Results 211 to 220 of about 16,942 (259)

Investigation of Electrical Discharge Machining Micro Holes in CoCrFeNiZr_0.5 Eutectic High Entropy Alloys. [PDF]

Micromachines (Basel)
Fan Q, Liu L, Su G, Zhang C, Zhu M, Cheng K.   +5 more
europepmc   +1 more source

Liquid-Phase Synthesis and Regulatory Mechanisms of Nano-Nickel Powders for MLCC Inner Electrodes. [PDF]

Nanomaterials (Basel)
Quan Z, Wang J, He H, Wang X, Ban L, Ma X, Zhao H.   +6 more
europepmc   +1 more source

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Phase separation in fcc structures

Phase Transitions, 1982
Abstract The phase diagram of segregating binary alloys with face-centered-cubic structure is calculated in the tetrahedron approximation of the cluster variation method. The calculation is based on a model consisting of pairwise interactions between nearest-neighbor atoms only.
M. Rodríguez-Rodrïguez, J. L. Morán-López   +1 more
openaire   +1 more source

Symmetry change at the fcc–distorted-fcc phase transition of lanthanides under pressure

Physical Review B, 1994
The crystal structure of the distorted-fcc high-pressure phase of the rare-earth elements is discussed in connection with the Landau theory of phase transition. From x-ray-diffraction spectra the irreducible representation ${\mathit{E}}_{\mathit{u}}^{\mathit{L}}$ is found to drive the (almost) continuous transition fcc\ensuremath{\rightarrow}distorted ...
, Porsch, , Holzapfel
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Lattice dynamics of the metastable fcc phase of lanthanum

Physical Review B, 1985
A single crystal of the metastable fcc phase of La was grown of sufficient volume for the study of the lattice dynamics of this phase by coherent inelastic-neutron-scattering techniques. The phonon dispersion curves have been measured along the (xi00), (xixi0), (xixixi), and (0xi1) symmetry directions at room temperature and at 10 K.
, Stassis, , Smith, , Harmon, , Ho, , Chen   +4 more
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The origin and the effect of the fcc phase in sintered HfNbTaTiZr

Materials Letters, 2021
Abstract The growing interest in preparing refractory high entropy alloys via powder metallurgy reveals significant sensitivity to impurities, influencing the phase composition and microstructure and, consequently, the mechanical properties. Mechanical alloying of commercial purity powders is a cost-effective way of material preparation leading to a ...
František Lukáč, Monika Vilémová, Mariana Klementová, Peter Minárik, Tomáš Chráska   +4 more
openaire   +1 more source

Phase stabilities of fcc Ti nanocrystals

Solid State Communications, 2004
A model for the equilibrium transition size and temperature between hcp and fcc structure of nanocrystals Ti has been established in terms of the effect of surface stress on the internal pressure of nanocrystals. It was found that as size and temperature decreased, the relative stability of fcc structure in comparison with hcp structure increased.
Z.P. Chen, Z. Wen, Q. Jiang
openaire   +1 more source