Wetting kinetics and bonding of Al and Al alloys on α-SiC

Laurent, Véronique; Rado, C.; Eustathopoulos, N.

doi:10.1016/0921-5093(95)09896-8

Cited by 82 publications

(48 citation statements)

References 22 publications

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“…The degree by which a liquid wets a solid is an important technological parameter for processes such as joining [1][2][3][4][5][6], solidification [7][8][9], and composite processing [10][11][12][13][14]. While wetting is a measure of the ''energy'' of interfaces between bulk phases, and thus a parameter associated with equilibrium thermodynamics, the rate by which a liquid spreads in contact area with a solid is equally important for technological processes [15][16][17]. Fundamentally, wetting depends on the chemical content and atomistic structure of the bulk phases and the interface itself.…”

Section: Introductionmentioning

confidence: 99%

A review of wetting versus adsorption, complexions, and related phenomena: the rosetta stone of wetting

et al. 2013

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This paper reviews the fundamental concepts and the terminology of wetting. In particular, it focuses on high temperature wetting phenomena of primary interest to materials scientists. We have chosen to split this review into two sections: one related to macroscopic (continuum) definitions and the other to a microscopic (or atomistic) approach, where the role of chemistry and structure of interfaces and free surfaces on wetting phenomena are addressed. A great deal of attention has been placed on thermodynamics. This allows clarification of many important features, including the state of equilibrium between phases, the kinetics of equilibration, triple lines, hysteresis, adsorption (segregation) and the concept of complexions, intergranular films, prewetting, bulk phase transitions versus ''interface transitions'', liquid versus solid wetting, and wetting versus dewetting.

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Section: Introductionmentioning

confidence: 99%

A review of wetting versus adsorption, complexions, and related phenomena: the rosetta stone of wetting

et al. 2013

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“…Silicon carbide refractories are used in contact with metal alloys [1]. In the literature there are data about SiCwettability by pure liquid metals [2 -4] and some binary alloys [5], including that of Al -Si (19.5 at.% Si [7] and in full concentration range [8]) as well as Au -Si alloys [6]. In the Al-Si-SiC system the minimum on a contact angle isotherm has been observed at middle concentration [8].…”

Section: Introductionmentioning

confidence: 99%

The wettability of silicon carbide by Au–Si alloys

Naidich¹,

Журавлев²,

Krasovskaya³

1998

Materials Science and Engineering: A

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“…The wettability is thus highly time dependent because of the temperature dependence of the surface tension. Another important phenomenon to consider is the influence of the oxidation on surface tension values, which has already been studied by Laurent et al [15]. A large increase of the wetting angle with the oxidation rate was experimentally observed at a constant temperature.…”

Section: Physical Description Of the Reactive Wetting Phenomenonmentioning

confidence: 95%

Multiphysics Simulation and Experimental Investigation of Aluminum Wettability on a Titanium Substrate for Laser Welding-Brazing Process

Dal

Peyre

2017

Metals

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Abstract:The control of metal wettability is a key-factor in the field of brazing or welding-brazing. The present paper deals with the numerical simulation of the whole phenomena occurring during the assembly of dissimilar alloys. The study is realized in the frame of potential applications for the aircraft industry, considering the case of the welding-brazing of aluminum Al5754 and quasi-pure titanium Ti40. The assembly configuration, presented here, is a simplification of the real experiment. We have reduced the three-dimensional overlap configuration to a bi-dimensional case. In the present case, an aluminum cylinder is fused onto a titanium substrate. The main physical phenomena which are considered here are: the heat transfers, the fluid flows with free boundaries and the mass transfer in terms of chemical species diffusion. The numerical problem is implemented with the commercial software Comsol Multiphysics™, by coupling heat equation, Navier-Stokes and continuity equations and the free boundary motion. The latter is treated with the Arbitrary Lagrangian Eulerian method, with a particular focus on the contact angle implementation. The comparison between numerical and experimental results shows a very satisfactory agreement in terms of droplet shape, thermal field and intermetallic layer thickness. The model validates our numerical approach.

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Wetting kinetics and bonding of Al and Al alloys on α-SiC

Cited by 82 publications

References 22 publications

A review of wetting versus adsorption, complexions, and related phenomena: the rosetta stone of wetting

A review of wetting versus adsorption, complexions, and related phenomena: the rosetta stone of wetting

The wettability of silicon carbide by Au–Si alloys

Multiphysics Simulation and Experimental Investigation of Aluminum Wettability on a Titanium Substrate for Laser Welding-Brazing Process

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