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X-Ray Diffraction Investigation of the Sn-Hg Phase in Dental Amalgam*

Published online by Cambridge University Press:  06 March 2019

Carl W. Fairhurst  and
Gunnar Ryge
Carl W. Fairhurst
Affiliation:
Marquette University School of Dentistry Milwaukee, Wisconsin
Gunnar Ryge
Affiliation:
Marquette University School of Dentistry Milwaukee, Wisconsin
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Abstract

Dental amalgam has been used as a filling material in dentistry for over 100 years. The reactants, Ag3Sn alloy and mercury, form silver-mercury and tin-mercury products. Previous X-ray diffraction studies have resulted in some disagreement concerning unit-cell structure and parameters of the products. In this study, X-ray diffraction measurements were carried out on tin-mercury mixtures, tin-mercury alloys, dental amalgam, and single crystals of tin and mercury. The diffraction data for the tin-mercury alloys were programed for an IBM 650 computer utilizing Cohen's least-squares method. The tin-mercury product was found to be a solid solution possessing hexagonal-symmetry elements. The parameters ranged from: c0 = 2.995 A to 2.984 A, co/ao = 0.931.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 5: Tenth Annual Conference on Applications of X-ray Analysis, August 7-9, 1961 , 1961 , pp. 64 - 70
Copyright
Copyright © International Centre for Diffraction Data 1961

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Footnotes

*

This investigation was supported in part by Research Grant D-1057 from the National Institute of Dental Research, U.S. Public Health Service.

References

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