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Electron microprobe analysis of the γ 2 phase in dental amalgam
Author(s) -
Bryant R. W.,
Wing G.
Publication year - 1984
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.1984.tb06046.x
Subject(s) - electron microprobe , phase (matter) , amalgam (chemistry) , materials science , microprobe , microstructure , matrix (chemical analysis) , analytical chemistry (journal) , metallurgy , composite material , mineralogy , chemistry , chromatography , organic chemistry , electrode
A bstract — The microstructure and composition of the γ 2 phase in four conventional lathe‐cut or spherical amalgams were investigated using an electron microprobe. In addition to its presence in the matrix, γ 2 phase was found, in lathe‐cut amalgams, in contact with ε (Cu 3 Sn) phase, separated from γ (Ag‐Sn) phase by a thin band of γ 1 phase and, rarely, in direct contact with γ phase, and, in spherical amalgams, within the relict of partly reacted spherical particles. Inclusions of γ, γ 1 and Cu‐Sn phase were occasionally identified within regions of γ 2 phase. The major element composition of the γ 2 phase was similar in all amalgams (83.0 to 83.2 per cent Sn, 17.0 to 16.8 per cent Hg).