The Phase Diagram of Butylated Hydroxytoluene and Paracresol System

2013 ◽  
Vol 739 ◽  
pp. 125-130
Author(s):  
Yan Fei Wang ◽  
Ya Wei Hou ◽  
Yue Wen Liu ◽  
Zuo Liang Sha
Keyword(s):  
Experimental Data ◽  
Phase Diagram ◽  
Solid State ◽  
Eutectic Point ◽  
Phase Diagram Data ◽  
Melting Process ◽  
Butylated Hydroxytoluene ◽  
Eutectic System ◽  
Wilson Model ◽  
Binary Eutectic

The phase diagram was experimentally determined by measuring the melting process for butylated hydroxytoluene (BHT)/paracresol system with differential scanning calorimeter (DSC). It was confirmed that this system is a binary eutectic system. Experimental results showed that the binary system is completely miscible in the liquid state and completely immiscible in the solid state. The compositions of the eutectic point were 28.37/ 71.63(BHT /Paracresol, mass percent) in the T-X phase diagram. The phase diagram data was modeled by different models, and it was found that Wilson model give better description of the experimental data.

Thermodynamic Optimization and Calculation of the LaCl3-CaCl2 System

2019 ◽  
Vol 815 ◽  
pp. 15-20
Author(s):  
Yu Wang ◽  
Yun Wu ◽  
Jie Yang ◽  
Jin Song Xie ◽  
Qi Yi Yin
Keyword(s):  
Phase Diagram ◽  
Eutectic Point ◽  
Phase Diagram Data ◽  
Enthalpy Of Mixing ◽  
Calphad Method ◽  
Model Parameters ◽  
Thermodynamic Evaluation ◽  
Gibbs Energies ◽  
Liquid Phases ◽  
Calculated Enthalpy

A thermodynamic evaluation of the binary LaCl3-CaCl2 system was carried out by using CALPHAD method. The Modified Quasihelical Model was defined in order to describe the Gibbs energies of the liquid phases, and the model parameters were optimized from the experimental thermodynamic and phase diagram data. The phase diagram and the enthalpy of mixing of LaCl3-CaCl2 liquid were calculated. For LaCl3-CaCl2, a calculated eutectic point was observed at 924.82 K, 34.8 mol. % LaCl3. The calculated enthalpy of mixing is exothermic, the minimum was found at approximately 30 mol. % LaCl3. The thermodynamic properties and the phase diagram calculated from the optimized parameters agree well with the experimental data.

Thermodynamic Re-Assessment of the Co-Nb System

2008 ◽  
Vol 1128 ◽  
Author(s):  
Cuiyun He ◽  
Frank Stein ◽  
M. Palm ◽  
Dierk Raabe
Keyword(s):  
Experimental Data ◽  
Phase Diagram ◽  
Thermodynamic Assessment ◽  
Phase Diagram Data ◽  
Calculated Phase Diagram ◽  
Experimental Phase ◽  
Laves Phases ◽  
Experimental Phase Diagram ◽  
Gibbs Energies ◽  
The Individual

AbstractA new thermodynamic assessment of the Co-Nb system is presented. All experimental phase diagram data available from the literature have been critically reviewed and assessed using thermodynamic models for the Gibbs energies of the individual phases (Thermo-Calc). Compared to previous assessments more elaborate models for the description of the C14 and C36 Laves phases and for the μ phase were employed. Thereby a calculated phase diagram is obtained which satisfactorily agrees with the experimental data.

Solid-Liquid Equilibria for Binary Mixture of Dichlorophenols

2014 ◽  
Vol 881-883 ◽  
pp. 712-716
Author(s):  
Yan Fei Wang ◽  
Qi Shan Huang ◽  
Li Bin Yang ◽  
Liang Zhu
Keyword(s):  
Phase Diagram ◽  
Thermal Properties ◽  
Binary Mixture ◽  
Mole Fraction ◽  
Activity Coefficients ◽  
Binary Systems ◽  
Eutectic Point ◽  
Eutectic Type ◽  
Wilson Model ◽  
Solid Liquid

Differential Scanning Calorimeter (DSC) was used to investigate the thermal properties of 2,4-dichlorophenol+2,6-dichlorophenol and 2,4-dichlorophenol+2,3-dichlorophenol binary systems. The experimental results showed that The phase diagram of 2,4-dichlorophenol+2,6-dichlorophenol system was a simple eutectic type with the eutectic point at 294.99 K and 0.6200 mole fraction of 2,4dichlorophenol; The phase diagram of 2,4dichlorophenol+2,3dichlorophenol system was a simple eutectic type with the eutectic point at 291.86 K and 0.5834 mole fraction of 2,4dichlorophenol. Furthermore, the activity coefficients of components in mixtures of 2,4dichlorophenol+2,6dichlorophenol and2,4dichlorophenol+ 2,3dichlorophenol binary systems have been correlated by the Wilson model, respectively.

Separation of phenylenediamine isomers by using decamethylcucurbit[5]uril

2021 ◽  
Author(s):  
Long Cao ◽  
Han-Ling Guo ◽  
Rui Lian Lin ◽  
Li-Fei Tian ◽  
Zhi-Hua Zhang ◽  
...  
Keyword(s):  
Experimental Data ◽  
Aqueous Solution ◽  
Solid State ◽  
Phenylenediamine Isomers

Using multiple techniques, this work studied the binding behaviors of decamethylcucurbit[5]uril (Me10Q[5]) with o-, m- and p-phenylenediamine (PDA) isomers both in solid state and in aqueous solution. Experimental data indicate...

Structural phase diagram for superconducting cuprates solid state processing for enhanced flux pinning

1992 ◽  
Vol 194 (1-2) ◽  
pp. 150-152 ◽  
Author(s):  
J.L. Tallon ◽  
D.M. Pooke ◽  
R.G. Buckley ◽  
M.R. Presland ◽  
A. Mawdsley ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Solid State ◽  
Flux Pinning ◽  
Structural Phase ◽  
Superconducting Cuprates ◽  
State Processing

Interfacial Microstructure Evolution Between Eutectic SnAgCu Solder and Al/Ni(V)/Cu Thin Films

2002 ◽  
Vol 17 (7) ◽  
pp. 1612-1621 ◽  
Author(s):  
M. Li ◽  
F. Zhang ◽  
W. T. Chen ◽  
K. Zeng ◽  
K. N. Tu ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Diagram ◽  
Solid State ◽  
Brittle Failure ◽  
Ternary Phase ◽  
Interfacial Microstructure ◽  
Snagcu Solder ◽  
Ball Shear ◽  
Aging Study ◽  
Eutectic Snpb

The evolution of interfacial microstructure of eutectic SnAgCu and SnPb solders on Al/Ni(V)/Cu thin films was investigated after various heat treatments. In the eutectic SnPb system, the Ni(V) layer was well protected after 20 reflow cycles at 220 °C. In the SnAgCu solder system, after 5 reflow cycles at 260 °C, the (Cu,Ni)6Sn5 ternary phase formed and Sn was detected in the Ni(V) layer. After 20 reflow cycles, the Ni(V) layer disappeared and spalling of the (Cu,Ni)6Sn5 was observed, which explains the transition to brittle failure mode after ball shear testing. The different interfacial reactions that occurred in the molten SnAgCu and SnPb systems were explained in terms of different solubilities of Cu in the two systems. The dissolution and formation of the (Cu,Ni)6Sn5phase were discussed on the basis of a Sn–Ni–Cu phase diagram. In the solid-state aging study of the SnAgCu samples annealed at 150 °C for up to 1000 h, the Ni(V) layer was intact and the intermetallic compound formed was Cu6Sn5 and not (Cu,Ni)6Sn5, which is the same as was observed for the eutectic SnPb system.

Technological Features of the Liquid-Solid State of the Boundary Layer in the Processes of Bimetallic Products

2022 ◽  
Vol 1049 ◽  
pp. 53-61
Author(s):  
Valeriy Lykhoshva ◽  
Dmitry Glushkov ◽  
Elena Reintal ◽  
Valeriy V. Savin ◽  
Ludmila Alexeyevna Savina ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Experimental Data ◽  
Boundary Layer ◽  
Solid State ◽  
Liquid Phase ◽  
Contact Zone ◽  
Thermal Field ◽  
Thermal State ◽  
Existence Time ◽  
Modeling Data

The hydrodynamic and thermal state in the contact zone of the layers of a bimetallic product obtained by pouring liquid iron onto a solid steel billet, which changes in time and is responsible for the strength of the diffusion joint and the geometric parameters of the transition layer, has been investigated. Simplified analytical dependences, mathematical modeling data and experimental results of the liquid phase existence time in the contact zone based on research of the melt velocities during pouring and changes in the thermal field are presented. It is shown that simplified calculations data coincide in order and are close in values ​​to the calculations of mathematical modeling and experimental data, which makes it possible to use them for preliminary rough estimates by technologists and metallurgists.

Synthesis, Characterization and Photophysical Properties of Rhenium(I) Complexe with 2-(naphthalen-2-yl)-1-phenyl-1H-imidazo[4,5-f][1,10]phenanthroline

2014 ◽  
Vol 988 ◽  
pp. 66-69
Author(s):  
Qiang Li ◽  
Le Li ◽  
Rong Feng Zhong ◽  
Hai Di Cai ◽  
Feng Zhao
Keyword(s):  
Experimental Data ◽  
Solid State ◽  
Photophysical Properties ◽  
Broad Band ◽  
High Energy ◽  
H Nmr ◽  
Emission Maximum ◽  
Broad Band Emission ◽  
Band Emission

In this paper, a Re(I) complex [Re(CO)3(E2)Cl], where E2 = 2-(naphthalen-2-yl)-1-phenyl-1H-imidazo[4,5-f][1,10]phenanthroline(E2), was synthesized and characterized by 1H NMR successfully. Experimental data confirm that Re(I) complex [Re(CO)3(E2)Cl] is high-energy-emitting one. The broad band emission upon excitation at λ = 400 nm with the emission maximum locates at λ = 581 nm in solid state and 614nm in CH2Cl2 solution were observed.

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