Article
Materials Science, Multidisciplinary
Dmytro S. Kozak, Vladimir S. Tsepelev, Viktor V. Konaskov, Viktor V. Vyukhin, Vladislav Y. Zadorozhnyy, Andrey Bazlov, Askar R. Kvaratskheliya, Andrey A. Tsarkov, Jan F. M. Van Impe
Summary: The study investigated the physical properties of Fe48Cr15Mo14C15B6Y2 alloy in liquid state at high temperature. It found that the alloy's viscosity, electrical resistivity, and density decrease with temperature up to 1700 degrees C, with an abnormal increase in viscosity noted in the temperature range from 1360 to 1550 degrees C. Measurements of electrical resistivity and density did not show any anomalies in the same temperature range.
Article
Thermodynamics
R. N. Abdullaev, A. Sh Agazhanov, A. R. Khairulin, D. A. Samoshkin, S. Stankus
Summary: In this study, thermophysical properties of pure magnesium were measured using a high-temperature isothermal drop calorimeter and laser flash method. The results showed that the thermal conductivity and thermal diffusivity of magnesium decrease by about 1.5 times during melting.
JOURNAL OF ENGINEERING THERMOPHYSICS
(2022)
Article
Materials Science, Ceramics
A. I. Savvatimskiy, S. V. Onufriev, G. V. Valyano, A. A. Nepapushev, D. O. Moskovskikh
Summary: This study investigated the physical properties of tantalum carbide at high temperatures ranging from 2000 to 5500 K. The experimental results revealed that this composition of carbide melts within a narrow temperature range of 4100-4300 K, and the enthalpy values at the beginning and end of melting were measured. Additionally, the specific heat and electrical resistance of the solid and liquid states of tantalum carbide were determined experimentally. The study also provides new data on the liquid phase properties of tantalum carbide.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Chemical
Andressa Carla Cintra da Silva, Ana Paula Biz, Daniel Angelo Longhi, Franciny Campos Schmidt
Summary: This study experimentally determined the physical and thermophysical properties of coffee extract and evaluated models for predicting these properties. The results showed that these properties were influenced by the temperature and concentration of the solution and can be used to solve heat transfer problems involved in coffee extract.
JOURNAL OF FOOD ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Jannatun Nawer, Takehiko Ishikawa, Hirohisa Oda, Hideki Saruwatari, Chihiro Koyama, Xiao Xiao, Stephan Schneider, Matthias Kolbe, Douglas M. Matson
Summary: This study introduces a new method for quantifying facility performance under uncertainties associated with thermophysical property measurement. Four key thermophysical properties of liquid Au were measured in microgravity environment using the Electrostatic Levitation Furnace (ELF) onboard the ISS and the TEMPUS Electromagnetic Levitation (EML) facility on a Novespace Zero-G aircraft. The results from both facilities show excellent agreement with published literature values, and the accuracy and precision of the measured values were evaluated to assess facility performance.
Article
Metallurgy & Metallurgical Engineering
N. Z. Abdulkadirova, A. G. Gamzatov, A. M. Aliev, P. Gebara
Summary: This study investigates the heat capacity, magnetocaloric effect, thermal diffusivity, and electrical resistivity of the LaFe11.1Mn0.1Co0.7Si1.1 alloy in different temperature and magnetic field conditions. The experiments reveal a sharp decrease in electrical resistivity followed by restoration to metallic behavior within a narrow temperature range. Additionally, a direct relationship between the increment of temperature and the change in resistivity is observed at a magnetic field of 1.8T.
PHYSICS OF METALS AND METALLOGRAPHY
(2022)
Article
Chemistry, Physical
Mustapha Zidane, El Mehdi Salmani, Arnab Majumdar, Meryem Elmoulat, Mustapha Bghour, A. Labrag, Hamid Ez-Zahraouy, Abdelilah Benyoussef, Rajeev Ahuja
Summary: The thermodynamic and physical properties of Helium and Hydrogen mixtures are investigated using density functional theory. The equations of state, energy, band structure, electron properties, and electrical resistivity of the mixtures are calculated and compared for different crystal structures. The study reveals the impact of doping on the thermodynamic properties of these mixtures.
Article
Materials Science, Multidisciplinary
S. Terlicka, A. Debski, A. Sypien, W. Gasior, A. Budziak
Summary: This study focused on pioneering dilatometric measurements and experimental determination of the standard enthalpy of formation for alloys and intermetallic phases of the Ag-Mg system. The research included preparation, structural analysis, and dilatometric studies of alloys and intermetallic phases, showing an increase in linear coefficient of thermal expansion with the addition of Mg to Ag. The standard enthalpies of formation of the prepared alloys were consistent with literature data.
MATERIALS TODAY COMMUNICATIONS
(2021)
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
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
Chemistry, Physical
P. R. Fernando, A. R. E. Prinsloo, C. J. Sheppard
Summary: The magnetic phase diagram of the (Cr90Ir10)(100-y)V-y alloy system was constructed based on T-N values obtained from measurements of electrical resistivity, Seebeck coefficient, and magnetization as a function of temperature. The study suggests a transition from commensurate (C) spin density wave (SDW) to incommensurate (I) SDW phase induced by V at a transition temperature T-CI in certain samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Umit Bayram
Summary: Directional solidification was performed on an Al-11.75 wt pct Si-2.15 wt pct Ti irregular eutectic alloy with different growth rates. It was found that the interflake spacing decreased with increasing growth rates. The fusion enthalpy and heat difference between solid and liquid phases were measured by DSC.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Andrew F. Zhou, Elluz Pacheco, Badi Zhou, Peter X. Feng
Summary: With advancements in nanofabrication technology, nitrogen-doped ultrananocrystalline diamond nanostripes with widths in the order of tens of nanometers have been successfully fabricated. The study focused on the size-dependent electron transport properties of these nanostructures, showing a dramatic increase in electrical resistivity as the width of the nanostripes decreases. The variability in conductivity is attributed to diffusive scattering on the nanostripe surfaces and grain boundary scattering.
Article
Materials Science, Ceramics
Michel B. Mama Toulou, Paul C. M. Fossati, Cindy L. Rountree
Summary: Sodium borosilicate glasses are crucial for various industrial applications, but comprehensive understanding of their properties is lacking. This study employs molecular dynamics simulations with two reliable empirical potentials to investigate thermophysical and mechanical properties in a wide composition range. The enthalpy of mixing, which is rarely studied but vital for understanding the thermodynamics of these glasses, is particularly focused on.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Biochemistry & Molecular Biology
Salomao Dos Santos Costa, Juliana Pereira da Silva, Matheus Moraes Biondo, Edgar Aparecido Sanches, Marcos Marques Da Silva Paula, Francisco Xavier Nobre, Jose Anglada Rivera, Yohandys Alexis Zulueta, Milton S. Torikachvili, David Vieira Sampaio, Marcos Vinicius Dias Vermelho, Stefan Talu, Lianet Aguilera Dominguez, Yurimiler Leyet
Summary: The temperature dependence of the electrical properties of composites formed by biphasic sodium titanate and poly(o-methoxyaniline) was studied. The structural details were confirmed by X-ray diffraction, and the thermal properties were analyzed by thermogravimetry and differential thermal analysis. The complex impedance spectroscopy measurements showed that the electrical resistivity of the composites increased with POMA content, and the highest POMA content exhibited a less noticeable temperature coefficient of resistivity.
Article
Materials Science, Multidisciplinary
Matthias Leitner, Thomas Leitner, Alexander Schmon, Kirmanj Aziz, Gernot Pottlacher
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2017)
Article
Materials Science, Multidisciplinary
L. Resch, G. Klinser, E. Hengge, R. Enzinger, M. Luckabauer, W. Sprengel, R. Wuerschum
JOURNAL OF MATERIALS SCIENCE
(2018)
Article
Materials Science, Multidisciplinary
Masakazu Tane, Hiroki Nishiyama, Akihiro Umeda, Norihiko L. Okamoto, Koji Inoue, Martin Luckabauer, Yasuyoshi Nagai, Tohru Sekino, Takayoshi Nakano, Tetsu Ichitsubo
PHYSICAL REVIEW MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
L. Resch, M. Luckabauer, N. Helthuis, N. L. Okamoto, T. Ichitsubo, R. Enzinger, W. Sprengel, R. Wuerschum
PHYSICAL REVIEW MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Norihiko L. Okamoto, Shuhei Kasatani, Martin Luckabauer, Robert Enzinger, Satoshi Tsutsui, Masakazu Tane, Tetsu Ichitsubo
PHYSICAL REVIEW MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Amin Ebrahimi, Mohammad Sattari, Scholte J. L. Bremer, Martin Luckabauer, Gert-willem R. B. E. Romer, Ian M. Richardson, Chris R. Kleijn, Marcel J. M. Hermans
Summary: The absorptivity of a material is a major uncertainty in numerical simulations of laser welding and additive manufacturing. To improve the prediction capability, an enhanced absorption model is utilized in this study, and the results are compared with experimental data. The study reveals the crucial effect of absorptivity on the physics of internal flow in laser material processing.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Composites
Sebastiaan Van den Berg, Martin Luckabauer, Sebastiaan Wijskamp, Remko Akkerman
Summary: Currently, obtaining consistent values for the anisotropic electrical conductivity of fabric ply based thermoplastic composites is challenging. This study used six-probe voltage measurements combined with a numerical evaluation method to obtain the anisotropic electrical conductivity of this type of material. The effect of probe distance and specimen dimensions on the test results was investigated. The measurements showed low specimen to specimen variability and the obtained electrical conductivities agreed with values obtained by the rule of mixtures and the two-probe measurement method. The conducted research demonstrates that both the in- and out-of-plane electrical conductivity of polymer composites reinforced with carbon fabrics can be reliably determined simultaneously with one experiment.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Elisabeth Hengge, Jakob Ihrenberger, Eva-Maria Steyskal, Ricardo Buzolin, Martin Luckabauer, Christof Sommitsch, Roland Wuerschum
Summary: The synthesis of bulk nanoporous copper from a copper-manganese alloy by electrochemical dealloying and free corrosion, as well as the electrochemical behavior and oxide formation of the dealloyed structures, have been investigated. The nanoporous copper exhibited suppressed reordering processes and the formation of a hybrid composite of copper and manganese oxide on its surface. This unique heterogeneous structure shows potential for applications in energy storage and catalysis.
NANOSCALE ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Scholte J. L. Bremer, Martin Luckabauer, Gert-Willem R. B. E. Roemer
Summary: In Laser-based Directed Energy Deposition (L-DED), the spatial and temporal thermal cycles induced by laser strongly influence the microstructure of deposited layers. This study investigates the effects of three different laser intensity profiles on the shape of the melt pool and resulting microstructure. The results show that the shape of the laser beam significantly impacts the melt pool morphology and solidification characteristics, thus affecting the resulting microstructure. By analyzing the correlation between the thermal gradient-growth rate ratios and the grain shapes and texture, the beam profile can be used to control the microstructure of deposited parts during L-DED.
MATERIALS & DESIGN
(2023)
Article
Engineering, Manufacturing
Ton Bor, Marijn de Leede, Freek Deunk, Jesper Lind, Wout Lievestro, Henk-Jan Smit, Rob Aries, Vishal Dolas, Nick Helthuis, Martin Luckabauer, Remko Akkerman
Summary: The Friction Screw Extrusion Additive Manufacturing (FSEAM) process is a newly created process for additive manufacturing of low weight-high strength aluminum and magnesium alloys in the solid state. The study focused on the influence of the feed ratio on the quality, microstructure and mechanical properties of the fabricated builds. Solid builds free from defects were achieved at higher feed ratios, while lower feed ratios resulted in fabrication defects and reduced elongation values.
ADDITIVE MANUFACTURING
(2023)
Article
Materials Science, Coatings & Films
P. Farjam, M. Luckabauer, E. G. de Vries, V. R. Rangel, E. E. G. Hekman, G. J. Verkerke, J. Rouwkema
Summary: Long-term fixation of orthopaedic implants can be enhanced by depositing bioactive bone-like coatings on the implants. This study identified the optimal parameters for depositing osteo-conductive Calcium Phosphate (CaP) coatings on PolyCarbonate-Urethane (PCU) foils. The deposited CaP coatings demonstrated high stability and did not affect cell viability or proliferation, while enhancing cell-mediated calcium deposition. This presents a promising method for integrating PCU implants onto bone.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Norihiko L. Okamoto, Shuhei Kasatani, Martin Luckabauer, Masakazu Tane, Tetsu Ichitsubo
SCRIPTA MATERIALIA
(2020)
Article
Materials Science, Multidisciplinary
Martin Luckabauer, Tomoki Hayashi, Hidemi Kato, Tetsu Ichitsubo
Proceedings Paper
Materials Science, Multidisciplinary
Martin Luckabauer, Elisabeth Hengge, Gregor Klinser, Wolfgang Sprengel, Roland Wuerschum
MAGNESIUM TECHNOLOGY 2017
(2017)
Article
Materials Science, Multidisciplinary
E. Hengge, R. Enzinger, M. Luckabauer, W. Sprengel, R. Wuerschum
PHILOSOPHICAL MAGAZINE LETTERS
(2018)