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The effect of matrix phase morphology on the structure of Ag–Cu–Pd dispersed phase dental amalgam
Author(s) -
MANTE F.,
GREENER E.H.,
GILBERT J.,
LIN J.H. CHERN
Publication year - 1995
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.1365-2842.1995.tb01071.x
Subject(s) - amalgam (chemistry) , alloy , dispersant , materials science , copper , matrix (chemical analysis) , phase (matter) , metallurgy , particle (ecology) , particle size , composite material , dispersion (optics) , chemistry , organic chemistry , optics , physics , oceanography , electrode , geology
summary The effect of an Ag–Cu–Pd dispersant alloy on the structure of amalgams fabricated with two different particle types of low‐copper amalgam matrices was investigated. In amalgams L and L (0), a low‐copper lathe‐cut amalgam Aristalloy® was used as the matrix. In amalgams S and S(0), the matrix used was Spheralloy®, a low‐copper spherical amalgam. X‐ray diffraction was used to analyse the relative content of the phases in the amalgams. The presence of Pd in the dispersant of amalgams L and S resulted in a decrease in the amount of η′(Cu 6 Sn 5 ) and an increase in the amount of unreacted particles when compared to the controls L(0) and S(0). Amalgams fabricated with a spherical alloy matrix (S and S(0)) showed a greater effect than amalgams fabricated with a lathe‐cut matrix alloy (L and L(0)).