Please use this identifier to cite or link to this item:
http://hdl.handle.net/11375/17180
Title: | Impurities and the Evaporation Morphology of Zinc Single Crystals |
Authors: | Carson, William Alfred John |
Advisor: | Ives, M.B. |
Department: | Physics |
Keywords: | optical and scanning electron microscope;evaporation morphology;zinc single crystals;bulk impurities;gaseous |
Publication Date: | 1970 |
Abstract: | <p> In this thesis the results of optical and scanning electron microscopic investigations of the evaporation morphology of zinc single crystals are presented. Dislocation etch pits developed on (0001) zinc cleavage surfaces. A mechanism is proposed to account for enhanced evaporation at decorated dislocations. The observation of macroledges on pit faces is reported and attributed to impurity-induced bunching of monatomic ledges, the impurities having out-diffused from the bulk. A proposed model for evaporation of faceted surfaces is used to interpret the ledge morphology which developed when samples were evaporated in an oxygen environment. Finally, a correlation between the effects of bulk impurities and gaseous impurities on ledge morphology is demonstrated.</p> |
URI: | http://hdl.handle.net/11375/17180 |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Carson William .pdf | Main Thesis | 17.58 MB | Adobe PDF | View/Open |
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