Wettability predictions at the oxide ceramic/metal interfaces
- Colorado School of Mines, Golden, CO (United States)
The wettability of oxide ceramics are predicted using a model based on surface phase thermodynamics. Wetting occurs whenever the Gibbs free energy of wetting, {Delta}G{sub w} is negative. The model developed in this premise is illustrated using magnesium oxide ceramic as an example. The model predictions are verified both by using the wettability data available in the literature and by local experimentation. A wettability map delineating the wetting and non-wetting systems for magnesium oxide is drawn. The oxide wettability diagram, a plot of free energy versus temperature for both surface and bulk phases of technologically important oxide ceramics, is also constructed. This type of a wettability diagram can be advantageously used to evaluate the wettability of potential brazing alloys on oxide ceramics.
- OSTI ID:
- 443015
- Report Number(s):
- CONF-950682-; ISBN 0-87170-567-2; TRN: IM9712%%440
- Resource Relation:
- Conference: 4. international conference on trends in welding research, Gatlinburg, TN (United States), 5-9 Jun 1995; Other Information: PBD: 1996; Related Information: Is Part Of Trends in welding research: Proceedings of the 4. international conference; Smartt, H.B.; Johnson, J.A. [eds.] [Idaho National Engineering Lab., Idaho Falls, ID (United States)]; David, S.A. [ed.] [Oak Ridge National Lab., TN (United States)]; PB: 836 p.
- Country of Publication:
- United States
- Language:
- English
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