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Subliquidus Immiscibility in Binary Alkali Borates
Author(s) -
SHAW R. R.,
UHLMANN D. R.
Publication year - 1968
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.1151-2916.1968.tb11897.x
Subject(s) - alkali metal , rubidium , boron , caesium , materials science , phase (matter) , microstructure , transmission electron microscopy , lithium (medication) , phase diagram , mineralogy , potassium , analytical chemistry (journal) , inorganic chemistry , chemistry , metallurgy , nanotechnology , organic chemistry , medicine , endocrinology
The phase boundaries of subliquidus immiscibility in the lithium, sodium, potassium, rubidium, and cesium borate systems were determined. Two‐phase structures were developed in thermal gradients and examined by direct‐transmission electron microscopy. No opalescence was observed. Microstructures were of the order of a few hundred angstroms. The extent of immiscibility in each system was determined by the approximate intersection of the immiscible phase boundary with the glass transition region.