X-Ray Diffraction Investigation of the Sn-Hg Phase in Dental Amalgam*
- 1 January 1961
- journal article
- Published by Cambridge University Press (CUP) in Advances in X-ray Analysis
- Vol. 5, 64-70
- https://doi.org/10.1154/s0376030800001427
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.Keywords
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