Journal ArticleDOI
High-flux current effects in interfacial reactions in Au–Al multilayers
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In this article, the influence of high dc currents on the interaction between thin Au-Al layers was investigated over the temperature range 400-500°C, in both the absence and the presence of a current at all levels.Abstract:
The influence of high dc currents (up to 1019 A cm−2) on the interaction between thin Au-Al layers was investigated over the temperature range 400-500°C In contrast with earlier diffusion couple results, only four of the five intermetalllic compounds in this system were observed, in both the absence and the presence of a current at all levels The intermetallics Au5 Al2 and Au2 Al were the dominant products while AuAl and AuAl2 were relatively insignificant The latter showed little change, growing only to a total thickness of a few micrometres, regardless of the magnitude of the current density and time of annealing While the sequence of formation of the different intermetallics was not affected by the current, the incubation time and rate of growth of the layers were strongly influenced The incubation time for the appearance of a measurable product layer was markedly reduced by the current, by nearly two orders of magnitude in some cases The effect of the current on the nucleation of the prread more
Citations
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1000 at 1000: The effect of electric field and pressure on the synthesis and consolidation of materials: a review of the spark plasma sintering method.
TL;DR: In this article, the use of electric current to activate the consolidation and reaction-sintering of materials is reviewed with special emphasis of the spark plasma sintering method, which has been used extensively over the past decade with results showing clear benefits over conventional methods.
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Electric Current Activation of Sintering: A Review of the Pulsed Electric Current Sintering Process
TL;DR: In this paper, the authors focus on the fundamental aspects of the sintering process and identify the intrinsic benefits of the use of the parameters of current (and pulsing), pressure, and heating rate.
Journal ArticleDOI
The Diffusion of Solids
TL;DR: In view of the interest attaching to the vaporisation and diffusion of solids, the following observations may be worthy of record as discussed by the authors, which may be seen as a good starting point for further research.
Journal ArticleDOI
Fundamental investigations on the spark plasma sintering/synthesis process: II. Modeling of current and temperature distributions
Umberto Anselmi-Tamburini,Umberto Anselmi-Tamburini,Silvia Gennari,Javier E. Garay,Zuhair A. Munir +4 more
TL;DR: In this article, current and heat generation gradients were evaluated in the radial and axial directions for both cases, in order to investigate current and temperature distributions under typical spark plasma sintering (SPS) conditions.
Journal ArticleDOI
Fundamental investigations on the spark plasma sintering/synthesis process: I. Effect of dc pulsing on reactivity
TL;DR: The characteristics of pulsing patterns in the SPS process were investigated in this paper, and the effect of the pulsing on the reactivity between Si and Mo was determined Pulsing patterns were composed of consecutive 3-ms peaks separated by a period of no current.
References
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Journal ArticleDOI
Electromigration in metals
Paul S. Ho,Thomas Kwok +1 more
TL;DR: In this article, an overview on the current understanding of electromigration in metals is provided. But the discussion is focused on studies in bulk metals and alloys and not on the studies in metallic thin films.
Journal ArticleDOI
The Diffusion of Solids
TL;DR: In view of the interest attaching to the vaporisation and diffusion of solids, the following observations may be worthy of record as discussed by the authors, which may be seen as a good starting point for further research.