Article
Chemistry, Multidisciplinary
Gabriela Huminic, Angel Huminic
Summary: This study investigates the use of new working fluids NH3/IL+ CNMs solutions as an alternative to conventional working fluids. The results indicate that by adding nanomaterials, the thermal conductivity of the solution increases while its viscosity and specific heat decrease.
Article
Chemistry, Physical
Tomasz Gancarz
Summary: In this work, the effect of Ga addition to Bi-Ga alloys on density, surface tension, and viscosity was experimentally studied. The thermophysical properties of the Bi-Ga system in the liquid state were determined using the discharge crucible method, and the results showed good correlation with the literature data. The segregation in the liquid phase had a significant impact on the changes in the studied properties. Reduction of surface tension and increase in viscosity were observed with the addition of Bi content in the Bi-Ga system.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
E. Kiumarsian, S. M. Hosseini, M. M. Alavianmehr
Summary: In this study, the densities and thermodynamic properties of 6 liquid adipates were correlated and predicted using a proposed perturbed hard-chain equation of state with a Yukawa tail term. The results showed that the equation of state could accurately predict the densities and some derived thermodynamic properties of the adipates, and compared favorably with a Tait-type equation cited in literature.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Tomasz Gancarz
Summary: This study determined the thermophysical properties of Ga-Pb alloys and provides valuable references for the development of energy storage materials.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Physics, Fluids & Plasmas
E. M. Apfelbaum
Summary: A model is developed for calculating the thermophysical properties of low-temperature indium plasma, including pressure, internal energy, electrical and thermal conductivities, and thermal power. The model is based on a chemical approach and a relaxation time approximation, allowing for the determination of the chemical composition and other thermodynamic values. This study provides new data for indium plasma properties in an area with no prior published data, except for semi-empirical models. The model also includes fitting analytical relations for practical applications.
PHYSICS OF PLASMAS
(2023)
Article
Chemistry, Physical
Oscar Nordness, Pratik Kelkar, Yuanyuan Lyu, Michael Baldea, Mark A. Stadtherr, Joan F. Brennecke
Summary: This study introduces an SVR machine learning framework for predicting properties of imidazolium ionic liquids by extracting universal features from COSMO-RS sigma profiles. After training and testing the model, it shows the ability to predict viscosity, conductivity, and density of unobserved ILs using the selected features. The performance of the model is compared with different kernels through cross-validation to ensure unbiased results.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Review
Materials Science, Multidisciplinary
Markus Mohr, Hans-Joerg Fecht
Summary: The advancement of metallic alloys is driven by alloy development and requires suitable production and processing routines. Solid-state processing is not affected by gravitational effects, while processing of liquids is strongly influenced by earth's gravity. Experiments in microgravity allow researchers to avoid these influences and improve understanding of thermophysical properties and liquid-solid transitions.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Chemistry, Physical
Oliver R. Gittus, Fernando Bresme
Summary: The study found that the CHON-2017_weak force field predicts the thermophysical properties of water more accurately than the water-2017 force field, suggesting potential avenues for improvement including the dipole moment to quadrupole moment ratio, self-diffusion coefficient, and gas phase vibrational frequencies.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Alexandra Dobosz, Rada Novakovic, Tomasz Gancarz
Summary: Liquid metals have become increasingly important as functional materials in recent years. This work investigated the thermophysical properties of liquid Ga-Sn-Zn alloys with different compositions, showing discrepancies between experimental data and model predictions. Various models were used to analyze viscosity, density, and surface tension of the alloys.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Vladimir S. Tsepelev, Yuri N. Starodubtsev, Nadezhda P. Tsepeleva
Summary: The study demonstrates that the thermophysical properties of liquid pipe steel exhibit different characteristics in different temperature regions, possibly due to the thermal decomposition of clusters caused by temperature. The melt after vacuum degassing has a narrower temperature transition zone and differs from the melt without degassing. At temperatures above 1920K, the surface tension of the melt without vacuum degassing drops sharply, possibly due to the thermal decomposition of sulfides and oxides.
Article
Thermodynamics
A. O. Korshunov, A. Markin, S. R. Kushnir, M. A. Lazarev, A. B. Radbil'
Summary: In this study, the thermophysical properties of phytosterols were investigated using thermogravimetry and differential scanning calorimetry. The thermal stability, melting and crystallization characteristics were determined, and the effects of composition and nature of phytosterols on their thermophysical properties were concluded.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Mingshuo Zhou, Chenxu Ni, Chih-Li Sung, Siyu Ding, Xingjian Wang
Summary: This paper aims to accurately predict the thermodynamic and transport properties as well as vapor-liquid equilibrium behavior using a data-driven model based on Gaussian process regression. The results show that this model outperforms traditional methods and neural network models in multiple parameter evaluations.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Sai Yagnamurthy, Dibakar Rakshit, Sanjeev Jain, Kaiser Ahmed Rocky, Md Amirul Islam, Bidyut Baran Saha
Summary: Novel activated carbon-based composite adsorbents were studied for thermophysical properties and adsorption characterization with difluoromethane refrigerant, demonstrating significantly higher thermal diffusivities and thermal conductivity in the perpendicular plane of the composites. The adsorption uptake characteristics were gravimetrically studied in the temperature range of 30-70 degrees C, leading to significant enhancements in volumetric cooling energy up to 78% over that of powdered activated carbon. Successful fitting of Dubinin-Astakhov and Toth models for the adsorption isotherms was observed, with the D-A model offering better fits.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Materials Science, Ceramics
Olga N. Kondrat'eva, Maria N. Smirnova, Galina E. Nikiforova, Alexander Tyurin, Marina Likholetova, Eugene Shevchenko, Timofey N. Igonin, Sergey Yu Gavrilkin, Alexey Yu Tsvetkov
Summary: This paper reports on the experimental study of the thermophysical properties of zinc gallate, which is a promising material for various applications. The temperature dependence of heat capacity, entropy, enthalpy change and Gibbs energy function of ZnGa2O4 were obtained. The thermal diffusivity and thermal conductivity of ZnGa2O4 ceramics were also measured. These findings are important for improving materials based on ZnGa2O4, especially for applications in LED and power semiconductor devices.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Thaissa S. Beck, Mara de Mattos, Carlos R. T. Jortieke, Jean C. B. Vieira, Camila M. Verdi, Roberto C. V. Santos, Michele R. Sagrillo, Aline Rossato, Larissa da Silva Silveira, Clarissa P. Frizzo
Summary: Amino acid-based ionic liquids exhibit specific properties in thermal stability, heat capacity, antimicrobial activity, and cytotoxicity. It was found in the study that amino acid-based anions can reduce the thermal stability of mono and dicationic AAILs, and AAILs with more carbon chains have lower glass transition temperature.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Thermodynamics
A. Schmon, K. Aziz, M. Luckabauer, G. Pottlacher
INTERNATIONAL JOURNAL OF THERMOPHYSICS
(2015)
Article
Thermodynamics
B. Wilthan, W. Schuetzenhoefer, G. Pottlacher
INTERNATIONAL JOURNAL OF THERMOPHYSICS
(2015)
Article
Materials Science, Multidisciplinary
Alexander Schmon, Kirmanj Aziz, Gernot Pottlacher
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2015)
Article
Thermodynamics
K. Aziz, A. Schmon, E. Kaschnitz, J. Rattenberger, G. Pottlacher
INTERNATIONAL JOURNAL OF THERMOPHYSICS
(2016)
Article
Thermodynamics
Matteo Luisi, Boris Wilthan, Gernot Pottlacher
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2015)
Article
Thermodynamics
Thomas Leitner, Anna Werkovits, Siegfried Kleber, Gernot Pottlacher
Summary: The study utilized a linear model to describe the temperature dependence of surface tension and density of W360, with uncertainties in the fit parameters analyzed. The data compared to pure iron showed overlap in liquid density but a significant difference in surface tension.
INTERNATIONAL JOURNAL OF THERMOPHYSICS
(2021)
Article
Chemistry, Physical
Mateusz Skalon, Benjamin Meier, Thomas Leitner, Siegfried Arneitz, Sergio T. Amancio-Filho, Christof Sommitsch
Summary: Powder deterioration influences the mechanical properties of printed material by destabilizing the molten metal pool during printing, facilitating axial flow along the melt track axis. Increased oxygen content has minimal impact on surface tension and density of the melt, but a difference in temperature-dependent surface tension was observed.
Article
Thermodynamics
Peter Pichler, Thomas Leitner, Erhard Kaschnitz, Johannes Rattenberger, Gernot Pottlacher
Summary: This paper presents the thermophysical properties of NIST SRM 1155a stainless steel, including temperature dependent enthalpy, density, electrical resistivity, specific heat capacity, thermal conductivity, thermal diffusivity, and surface tension for the liquid phase. These data are crucial for simulating additive manufacturing and metal processing processes.
INTERNATIONAL JOURNAL OF THERMOPHYSICS
(2022)
Article
Thermodynamics
Anna Werkovits, Thomas Leitner, Gernot Pottlacher
HIGH TEMPERATURES-HIGH PRESSURES
(2020)
Article
Thermodynamics
Yuriy Plevachuk, Vasyl Sklyarchuk, Gernot Pottlacher, Thomas Leitner, Peter Svec, Peter Svec, Lubomir Orovcik, Marta Dufanets, Andriy Yakymovych
HIGH TEMPERATURES-HIGH PRESSURES
(2020)
Article
Thermodynamics
K. Aziz, A. Schmon, G. Pottlacher
HIGH TEMPERATURES-HIGH PRESSURES
(2015)
Article
Thermodynamics
Wolffram Schroeer, Gernot Pottlacher
HIGH TEMPERATURES-HIGH PRESSURES
(2014)
Article
Thermodynamics
K. Aziz, A. Schmon, G. Pottlacher
HIGH TEMPERATURES-HIGH PRESSURES
(2014)