Results 81 to 90 of about 29,589 (294)

Niobium based intermetallics as a source of high-current/high-magnetic field superconductors

, 2001
The article is focused on low temperature intermetallic A15 superconducting wires development for Nuclear Magnetic Resonance, NMR, and Nuclear Magnetic Imaging, MRI, magnets and also on cryogen-free magnets.
B.A. Glowacki, Chen, D. Fray, Dukhovnii, Evetts, G. Chen, Glowacki, Glowacki, Hillman, Itoh, Kikuchi, Kosuge, Kosuge, M. Majoros, Matsumoto, Matthias, Osborne, Pickus, Pippard, Scanlan, Takeuchi, Takeuchi, Takeuchi, Tchikawa, Thieme, Togano, Togano, Wilson, Wordenweber, X.-Y. Yan, Y. Shi, Yamada   +31 more
core   +1 more source

Unlocking Multi‐Valley Energy Pockets and Interface‐Induced Phonon Filtering in InSb Thermoelectrics by Reaction‐Driven Interface Engineering

Advanced Functional Materials, EarlyView.
InSb, a narrow‐bandgap semiconductor with high carrier mobility, is promising for thermoelectric energy conversion but suffers from high lattice thermal conductivity and strong bipolar conduction. Here, in situ interface engineering using Co2O3 nanoprecursors forms hierarchical CoSbx/In2O3/CoSb3 heterostructures that enhance phonon scattering and ...
Jiwu Xin, Xiao Yang, Xiao‐Lei Shi, Chengyun Xu, Xi Ling, Pengyu Zhang, Jinfeng Dong, Yong Du, Haisheng Chen, Ting Zhang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

Gas-Solid Reaction Route toward the Production of Intermetallics from Their Corresponding Oxide Mixtures

Metals, 2016
Near-net shape forming of metallic components from metallic powders produced in situ from reduction of corresponding pure metal oxides has not been explored to a large extent.
Hesham Ahmed, R. Morales-Estrella, Nurin Viswanathan, Seshadri Seetharaman   +3 more
doaj   +1 more source

Carbon Shell‐Encapsulated PtFe Catalysts in High Temperature Polymer Electrolyte Membrane Fuel Cells: Balancing Molecular Sieving and Diffusion for Enhanced Reactant Access

Advanced Functional Materials, EarlyView.
Scanning electrochemical microscopy reveals reactant diffusion through porous carbon shells to PtFe cores, while the carbon‐encapsulated PtFe enables high‐performance HT‐PEMFC operation by sieving phosphate ions that induce catalyst poisoning. ABSTRACT High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) operating at 160°C on phosphoric
Myeong‐Geun Kim, Sourabh S. Chougule, Suji Lee, Young Sang Park, Jihyun Choi, Katie Heeyum Lim, Albert S. Lee, Hyun S. Park, Namgee Jung, Sung Jong Yoo   +9 more
wiley   +1 more source

New Ferritic Stainless Steel for Service Temperatures up to 1050 °C Utilizing Intermetallic Phase Transformation

Metals, 2019
A large number of thermodynamic simulations has been used to design a new Nb-Ti dual stabilized ferritic stainless steel with excellent creep resistance at 1050 °C through an optimal volume fraction of Laves (η) phase stabilized by the alloying
Timo Juuti, Timo Manninen, Sampo Uusikallio, Jukka Kömi, David Porter   +4 more
doaj   +1 more source

Electronic structure and properties of (TiZrNbCu)_1-xNi_x high entropy amorphous alloys

, 2016
A comprehensive study of selected properties of four (TiZrNbCu)_1-xNi_x (x \le 0.25) amorphous high entropy alloys (a-HEA) has been performed. The samples were ribbons about 20 \mum thick and their fully amorphous state was verified by X-ray diffraction ...
Babić, Emil, Biljaković, Katica, Figueroa, Ignacio A., Kuršumović, Ahmed, Pajić, Damir, Remenyi, György, Ristić, Ramir, Starešinić, Damir, Zadro, Krešo   +8 more
core   +3 more sources

Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet

Advanced Materials, EarlyView.
Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens, Francisco Romero‐Lara, Trisha Sai, Kalyan Biswas, Manuel Vilas‐Varela, Thomas Frederiksen, Diego Peña, Fabian Schulz, Jose Ignacio Pascual   +8 more
wiley   +1 more source

Influence of Sludge Particles on the Fatigue Behavior of Al-Si-Cu Secondary Aluminium Casting Alloys

Metals, 2018
Al-Si-Cu alloys are the most widely used materials for high-pressure die casting processes. In such alloys, Fe content is generally high to avoid die soldering issues, but it is considered an impurity since it generates acicular intermetallics (β-Fe ...
Lorella Ceschini, Alessandro Morri, Stefania Toschi, Anton Bjurenstedt, Salem Seifeddine   +4 more
doaj   +1 more source

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source

Effect of Small Additions of Cr, Ti, and Mn on the Microstructure and Hardness of Al–Si–Fe–X Alloys

Metals, 2019
The Al⁻Si⁻Fe system has drawn the attention of the scientific community due to its capacity to replace parts in several manufacturing industries, as this alloy system is very sensitive to small additions of transition metals.
Víctor A. Aranda, Ignacio A. Figueroa, Gonzalo González, J. Alejandro García-Hinojosa, Gabriel A. Lara-Rodríguez   +4 more
doaj   +1 more source