Journal of Dental Research, Vol 56, 36-39, Copyright © 1977 by International & American Associations for Dental Research Online Journals
Creep and phase transformation in dental amalgam
S. Espevik
Creep measurements were performed on different types of amalgams as a
function of heat treatment after specimen preparation before testing. The
types of amalgams included lathecut, spherical, nonpreamalgamated amalgams,
and an amalgam containing Ag-Cu particles. Heat treatment significantly
reduced the creep of all alloy types studied. Creep reduction was
associated with the phase and transformation gamma1 leads to beta1 (Ag-Hg),
which was detected by metallographic and microprobe analysis.