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Microstructures of Duplex (β + ) Silver-Tin Alloys

now Faculty of Dentistry, The University of Adelaide, Adelaide, S.A. 5000, Australia

D.R. Miller

Department of Chemical Engineering, The University of Adelaide, Adelaide, S.A. 5000, Australia

D.J. Netherway

now Defence Research Centre, Salisbury, S.A. 5108, Australia

The microstructures of (β + ) silver-tin alloys are especially influenced by both homogenization temperature and subsequent heat treatment. When the alloy is cooled from homogenization temperatures above approximately 200°C, lenticular regions of the ordered orthorhombic phase precipitate from within the disordered h.c.p. β_phase on three structurally equivalent planes, (1210), (1120), and (2110), to form a Widmanstatten structure. When the duplex alloys were homogenized at temperatures below approximately 200°C, where the β/(β + ) phase boundary is vertical, these structures were not observed.

REFERENCES

• Abbott, J.R.; Miller, D.R.; and Netherway, D.J. (1984): Plastic Deformation of β and Phase Silver-Tin Alloys, J Mater Sci 19:3255-3265.[CrossRef]
• De Freitas, J.F. (1979): A Survey of the Elemental Composition of Alloy for Dental Amalgam, Aust Dent J 24:17-25.[Medline] [Order article via Infotrieve]
• Edington, J.W. (1975): Interpretation of Transmission Electron Micrographs, Monograph 3, Practical Electron Microscopy in Materials Science, Philips Technical Library: MacMillan, p. 45.
• Hansen, M. (1958): Constitution of Binary Alloys, 2nd ed., New York, NY: McGraw-Hill, p. 52.
• Murphy, A.J. (1926): The Constitution of the Alloys of Silver and Tin, J Inst Metals 35:107-124.
• Phillips, R.W. (1973): Skinner's Science of Dental Materials, 7th ed., Philadelphia: W.B. Saunders Company, p. 305.

Journal of Dental Research, Vol. 64, No. 5, 860-864 (1985)
DOI: 10.1177/00220345850640051501


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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 Abbott, J.R. Articles by Netherway, D.J. Search for Related Content PubMed PubMed Citation Articles by Abbott, J.R. Articles by Netherway, D.J. Pubmed/NCBI databases Compound via MeSH Substance via MeSH Hazardous Substances DB SILVER COMPOUNDS SILVER, ELEMENTAL TIN TIN COMPOUNDS Social Bookmarking                         What's this?