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Formation of Convoluted Silica Precipitates during Amorphous Phase Separation in the Ca 3 (PO 4 ) 2 –SiO 2 –MgO System
Author(s) -
Oliveira José M.,
Correia Rui N.,
Fernandes Maria H. V.
Publication year - 2000
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2000.tb01374.x
Subject(s) - coalescence (physics) , amorphous solid , phase (matter) , materials science , amorphous silica , mineralogy , silica glass , chemical engineering , morphology (biology) , crystallography , chemistry , geology , composite material , organic chemistry , physics , astrobiology , engineering , paleontology
Dispersed aggregates of peculiar morphology have been obtained in phase‐separated glasses of the system Ca 3 (PO 4 ) 2 –SiO 2 –MgO, where the separated phase is amorphous silica. The formation of such convoluted aggregates is tentatively explained in terms of a fast coalescence process of initial isolated quasi‐spherical droplets which behave as a dispersed phase in an emulsion‐like system.