A study of grain-boundary grooving at the platinum/alumina interface
β Scribed by M. McLean; E. D. Hondros
- Publisher
- Springer
- Year
- 1971
- Tongue
- English
- Weight
- 754 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0022-2461
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π SIMILAR VOLUMES
When a solid-liquid interface is intersected by a grain boundary, a grain-boundary groove forms at the interface. Experiments have been carried out using camphene (a transparent analogue of a metal in terms of solidification behaviour) which show that, if the grain boundary is not perpendicular to t
In the case of Fe-Ni-Cr alloys (without precipitation), we propose an electrochemical method which allows us to obtain a reproducible selective corrosion of grain boundaries (H,SO,-2N 25'C in the transpassive domain) . We establish a model of dissolution to explain the morphology of etched grooves .
The nonlinear Mullins diffusion equation for the development of a surface groove by evaporation-condensation is reconsidered. Comparison theorems for differential equations are employed to obtain upper and lower bounds on the profile of the groove itself and on the growth rate of the groove at the g