Fundamental issues of reactive wetting by liquid metals - Archive ouverte HAL
Communication Dans Un Congrès Année : 2009

Fundamental issues of reactive wetting by liquid metals

Résumé

Many pure metals and alloys do not wet covalent or ionocovalent ceramics and adhere weakly on them .This is the case for the low or moderate melting point metals Pb,Sn,In ,Ag,Au,Cu on the various forms of carbon(graphite ,diamond, vitreous carbon ..), on stable oxides (alumina, silica ,magnesia...) as well as on silicon and boron nitrides. A strong improvement in wetting can be obtained by certain alloying elements able to modify in situ the metal/ceramic interface by reaction with the ceramic .Reactivity is probably the major specific characteristic of wetting at high temperatures. The presentation will focus on the progress made during the last five years in the understanding of driving force and spreading kinetics of reactive wetting. A special attention will be paid to discuss the contribution on reactive wetting of the two following processes, adsorption at the initial metal/ceramic interface and formation of a 3D compound at the interface. The presentation will focus on the progress made during the last five years in the understanding of driving force and spreading kinetics of reactive wetting. A special attention will be paid to discuss the contribution of adsorption at the initial metal/ceramic interface and formation of a 3D interfacial compound.

Domaines

Matériaux

Dates et versions

hal-00515732 , version 1 (07-09-2010)

Identifiants

Citer

Olivier Dezellus, N. Eustathopoulos. Fundamental issues of reactive wetting by liquid metals. Euromat 2009, Sep 2009, Glasgow, United Kingdom. ⟨10.1007/s10853-009-4128-x⟩. ⟨hal-00515732⟩
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