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Relationship between creep, γ 2 , and marginal fracture of dental amalgams
Author(s) -
SARKAR N. K.,
EYER C. S.,
NORLING B. K.
Publication year - 1983
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1983.tb01472.x
Subject(s) - creep , materials science , amalgam (chemistry) , grain boundary , fracture (geology) , grain boundary sliding , composite material , deformation (meteorology) , volume fraction , metallurgy , microstructure , chemistry , electrode
Summary The effect of γ 1 and γ 2 on the creep deformation of dental amalgams has been investigated. It has been shown that the creep of a conventional amalgam is not dependent on γ 1 as was previously reported. Rather it is strongly influenced by γ 2 and its volume fraction. It has been speculated that Sn‐rich grain boundaries also enhance creep by facilitating grain boundary sliding. The reported correlation between creep and marginal fracture has been explained in terms of this dependence of creep on corrosionprone Sn‐rich microstructural constituents of amalgams.