Zobrazeno 1 - 10
of 305
pro vyhledávání: '"S. Hagège"'
Publikováno v:
Philosophical Magazine. 84:2651-2662
This work reports direct observations showing the effect of size and interface structure on premelting behaviour of nanoscale inclusions. Using in-situ transmission electron microscopy it was possible to observe premelting of individual Pb inclusions
Publikováno v:
Interface Science. 9:191-197
We address the shape and distribution of two-phase systems embedded within a third phase. To motivate this work, we begin by describing transmission electron microscopy observations of the configurations adopted by the solid and vapor phases of lead
Publikováno v:
Le Journal de Physique IV. :Pr4-13
Les structures atomique et electronique d'equilibre d'interfaces (001) MgO // (001) Cu a differentes activites d'oxygene sont etudiees par microscopie electronique a haute resolution et par spectroscopie de pertes d'energie des electrons. A forte pre
Autor:
S. Hagège
Publikováno v:
Interface Science. 7:85-101
Small inclusions of lead have been embedded in pure silicon by rapid quenching. They are topotactic-truncated octahedra with a smaller aspect ratio than the ones found in aluminum. They appear also on single and multiple twins as a bicrystalline unit
Autor:
S. Hagège, Sylvie Lartigue-Korinek
Publikováno v:
Materials Science Forum. :281-284
The rhombohedral twin orientation in alumina has been obtained by diffusion bonding and studied by transmission electron microscopy. It corresponds to a Σ7 near coincidence orientation with a grain boundary plane parallel to (0112). The grain bounda
Publikováno v:
Materials Science Forum. :473-476
Small inclusions of Pb have been embedded in pure Al, AlSi composites and pure Si by rapid quenching. Inclusions in aluminium are topotactic truncated octahedra undergoing large overheating and undercooling during in situ TEM thermal treatment. In th
Autor:
S. Hagège, Christian Colliex, D. Imhoff, Martin Hÿtch, Sébastien Laurent, J. Devaud, M. Backhaus-Ricoult
Publikováno v:
Materials Science Forum. :325-328
Atomic structure and electronic states of flat polar {111} MgO-Cu interfaces brought to equilibrium at different oxygen activities are studied by HREM and EELS. For high oxygen activity (10 -8 at 900°C) the final magnesia plane at the interface is c
Publikováno v:
Journal of Materials Science. 33:4035-4041
The αZr–ZrB2 eutectic, a model system for metal–boride interfaces, was prepared by r.f. induction melting from high-purity zirconium ingots and zirconium diboride powders. At the eutectic composition and depending on the cooling rate, the format
Autor:
Yannick Champion, S. Hagège
Publikováno v:
Solid State Phenomena. :63-76
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :727-733
Sequential ion implantation of Pb and Cd in Al at 425 K and 475 K respectively has been used to produce dense distributions of nanosized (Pb,Cd) inclusions with equiatomic composition. Pb and Cd form a simple eutectic system, but both elements are in