1976
DOI: 10.1002/pssa.2210360126
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Diffusion atomique du lithium dans l'alliage métallique amorphe Pd–Si

Abstract: Nous avons mesuré le coefficient de diffusion du lithium dans un alliage métallique amorphe Pd80Si20 obtenu par trempe rapide depuis l'état liquide. Ces mesures ont été faites entre 240 et 290°C. Ce coefficient de diffusion est compris alors entre 6 × 10−14 et 2 × 10−16 cm2/s. Il n'obéit pas à une loi d'Arrhenius contrairement au cas de la diffusion de l'argent dans le měme matériau d'après d'autres auteurs. Enfin la diffusion du lithium est au moins cent fois plus rapide dans l'alliage amorphe que dans le měm… Show more

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Cited by 50 publications
(7 citation statements)
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“…In the XRD measurements, the step size was 0.02 • with a count time of 4 • /min. The central positions 2Âmax of the diffusive amorphous maximum were used to give the nearest neighbor distance in the structural units of the glasses by following equation [15]:…”
Section: Methodsmentioning
confidence: 99%
“…In the XRD measurements, the step size was 0.02 • with a count time of 4 • /min. The central positions 2Âmax of the diffusive amorphous maximum were used to give the nearest neighbor distance in the structural units of the glasses by following equation [15]:…”
Section: Methodsmentioning
confidence: 99%
“…It is possible (17) that irradiation lowers the long-range order parameter and provides additional disordered regions. Such regions may form as a result of irradiation-induced local ionization, which breaks the interatomic bonds in its neighbourhood (18). Regions with less random packing for atoms having different sizes are Figure 3.…”
Section: Resultsmentioning
confidence: 99%
“…The crystal nucleation can be homogeneous and heterogeneous, in the last case the formation of crystals will be facilitated on the surfaces or so-called "frozen" crystallization centers [124,125]. The ratio of nucleation and growth rates is a very important factor in the formation of structure.…”
Section: Crystallization Processesmentioning
confidence: 99%