scholarly journals Effects of solvent sort on casting solution and morphology of poly(ether sulfones) filtration membrane

2020 ◽  
Author(s):  
Kai Fan ◽  
Chun Liu ◽  
Haijun Yang ◽  
Zhengchi Hou
Keyword(s):  
Phase Diagram ◽  
Phase Separation ◽  
Shear Viscosity ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Viscosity Measurement ◽  
Micro Structure ◽  
Filtration Membranes ◽  
Filtration Membrane ◽  
Thermodynamics And Dynamics

Abstract Four kinds of solvent were chosen to prepare poly(ether sulfones) (PES) filtration membranes by the nonsolvent induced phase separation (NIPS) method. Ternary phase diagram and shear viscosity measurement were conducted to analyse the formation of prepared membrane from thermodynamic and kinetic perspectives. The micro-structure of the membranes with different solvents were analysed, and the result showed a high relevance to the thermodynamics and dynamics of the casting solutions, and promoted the proposal of a reasonable membrane formation mechanism.

scholarly journals Fabrication of a PVDF membrane with tailored morphology and properties via exploring and computing its ternary phase diagram for wastewater treatment and gas separation applications

RSC Advances ◽  
2020 ◽  
Vol 10 (66) ◽  
pp. 40373-40383
Author(s):  
S. Ashtiani ◽  
M. Khoshnamvand ◽  
P. Číhal ◽  
M. Dendisová ◽  
A. Randová ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Wastewater Treatment ◽  
Phase Separation ◽  
Ternary Phase ◽  
Vinylidene Fluoride ◽  
Ternary Phase Diagram ◽  
Simple Approach ◽  
Hydrophobic Properties ◽  
Pvdf Membrane ◽  
Poly Vinylidene Fluoride

We report a simple approach for tailoring the morphology of poly(vinylidene fluoride) (PVDF) membranes fabricated using a nonsolvent induced phase separation (NIPS) method that sustains both the hydrophilic and hydrophobic properties.

Origins of phase separation in thermoelectric (Ti, Zr, Hf)NiSn half-Heusler alloys from first principles

2016 ◽  
Vol 4 (36) ◽  
pp. 13949-13956 ◽  
Author(s):  
Alexander Page ◽  
Anton Van der Ven ◽  
P. F. P. Poudeu ◽  
Ctirad Uher
Keyword(s):  
Phase Diagram ◽  
Phase Separation ◽  
First Principles ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Heusler Alloys ◽  
First Principles Calculations ◽  
Composition Space

First principles calculations were used to create a pseudo-ternary phase diagram of the (Hf1−x−yZryTix)NiSn composition space.

Transformations in undercooled molten Pd40.5Ni40.5P19

1998 ◽  
Vol 13 (11) ◽  
pp. 3034-3042 ◽  
Author(s):  
C. W. Yuen ◽  
H. W. Kui
Keyword(s):  
Phase Diagram ◽  
Phase Separation ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Nucleation And Growth ◽  
Glass Forming Ability ◽  
Metallic Alloys ◽  
Transition Regime ◽  
Glass Forming ◽  
Kinetic Crystallization

It was demonstrated that liquid phase separation by nucleation and growth (LNG) occurs in undercooled molten Pd40.5Ni40.5P19 for undercoolings ΔT ≤ 60 K (ΔT = Tl − T where Tl is the liquidus and T is the kinetic crystallization temperature), and liquid state spinodal decomposition (LSD) occurs for ΔT ≥ 100. For 60 ≤ ΔT ≤ 100 K, it is the transition regime from LNG to LSD. A ternary phase diagram is introduced to summarize the reactions occurred in undercooled molten Pd40.5Ni40.5P19. Finally, it is suggested that LSD has an important impact on glass-forming ability of metallic alloys.

Using phase boundary mapping to resolve discrepancies in the Mg2Si–Mg2Sn miscibility gap

2021 ◽  
Author(s):  
Rachel Orenstein ◽  
James P. Male ◽  
Michael Toriyama ◽  
Shashwat Anand ◽  
G. Jeffrey Snyder
Keyword(s):  
Phase Diagram ◽  
Phase Boundary ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Miscibility Gap ◽  
Boundary Mapping

A new understanding of the MgSi–MgSn miscibility gap is reached through phase boundary mapping the Mg–Si–Sn ternary phase diagram.

Calculation of phase diagrams and thermodynamic properties of 14 additive and reciprocal ternary systems containing Li2CO3, Na2CO3, K2CO3, Li2SO4, Na2SO4, K2SO4, LiOH, NaOH, and KOH

1984 ◽  
Vol 62 (3) ◽  
pp. 457-474 ◽  
Author(s):  
A. D. Pelton ◽  
C. W. Bale ◽  
P. L. Lin
Keyword(s):  
Phase Diagram ◽  
Thermodynamic Properties ◽  
Molten Salt ◽  
Phase Diagrams ◽  
Binary Systems ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Ternary Systems ◽  
Maximum Error ◽  
Critical Assessment

Phase diagrams and thermodynamic properties of five additive molten salt ternary systems and nine reciprocal molten salt ternary systems containing the ions Li+, Na+, [Formula: see text], OH− are calculated from the thermodynamic properties of their binary subsystems which were obtained previously by a critical assessment of the thermodynamic data and the phase diagrams in these binary systems. Thermodynamic properties of ternary liquid phases are estimated from the binary properties by means of the Conformal Ionic Solution Theory. The ternary phase diagrams are then calculated from these thermodynamic properties by means of computer programs designed for the purpose. It is found that a ternary phase diagram can generally be calculated in this way with a maximum error about twice that of the maximum error in the binary phase diagrams upon which the calculations are based. If, in addition, some reliable ternary phase diagram measurements are available, these can be used to obtain small ternary correction terms. In this way, ternary phase diagram measurements can be smoothed and the isotherms drawn in a thermodynamically correct way. The thermodynamic approach permits experimental data to be critically assessed in the light of thermodynamic principles and accepted solution models. A critical assessment of error limits on all the calculated ternary diagrams is made, and suggestions as to which composition regions merit further experimental study are given.

scholarly journals Part II. Model for the Protective Coating Formation During Hot Dip Galvanizing/ Część II. Model Formowania Powłoki Ochronnej Podczas Cynkowania Ogniowego

2014 ◽  
Vol 59 (4) ◽  
pp. 1393-1404 ◽  
Author(s):  
W. Wołczynski ◽  
Z. Pogoda ◽  
G. Garzeł ◽  
B. Kucharska ◽  
A. Sypien ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Mass Balance ◽  
Protective Coating ◽  
Mathematical Description ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Solute Redistribution ◽  
Zinc Bath ◽  
Flux System ◽  
Coating Formation

Abstract A mathematical description for the (Zn) - coating formation with the presence of flux in the zinc bath is presented. This description includes the progressive vanishing of the products of the flux disintegration. A function which expresses the flux vanishing is formulated. The solidification of some phase sub-layers in the (Zn) - coating is considered with the use of a hypothetical pseudo-ternary phase diagram Fe-Zn-flux. Some relationships are formulated to define the varying Zn - solute redistribution as observed across the sub-layers. The relationships are based on the mass balance analyzed for the coating / bath / flux system. An amount of the growing phase in a given sub-layers is also defined mathematically.

Formation of Salicylic Acid/4,4′-Dipyridyl Cocrystals Based on the Ternary Phase Diagram

2015 ◽  
Vol 38 (6) ◽  
pp. 1073-1080 ◽  
Author(s):  
Kyeong-Sill Lee ◽  
Kwang-Joo Kim ◽  
Joachim Ulrich
Keyword(s):  
Phase Diagram ◽  
Salicylic Acid ◽  
Ternary Phase ◽  
Ternary Phase Diagram
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