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Phenomenology of Noncrystalline Microphase Separation in Glass
Author(s) -
OHLBERG S. M.,
HAMMEL J. J.,
GOLOB H. R.
Publication year - 1965
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.1151-2916.1965.tb14707.x
Subject(s) - nucleation , materials science , electron micrographs , silicate glass , chemical engineering , glass transition , crystallography , chemical physics , thermodynamics , electron microscope , composite material , polymer , chemistry , optics , engineering , physics
Time‐temperature characteristics were established for the formation of a silica‐rich glassy microphase in a silicate glass. Plots of temperature versus nucleation time produced curves similar to those determined by Hillig for a glass‐crystal transformation. These experiments showed that a nucleation step was required for the formation of this glassy microphase. Electron micrographs indicated that the microphase growth was diffusion‐controlled. The results led to the conclusion that the multiphase structure which was developed in this glass corresponded to a liquid‐liquid separation.