Transformations in undercooled molten Pd40.5Ni40.5P19

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.

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

Water Practice & Technology ◽

10.2166/wpt.2020.107 ◽

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.

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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 ◽

10.1039/d0ra07592b ◽

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.

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Glass Formation and Phase Separation In The Vitreloy Type Bulk Metallic Glasses

MRS Proceedings ◽

10.1557/proc-554-243 ◽

1998 ◽

Vol 554 ◽

Cited By ~ 1

Author(s):

Charles C. Hays ◽

Paul Kim ◽

William L. Johnson

Keyword(s):

Phase Separation ◽

Liquid State ◽

Ternary Phase ◽

Ternary Phase Diagram ◽

Alloy System ◽

Structural Data ◽

Primary Crystallization ◽

Supercooled Liquid ◽

Glass Forming ◽

Thermal Features

AbstractResults of calorimetric, differential thermal analysis, and structural measurements are presented for a series of bulk metallic glass forming compositions in the Zr-Ti-Cu-Ni-Be alloy system. The structural data identify the competing crystalline phases, formed on cooling from the liquid state, for various compositions in the Zr-Ti-X quasi-ternary phase diagram; with the Cu-Ni-Be ratio given by X = Be9Cu5Ni4. For this region of the ndimensional phase space (n=5), the bulk glass forming range is extensive and the calorimetric data exhibit thermal features associated with the occurrence of phase separation in the undercooled liquid state prior to primary crystallization. The topology of the composition manifold is complex; manifest by dramatic changes in crystallization behavior for small changes in the Zr-Ti-X ratio. Alloys with large supercooled liquid regions, Δ, are observed; ΔT≈ 135 K. Zr-Ti-Cu-Ni-Be alloy compositions with eutectic temperatures less than that of pure Al (Tm = 933 K) were also synthesized.

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Reaction‐Induced Phase Separation in Polyoxyethylene/Polystyrene Blends. I. Ternary Phase Diagram

Journal of Macromolecular Science Part B ◽

10.1081/mb-120027760 ◽

2004 ◽

Vol 43 (1) ◽

pp. 219-232 ◽

Cited By ~ 3

Author(s):

D. Sutton ◽

J. L. Stanford ◽

A. J. Ryan

Keyword(s):

Phase Diagram ◽

Phase Separation ◽

Ternary Phase ◽

Ternary Phase Diagram

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Application of a Ternary Phase Diagram to the Phase Separation of Oil-in-Water Emulsions Using Isopropyl Alcohol

Journal of the American Oil Chemists Society ◽

10.1007/s11746-012-2127-6 ◽

2012 ◽

Vol 89 (12) ◽

pp. 2127-2134 ◽

Cited By ~ 2

Author(s):

Youngmee Tiffany Jung ◽

Levente L. Diosady

Keyword(s):

Phase Diagram ◽

Phase Separation ◽

Ternary Phase ◽

Isopropyl Alcohol ◽

Ternary Phase Diagram ◽

Oil In Water

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Formation and Optimization of Cu-Based Cu-Zr-Al Bulk Metallic Glasses

Materials Science Forum ◽

10.4028/www.scientific.net/msf.475-479.3381 ◽

2005 ◽

Vol 475-479 ◽

pp. 3381-3384 ◽

Cited By ~ 14

Author(s):

Qing Wang ◽

Jian Bing Qiang ◽

Ying Min Wang ◽

Jun Hai Xia ◽

Xin Fang Zhang ◽

...

Keyword(s):

Metallic Glasses ◽

Ternary Phase ◽

Ternary Phase Diagram ◽

Bulk Metallic Glasses ◽

Glass Forming Ability ◽

Glass Forming ◽

The Third ◽

A Value ◽

Composition Optimization ◽

Specific Cluster

The present paper covers in a comprehensive manner the formation of the Cu-based Cu-Zr-Al bulk metallic glasses (BMGs). Composition optimization for BMG formation is realized by using an “e/a-variant criterion”. This criterion is incorporated into the ternary phase diagram by a straight composition line, which is defined by linking a specific binary composition to the third element. There e/a-variant composition lines are constructed: (Cu9Zr4)1-xAl, (Cu61.8Zr38.2)1-xAlx and (Cu56Zr44)1-xAlx, where Cu9Zr4, Cu61.8Zr38.2 and Cu56Zr44 are specific cluster compositions in the Cu-rich Cu-Zr binary system. No Cu-based BMGs are obtained in the composition line (Cu9Zr4)1-xAlx using our suction casting techniques, while BMGs are obtained within an e/a span from 1.24 to 1.3 and from 1.28 to 1.36 respectively along the other two lines (Cu61.8Zr38.2)1-xAlx and (Cu56Zr44)1-xAlx. Thermal analysis results indicate that the BMGs on every composition line manifest increased thermal stability and glass forming ability (GFA) with increasing e/a ratios. The maximum appears in Cu58.1Zr35.9Al6 with the e/a value of 1.3, which belongs to the (Cu61.8Zr38.2)1-xAlx series. The characteristic thermal parameters of this BMG are Tg = 760K, Tg/Tm = 0.659 and Tg/Tl = 0.648, which are all superior to those reported for the known Cu55Zr40Al5 BMG.

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Metastable liquid phase separation in undercooled molten Pd40.5Ni40.5P19

Journal of Materials Research ◽

10.1557/jmr.1997.0043 ◽

1997 ◽

Vol 12 (2) ◽

pp. 314-317 ◽

Cited By ~ 24

Author(s):

C. W. Yuen ◽

K. L. Lee ◽

H. W. Kui

Keyword(s):

Phase Separation ◽

Spinodal Decomposition ◽

Liquid State ◽

Microstructural Analysis ◽

Nucleation And Growth ◽

Transition Regime ◽

Metastable Liquid ◽

Temperature Liquid ◽

Kinetic Crystallization ◽

Metastable Liquid Phase Separation

It was demonstrated that molten Pd40.5Ni40.5P19 undergoes liquid state phase separation in the undercooling regime δT = T1 − T where T1 is the liquidus of Pd40.5Ni40.5P19 and T is the kinetic crystallization temperature. Liquid state phase separation by nucleation and growth takes place for δT ≤ 60 K while that by spinodal decomposition occurs for δT ≥ 100 K. Microstructural analysis of the undercooled specimen obtained in the undercooling regime of 60 ≤ δT ≤ 100 K indicates that it is the transition regime. Finally, it was found that when undercooled molten Pd40.5Ni40.5P19 undergoes liquid state spinodal decomposition, it first decomposes into two liquid networks, which is finally replaced by a system of three liquid networks.

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