Results 41 to 50 of about 65,655 (333)

Entropy and diffuse scattering: comparison of NbTiVZr and CrMoNbV

, 2015
The chemical disorder intrinsic to high entropy alloys inevitably creates diffuse scattering in their x-ray or neutron diffraction patterns. Through first principles hybrid Monte Carlo/molecular dynamics simulations of two BCC high entropy alloy forming ...
Widom, M.
core   +2 more sources

Atom clusters and vibrational excitations in chemically-disordered Pt357Fe [PDF]

, 2000
Inelastic nuclear resonant scattering spectra of Fe-57 atoms were measured on crystalline alloys of Pt3Fe-57 that were chemically disordered, partially ordered, and L1(2) ordered. Phonon partial density of states curves for Fe-57 were obtained from these
Alp, E. E., Fultz, B., Hu, M. Y., Stephens, T. A., Sturhahn, W., Sutter, J. P., Toellner, T. S.   +6 more
core   +1 more source

Microstructure and properties of AlCrFeNiMoNb high-entropy alloys coating on ZM5 magnesium alloy prepared by high-velocity air fuel (HVAF) spray

Journal of Materials Research and Technology, 2023
AlCrFeNiMoNb high-entropy alloys were successfully coated onto a ZM5 alloy using high-velocity air fuel spray (HVAF). Microcomputed tomography(micro-CT) results revealed that the porosity of the coating was only 0.36%, which demonstrates the coating has ...
Huifang Yin, Wenqing Ge, Ruqing Li, Li Zhou, Fengshi Yin, Huajian Sun, Jinzhao Sun, Jiqing Zhao   +7 more
doaj   +1 more source

Effect of Zr on precipitation kinetics of Fe-Cr-Al alloys

Heat Treatment and Surface Engineering
The present work investigated the effect of Zr on the precipitation behavior and mechanical properties of Fe-13.5Cr-4.73Al-2.07Mo-(0.34∼0.45)Nb-(0.65∼0.87)Ta-(0.11∼0.33)Zr (wt. %) alloys.
Ben Niu, Zhenhua Wang, Qing Wang, Sen Ge, Chuang Dong, Ruiqian Zhang   +5 more
doaj   +1 more source

Superconductivity in a new hexagonal high entropy alloy

, 2019
High entropy alloys (HEAs) are the new class of materials with an attractive combination of tunable mechanical and physicochemical properties. They crystallize mainly in cubic structures, however, for practical applications, HEAs with hexagonal close ...
Boullay, P., Breard, Y., Marik, Sourav, Motla, Kapil, Sajilesh, K. P., Singh, Deepak, Singh, R. P., Varghese, Maneesha   +7 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Electron Redistribution Drives Structural Ordering in Sulfate (SO4) Adlayers

ChemElectroChem
In this work, the coadsorption of SO4 and H2O at the Au(111)‐electrolyte interface is investigated. It is uncovered how electron redistribution between coadsorbates correlates with the formation of tightly packed (√3a) SO4‐adsorbate chains, which have ...
Marcus F. Nygaard, Martin L. Lundquist, Amanda S. Petersen, Olaf M. Magnussen, Jan Rossmeisl   +4 more
doaj   +1 more source

Ab initio vibrational free energies including anharmonicity for multicomponent alloys

, 2019
A density-functional-theory based approach to efficiently compute numerically exact vibrational free energies - including anharmonicity - for chemically complex multicomponent alloys is developed. It is based on a combination of thermodynamic integration
Duff, Andrew Ian, Freysoldt, Christoph, Grabowski, Blazej, Ikeda, Yuji, Körmann, F.H.W., Neugebauer, Jörg, Shapeev, Alexander, Srinivasan, P.   +7 more
core   +1 more source

Free energy and vibrational entropy difference between ordered and disordered Ni3Al [PDF]

, 1998
We have calculated free energy and vibrational entropy differences in Ni3Al between its equilibrium ordered structure and a disordered fcc solid solution.
Aguilar, J., Angelo, J. E., Baskes, M., Fultz, B., Holian, Brad Lee, Ravelo, R.   +5 more
core   +1 more source