Results 51 to 60 of about 16,901 (160)

Metastable phase and nanotwin's formation in undercooled equiatomic solid solution medium entropy alloys

Journal of Materials Research and Technology
The metastability of undercooled melts plays a critical role in driving non-equilibrium solidification in equiatomic solid solution medium-entropy alloys (MEAs), yet remains largely unexplored.
Hailong Liang, Xiaolong Xu, Hongen An, Hongfu Wang   +3 more
doaj   +1 more source

Crystal structure of Co/Cu multilayers prepared by pulse potential electrodeposition with precisely controlled ultrathin layer thickness

AIP Advances, 2013
Co/Cu multilayers were electrodeposited in a single electrolyte using the pulse potential method and the layer thickness was precisely controlled in accordance with Faraday's law.
Naoto Takane, Hiroshi Narita, Yasuko Kurogouchi, Susumu Arai   +3 more
doaj   +1 more source

TEM and High Resolution TEM Investigation of Phase Formation in High Entropy Alloy AlCrFe2Ni2

Frontiers in Materials, 2020
The AlCrFe2Ni2 high entropy alloy exhibits an interesting microstructure, which changes considerably when various thermal treatments are applied. These changes are manifested mostly through the precipitation and dissolution of several BCC and FCC phases.
Eyal Eshed, Eyal Eshed, Suzan Abd El Majid, Menachem Bamberger, Shmuel Osovski   +4 more
doaj   +1 more source

Design of BCC/FCC dual-solid solution refractory high-entropy alloys through CALPHAD, machine learning and experimental methods

npj Computational Materials
Refractory high-entropy alloys (RHEAs) typically exhibit a body-centered cubic (BCC) structure with excellent strength but poor ductility, which limits their practical applications.
Longjun He, Chaoyue Wang, Mina Zhang, Jinghao Li, Tianlun Chen, Xianglin Zhou   +5 more
doaj   +1 more source

Lattice dynamics of MC60 compounds in FCC phase

, 2006
21 pages, 19 references, 11 ...
Ranjan, K., Kaurav, N., Varshney, Dinesh, Dharamvir, Keya, Jindal, V. K.   +4 more
openaire   +2 more sources

Comment on “Coexistence of fcc and hcp phases of C60” [PDF]

Chemical Physics Letters, 1993
The unusual features observed in TEM images of solution-grown fcc C60 crystallites (Z.G. Li and P.J. Fagan, Chem. Phys. Letters 194 (1992) 461) can be explained either by assuming the presence of a bct (body centered tetragonal) phase, or by identifying the bright spots with extremes of the projected charge density, suggesting a hcp phase.
openaire   +1 more source

Isomorphic phase transformation in shocked Cerium using molecular dynamics

EPJ Web of Conferences, 2011
Cerium (Ce) undergoes a significant (∼16%) volume collapse associated with an isomorphic fcc-fcc phase transformation when subject to compressive loading.
Germann T.C., Chen S.-P., Dupont V.
doaj   +1 more source

Coexistence of fcc and hcp phases of C60

Chemical physics letters, 1993
The unusual features observed in TEM images of solution-grown fcc C60 crystallites (Z.G. Li and P.J. Fagan, Chem. Phys. Letters 194 (1992) 461) can be explained either by assuming the presence of a bct (body centered tetragonal) phase, or by identifying the bright spots with extremes of the projected charge density, suggesting a hcp phase.
openaire   +1 more source

Engineering transformation pathways in an Al0.3CoFeNi complex concentrated alloy leads to excellent strength–ductility combination

Materials Research Letters, 2020
Guided by thermodynamic modeling, engineering phase transformation pathways via thermo-mechanical processing, in a complex concentrated alloy/high entropy alloy (HEA) of composition Al0.3CoFeNi, lead to a novel multi-scale microstructure consisting of ...
S. Dasari, A. Jagetia, V. Soni, B. Gwalani, S. Gorsse, R. Banerjee   +5 more
doaj   +1 more source

Phase stability of a eutectic high entropy alloy under extremes of pressures and temperatures

AIP Advances
Additively manufactured high-entropy alloys are of interest because of their unique combination of high yield strength and large ductility achieved with far-from-equilibrium crystalline phases and micro/nanostructure morphology.
Andrew D. Pope, Seth Iwan, Matthew P. Clay, Jie Ren, Wuxian Yang, Wen Chen, Yogesh K. Vohra   +6 more
doaj   +1 more source