Surface tension of liquid Cu–Ti binary alloys measured by electromagnetic levitation and thermodynamic modelling

Amore, S.; Brillo, Jürgen; Egry, Iván; Novaković, R.

doi:10.1016/j.apsusc.2011.04.019

Cited by 43 publications

(32 citation statements)

References 31 publications

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“…From the linear fit of the experimentally determined surface tension values as a function of temperature the temperature coefficient of copper surface tension ds =dT ¼ À4:4EÀ05 N m À1 K À1 is slight negative. Compared to Brillo and Egry [25] where ds =dT ¼ À2:3EÀ04 N m À1 K À1 and Amore et al [26] where ds =dT ¼ À2:3EÀ04 N m À1 K À1 , both literature values obtained via the EML method, ds =dT from the present investigation is one order of magnitude lower. It is stated from the experimental results that at elevated temperatures oxygen is further reduced by the ambient atmosphere and by this the copper surface tension is affected which changes the temperature coefficient of surface tension.…”

Section: Surface Tensionmentioning

confidence: 45%

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The Thermophysical Properties of Liquid TRIP/TWIP‐Steel Alloys Using the Maximum Bubble Pressure Method

Dubberstein

Heller

2013

Adv Eng Mater

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The thermophysical properties of liquid Cr‐Mn‐Ni steel alloys (16 wt% Cr, 7 wt% Mn, and 3–9 wt% Ni) are investigated using the maximum bubble pressure method in which the manganese evaporation and change in chemical composition is very low after experimental trial. The surface tension of copper was measured as reference and experimental σ is in the range of literature values. It is shown that for AISI 304 austenitic steel the surface tension decreased by an increase of oxygen concentration in steel composition. For Cr‐Ni and Cr‐Mn‐Ni steels, the temperature coefficient dσtrue/dT is positive which is explained by sulfur steel concentrations larger 50 mass ppm. A slight influence of nickel to the surface tension of Cr‐Mn‐Ni steels was experimentally observed where σ was lowered by rising weight percentage of nickel.

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Section: Surface Tensionmentioning

confidence: 45%

“…3. Surface tension of copper compared to Amore et al [26] Novakovic et al [38] Matsumoto et al [39] and Brillo et al [25] a Values for experimental trial with oxygen adsorption into the metal bath. Fig.…”

Section: Surface Tensionmentioning

confidence: 99%

The Thermophysical Properties of Liquid TRIP/TWIP‐Steel Alloys Using the Maximum Bubble Pressure Method

Dubberstein

Heller

2013

Adv Eng Mater

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“…The measured values of γ L and γ T for the pure elements Ag and Cu, respectively together with corresponding results from various literature sources 15,17,[35][36][37][38][39][40][41][42][43][44][45] are listed in Tables Table 4.…”

Section: Discussionmentioning

confidence: 99%

Surface Tension of Liquid Ag–Cu Binary Alloys

et al. 2014

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Surface tension of liquid Ag-Cu binary alloys has been measured contactlessly using the technique of electromagnetic levitation in combination with the oscillating drop technique. The measurements were performed at temperatures above the melting point of alloys. The surface tension values were obtained from an analysis of the frequency spectra of droplet oscillations recorded with a CMOS-camera at 400 fps.The alloy samples covered the entire composition range. The surface tension data can be described by linear functions of temperature with negative slopes. The new experimental data were compared to the corresponding theoretical values calculated combining the Butler equation with the ideal and subregular solution models, respectively. The agreement with the experimentally obtained data is excellent for the isothermal surface tension and quite reasonable for their temperature coefficients.

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“…Density and surface tension measurements using levitation methods have been performed by us in the past on Al-based systems and systems containing Ti, such as Cu-Ti [26,27], Al-Ni [24,28,29], Al-Cu [30,31], Al-Cu-Ag [32,33], Al-Ag [32,33], Al-Fe [24,28,29], Al-Au [34,35], Al-Si [36,37] and Al-Cu-Si [38]. The formalisms used for the interpretation and discussion of the measured data are described in the following.…”

Section: Al-timentioning

confidence: 99%

Density, Molar Volume, and Surface Tension of Liquid Al-Ti

Wessing

Brillo

2016

Metall Mater Trans A

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Al-Ti based alloys are of enormous technical relevance due to their specific properties. For studies in atomic dynamics, surface physics and industrial processing the precise knowledge of the thermophysical properties of the liquid phase is crucial. In the present work, we systematically measure mass density, ρ [gcm-3 ], and the surface tension, γ [Nm-1 ], as functions of temperature, T, and compositions of binary Al-Ti melts. Electromagnetic levitation in combination with the optical dilatometry method is used for density measurements and the oscillating drop method for surface tension measurements. It is found that, for all compositions, density and surface tension increase linearly upon decreasing temperature in the liquid phase. Within the Al-Ti system we find the largest values for pure titanium and the smallest for pure aluminum, which amount to ρ(L,Ti) = 4.12±0.04 gcm-3 and γ(L,Ti) = 1.56 ±0.02 Nm-1 and ρ(L,Al) = 2.09±0.01 gcm-3 and γ(L,Al) = 0.87 ±0.06 Nm-1 , respectively. The data are analyzed concerning the temperature coefficients, ρ T and γ T , excess molar volume, V E , excess surface tension, γ E , and surface segregation of the surface active component, Al. The results are compared with thermodynamic models. Generally, it is found that Al-Ti is a highly nonideal system.

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Surface tension of liquid Cu–Ti binary alloys measured by electromagnetic levitation and thermodynamic modelling

Cited by 43 publications

References 31 publications

The Thermophysical Properties of Liquid TRIP/TWIP‐Steel Alloys Using the Maximum Bubble Pressure Method

The Thermophysical Properties of Liquid TRIP/TWIP‐Steel Alloys Using the Maximum Bubble Pressure Method

Surface Tension of Liquid Ag–Cu Binary Alloys

Density, Molar Volume, and Surface Tension of Liquid Al-Ti

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