Surface tension of binary and ternary aluminium alloys of the systems Al-Si-Mg and Al-Zn-Mg

Goicoechea, J.; García‐Cordovilla, C.; Louis, E.; Pamies, A.

doi:10.1007/pl00020247

Cited by 62 publications

(28 citation statements)

References 12 publications

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“…38 This indicates an increase of cell wall stability, opposite to our experimental findings. On the other hand we have to consider that metal films are stabilised by oxide networks also located in the cell wall surface.…”

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confidence: 99%

Kinetics of coalescence in liquid aluminium foams

2011

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The cell wall rupture kinetics for a collection of AlSi9 foam samples kept at a constant temperature over the melting point for a long time period (700 s) has been characterized by in situ X-ray radioscopy. The images obtained have been computed by using image analysis algorithms allowing the identification of the cell wall ruptures in the molten state. The time evolution, the spatial distribution and the number of cell wall rupture events are studied in this work. The cell wall rupture rate was determined for the first time in liquid aluminium foams. Part of the results obtained has been explained in terms of the spatial distribution of temperature obtained by different heating configurations and measured by thermographic techniques. The progressive coarsening and density redistribution of the cellular structure and the drainage due to gravity have been also considered. The local temperature seems to be critical for the rupture phenomena and the temperature distribution clearly affects the foam density distribution.

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confidence: 99%

Kinetics of coalescence in liquid aluminium foams

2011

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“…31 The present measurements show that further alloying and/or addition of particles reduces surface tension. Surface tensions of liquid AlSi11, AlSi6Cu4 and especially of AlSi9 + SiC foams are lower than those of the corresponding bulk alloys.…”

mentioning

confidence: 49%

“…The obtained results for foams of AlSi6Cu4, AlSi11 and AlSi9 + 5, 10 and 20 vol% SiC are presented in Table 1, together with bulk values extracted from the literature for comparison. [30][31][32][33]35 Note that the errors of the analysed foam properties shown are the standard deviations of the results taken over many tting runs.…”

Section: Viscosity and Surface Tensionmentioning

confidence: 99%

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Analysis of liquid metal foams through X-ray radioscopy and microgravity experiments

et al. 2014

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Complex liquid structures such as metallic foams were produced in a furnace that allowed in situ X-ray monitoring of the evolution of the structure and distribution of the liquid in the foam. The experiments were carried out during parabolic flights which provided varying levels of gravity. The evolution of the characteristic liquid fraction profiles due to gravity induced drainage was measured and analysed in terms of the foam drainage equation, obtaining viscosity and surface tension by fitting solutions of the equation to the experimental data. The surface tension of the melt in the foam was decreased up to 40%. Effective viscosities of up to 139 times the viscosity of a pure bulk melt were observed. These effects could be attributed to the smaller influence of solid particles dispersed in the melt and the larger influence of the complex foam structure.

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“…The radius of the Sn catalyst droplets used to produce the silicon nanowires in this work are calculated from SEM images and listed in Table 1. The σ L value of Sn is 0.6 [12], which is more than the σ L values of Bi, Sb and Pb, but less than those of Ag, Au, and Al [12] and [28]. The liquid/solid interface tension of the grown SiNWs is calculated from Eq.…”

Section: Results and Discussion Morphologymentioning

confidence: 99%

Controlling the diameter of silicon nanowires grown using a tin catalyst

Al-Taay

Mahdi

Parlevliet

et al. 2013

Materials Science in Semiconductor Processing

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Silicon nanowires were grown on ITO-coated glass substrates via a pulsed plasma enhanced chemical vapor deposition method, using tin as a catalyst. The thin films of catalyst, with different thicknesses in the range 10-100 nm, were deposited on the substrates by a thermal evaporation method. The effect of the thickness of the thin film catalyst on the morphology of the silicon nanowires was investigated.The scanning/transmission electron microscopy images showed that the wire diameter increased as the thickness of the thin film catalyst increased. The nanowires grown using a thin film thickness of 10 nm were inhomogeneous in diameter, whereas the other thicknesses led to an increase in the homogeneity of the diameters of the nanowires. The dominant wire diameter of the grown silicon nanowires ranged from 70 to 80 nm with 10 nm catalyst thin film thickness, and increased to a range of 190-200 nm with 100 nm catalyst thin film thickness.

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Surface tension of binary and ternary aluminium alloys of the systems Al-Si-Mg and Al-Zn-Mg

Cited by 62 publications

References 12 publications

Kinetics of coalescence in liquid aluminium foams

Kinetics of coalescence in liquid aluminium foams

Analysis of liquid metal foams through X-ray radioscopy and microgravity experiments

Controlling the diameter of silicon nanowires grown using a tin catalyst

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