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Potentiostatic behaviour of dental amalgam alloys in salvia
Author(s) -
Abadir B. S.
Publication year - 1978
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19780290806
Subject(s) - amalgam (chemistry) , alloy , sodium , phosphate , saliva , intermetallic , ion , corrosion , chloride , materials science , chemistry , nuclear chemistry , hydrogen , inorganic chemistry , metallurgy , biochemistry , organic chemistry , electrode
The behaviour of Ag‐Sn alloy and Ag‐Sn‐Hg dental amalgam alloy has been studied under potentiostatic conditions in artificial saliva and in sodium chloride solutions containing 0.2% NaCl (alone or mixed with sodium hydrogen phosphate). It has been shown that Sn and Ag as well as the intermetallic compound reveal themselves through maxima in the E/I curves and through the total shift of these curves toward higher currents. The role of γ 2 ‐phase in enhancing corrosion and of hydrogen phosphate ions (and of other constituents of saliva) in counteracting the aggressiveness of Cl − ions have been demonstrated.
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