Study of surface segregation and surface tension of SnGa solution using AES and sessile drop methods

Ashkotov, O.G.; Zdravomislov, M.V.

doi:10.1016/0039-6028(95)00547-1

Cited by 21 publications

(17 citation statements)

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“…1 and 3, a record high ST value of indium in the liquid state (700 mN/m) was obtained in Ashkhotov and other authors' works [54,71,92], which exceeds all generally accepted and rec ommended values by 140 mN/m. Note that the above stated very wide range of the ST of liquid indium, obtained for the last half century (Fig.…”

Section: Status Of Investigations Of the Temperature Dependence Of Thmentioning

confidence: 66%

“…Note that the above stated very wide range of the ST of liquid indium, obtained for the last half century (Fig. 1), without tak ing the data of works of one group of researchers into account [54,71,92], is at once threefold narrowed. In the authors' opinion, similar unusual results of works should be considered in more detail and critically ana lyzed, in particular, the used measurement procedures and conditions of σ(Т) for the purpose of their corre spondence, in the first place, to requirements of ther modynamic equilibrium and the surface manufactur ing and cleaning technology of the studied samples [93][94][95][96][97].…”

Section: Status Of Investigations Of the Temperature Dependence Of Thmentioning

confidence: 88%

“…In [54,71,92] the ST of liquid indium was deter mined in the ultrahigh dynamic vacuum conditions by the large drop method [42,98], and the authors simul taneously periodically inspected the indium surface with a ~10 19 at./m 2 sensitivity using the Auger elec tron spectrometer. The samples were made of indium of the In 000 brand, and the ST was measured with an error of 3%.…”

Section: Status Of Investigations Of the Temperature Dependence Of Thmentioning

confidence: 99%

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The surface tension of indium: Methods and results of investigations

et al. 2014

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The primary results of investigations of the surface tension (ST) of indium for the last six decades are considered in this review, and original data on the temperature dependence of the ST of indium obtained by authors using the sessile large drop and maximal drop pressure methods are given. Primary attention is paid to analyzing the possible methodological drawbacks of experimental studies, in which surface tension values of pure indium and some other metals, significantly exceeding the ST data, determined by traditional classic meth ods, are obtained. In the authors' opinion, the cleaning of the studied metal surfaces by heavy ion bombard ments of inert gases, which is used in similar works, cannot guarantee obtaining true surface tension values.

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Section: Status Of Investigations Of the Temperature Dependence Of Thmentioning

confidence: 66%

Section: Status Of Investigations Of the Temperature Dependence Of Thmentioning

confidence: 88%

Section: Status Of Investigations Of the Temperature Dependence Of Thmentioning

confidence: 99%

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The surface tension of indium: Methods and results of investigations

et al. 2014

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“…The value of the kinetic coefficient μ As depends on the surface tension at the interface solid-liquid phase σ sl − in our case it is the interface between the GaAs solid phase and the liquid phase of Ga-As with composition, corresponding to liquidus line. Many investigations are dedicated to the surface tension in the systems Ga-Sn [30,31], Ga-In [31], Ga-Tl [32], Ga-GaAs [33]. In the reference [34] the surface tensions at the interfaces solid-liquid phase, solid-vapor phase and liquid-vapor phase have been determined for GaAs LPE growth.…”

Section: Resultsmentioning

confidence: 99%

Processes in phase boundary region during liquid phase growth

Peev

2013

Cryst. Res. Technol.

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Key words liquid phase growth, phase boundary region.The behavior of components within the phase boundary region during liquid phase growth is the subject of the present article. Based on the supposition that the phase boundary is a structured region, repeating the periodicity of the substrate, the distribution of different components within the phase boundary is considered. Assuming that the value of the supersaturation at the upper end of the phase boundary defines the growth rate of the compound, a relation has been derived, concerning the extension of the phase boundary. The case of liquid phase epitaxial growth of GaAs is considered and an effort for evaluation of the phase boundary extension is undertaken. The linear dependence of the stationary growth rate on the cooling rate, predicted previously, is proved experimentally.

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“…Furthermore, the surface tension gradient can lead to marangoni convection, which has a significant effect on rapid solidification. So far, several experimental methods, such as maximum bubble pressure method [10] , sessile drop method [11] , pendent drop www.scichina.com www.springerlink.com method [12] and levitated oscillating drop method [1][2][3][4] , have been developed to measure the surface tension of liquid metals. The levitated oscillating drop method presents more availability in measuring the surface tension of a metastable liquid metal or alloy.…”

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confidence: 99%

Thermophysical properties of Ni-5%Sn alloy melt

2006

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The surface tension and specific heat of Ni-5%Sn alloy melt were measured by the oscillating drop method and the drop calorimetric method using electromagnetic levitation, respectively. The temperature coefficient of surface tension is 6.43×10 -4 N·m −1 K −1 within the temperature regime of 1464-1931 K. The enthalpy change was measured in the temperature range from 1461 to 1986 K, and the average specific heat was obtained as 43.03 J·mol −1 K −1 . Some other thermophysical properties, such as viscosity, solute diffusion coefficient, density, thermal diffusivity and thermal conductivity of this alloy melt, were derived based on the experimentally measured surface tension and specific heat. Using these thermophysical parameters, the relation between solute trapping and undercooling in rapidly solidified α-Ni was calculated, and the theoretical prediction shows a good agreement with experimental data.

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Study of surface segregation and surface tension of SnGa solution using AES and sessile drop methods

Cited by 21 publications

References 1 publication

The surface tension of indium: Methods and results of investigations

The surface tension of indium: Methods and results of investigations

Processes in phase boundary region during liquid phase growth

Thermophysical properties of Ni-5%Sn alloy melt

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