◽  
Author(s):  
Zhaoqi Zhan ◽  
Hua C. Zeng
Keyword(s):  
Transformation Temperature ◽  
Isopropyl Alcohol ◽  
Tetragonal Zro2 ◽  
Surface Oxygen ◽  
Crystallite Growth ◽  
Calcination Temperatures ◽  
Work Surface ◽  
20 Nm ◽  
Temperature Time ◽  
Thermodynamic Factors

ZrO2 nanopowders derived from zirconium n-propoxide [Zr(OC3H7)4]-acetylacetone-water-isopropanol have been investigated with respect to their tetragonal metastability on heating-cooling processes. The transformation temperature of metastable tetragonal to monoclinic (t′ → m) phase is found to be governed by ultimate firing temperature, time, and atmospheres employed. Crystallite growth is fastened with increase in calcination temperatures over 1000–1400 °C, and the t′ → m transformation temperature is correlated linearly with crystallite size in the studied range of 12–20 nm. Heating in an oxygen environment increases the size of the final crystallites and hence the rate of the t′ → m transformation. It is revealed that the t′ → m transformation temperature depends largely on the heating atmosphere, but only weakly on the cooling one. Based on the findings of this work, surface oxygen deficiencies are attributed to be responsible for low-temperature tetragonal metastability. A crystallite growth model to explain the decline of t′-ZrO2phase is proposed. Kinetic and thermodynamic factors are also discussed in connection with the existing theories of tetragonal metastability.

scholarly journals Ultralight magnetic aerogels from Janus emulsions

RSC Advances ◽  
2020 ◽  
Vol 10 (13) ◽  
pp. 7492-7499 ◽  
Author(s):  
Rajarshi Roy Raju ◽  
Ferenc Liebig ◽  
Bastian Klemke ◽  
Joachim Koetz
Keyword(s):  
Olive Oil ◽  
Freeze Drying ◽  
Silicone Oil ◽  
Sodium Carboxymethylcellulose ◽  
Janus Emulsion

Magnetite containing aerogels were synthesized by freeze-drying olive oil/silicone oil-based Janus emulsion gels containing gelatin and sodium carboxymethylcellulose (NaCMC).

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