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Journal of Dental Research, Vol 62, 1229-1235, Copyright © 1983 by International & American Associations for Dental Research Online Journals
ARTICLES |
J. R. Mackert Jr, R. D. Ringle and C. W. Fairhurst
The mechanism of formation of nodular material on the surface of a Pd-Ag-based alloy for porcelain during pre-porcelainization heat treatment was investigated using scanning electron microscopy, x-ray diffraction, quantitative metallography, and Auger electron spectroscopy. The nodules were found to form by a Nabarro-Herring creep mechanism driven by the internal oxidation of tin and indium. Implications of this process with regard to porcelain bonding and discoloration are discussed.
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