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High-temperature Behavior of a Pd-Ag Alloy for Porcelain

Dental Materials Division, Department of Restorative Dentistry, School of Dentistry, Medical College of Georgia, Augusta, Georgia 30912

R.D. Ringle

Dental Materials Division, Department of Restorative Dentistry, School of Dentistry, Medical College of Georgia, Augusta, Georgia 30912

C.W. Fairhurst

Dental Materials Division, Department of Restorative Dentistry, School of Dentistry, Medical College of Georgia, Augusta, Georgia 30912

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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Journal of Dental Research, Vol. 62, No. 12, 1229-1235 (1983)
DOI: 10.1177/00220345830620121201


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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Mackert, J.R. Articles by Fairhurst, C.W. Search for Related Content PubMed PubMed Citation Articles by Mackert, J.R., Jr Articles by Fairhurst, C.W. Pubmed/NCBI databases Compound via MeSH Substance via MeSH Hazardous Substances DB PALLADIUM Social Bookmarking                         What's this?