MICROSTRUCTURAL CHANGES ON THE SURFACE OF DENTAL AMALGAM DURING AGING.

T. Okabe, R. J. Mitchell, M. B. Butts, J. L. Ferracane

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

The microstructural changes of dental amalgams during aging at room temperature have been examined using a scanning electron microscope equipped with an energy dispersive x-ray analyzer. Experiments were carried out using two different types of specimens: (1) amalgam/ epsilon Cu-Sn (Cu//3Sn) diffusion couple and (2) several amalgams with variations in copper content. Structural changes that occurred on the surface, as well as in the interior, were examined. The present study revealed that some intermetallic compounds in amalgams decompose, followed by a redistribution of atoms to form more stable compounds during aging. The rate of the redistribution depends upon the phases present in the amalgam and on the types of diffusion processes that may take place.

Original languageEnglish (US)
Title of host publicationMicrostructural Science
EditorsStuart A. Shiels, Chris Bagnall, Robert E. Witkowski, George F. Vander Voort
PublisherInt Metallographic Soc
Pages177-195
Number of pages19
ISBN (Print)0871702150
StatePublished - Jan 1 1986

Publication series

NameMicrostructural Science
Volume13
ISSN (Print)0361-1213

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Okabe, T., Mitchell, R. J., Butts, M. B., & Ferracane, J. L. (1986). MICROSTRUCTURAL CHANGES ON THE SURFACE OF DENTAL AMALGAM DURING AGING. In S. A. Shiels, C. Bagnall, R. E. Witkowski, & G. F. Vander Voort (Eds.), Microstructural Science (pp. 177-195). (Microstructural Science; Vol. 13). Int Metallographic Soc.