Results 41 to 50 of about 29,589 (294)

Theory of the thermoelectricity of intermetallic compounds with Ce or Yb ions

, 2005
The thermoelectric properties of intermetallic compounds with Ce or Yb ions are explained by the single-impurity Anderson model which takes into account the crystal-field splitting of the 4{\it f} ground-state multiplet, and assumes a strong Coulomb ...
D. Andreica, D. Huo, D. Huo, D. Jaccard, D. Jaccard, E. Gratz, F. Steglich, G. D. Mahan, G. D. Mahan, G. Nakamoto, G. Sparn, H. J. van Daal, H. Wilhelm, J. Sakurai, J. Sakurai, J. Sakurai, J. Sakurai, J. Sakurai, P. B. van Aken, P. Link, R. Casanova, R. Monnier, V. Zlatić, Y. Bando, Y. Ōnuki   +24 more
core   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source

Structural characterization of the scale formed on a Ti–46Al–8Nb alloy oxidised in air at 700 C [PDF]

, 2010
The structures of the oxide scale formed on a lamellar (gþ a2) Ti46Al8Nb alloy after heat-treatment in air at 700 C for 50 and 1000 h have been compared.
Lacaze, Jacques, Laffont, Lydia, Lafont, Marie-Christine, Senocq, François, Tchoupé Ngnekou, Paul Ervé, Viguier, Bernard   +5 more
core   +2 more sources

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Radiation response of multicomponent L12 γ′ precipitates strengthened high entropy alloys: The role of γ/γ′ interface

Journal of Materials Research and Technology
The advancement of high entropy alloys (HEAs) has stimulated the development of multicomponent L12 γ′ intermetallics, which exhibit both excellent strength and ductility.
Shasha Huang, Haijun Fu, Yaoxu Xiong, Wenyu Lu, Shihua Ma, Xuepeng Xiang, Ji-Jung Kai, Shijun Zhao   +7 more
doaj   +1 more source

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Resistance Rapid Heating of Aluminum Coatings in an Extreme High Vacuum–Adequate Atmosphere for Hot Stamping

Advanced Engineering Materials, EarlyView.
The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht, Alexander Schnettger, Ulrich Holländer, Sven Hübner, Bernd‐Arno Behrens, Hans Jürgen Maier   +5 more
wiley   +1 more source

Enhancing the irradiation resistance of L12 intermetallics by incorporating multiple principal elements through computational modeling

Journal of Materials Research and Technology
Ordered L12 γ′ Ni3Al intermetallics are essential strengthening components to maintain the high strength of Ni-based superalloys and recently developed high entropy alloys at elevated temperatures. Under service conditions, structural disorder is usually
Shasha Huang, Yaoxu Xiong, Shihua Ma, Jun Zhang, Haijun Fu, Biao Xu, Ji-Jung Kai, Shijun Zhao   +7 more
doaj   +1 more source

Phase stability, electronic, elastic and thermodynamic properties of Al-RE intermetallics in Mg-Al-RE alloy: A first principles study

Journal of Magnesium and Alloys, 2015
Electronic structure and elastic properties of Al2Y, Al3Y, Al2Gd and Al3Gd phases were investigated by means of first-principles calculations from CASTEP program based on density functional theory (DFT).
H.L. Chen, L. Lin, P.L. Mao, Z. Liu
doaj   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source