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Liquid Immiscibility in the Systems Na 2 O ‐ Yb 2 O 3‐ B 2 O 3‐ SiO 2 and K 2 O ‐ Yb 2 O 3‐ B 2 O 3‐ SiO 2
Author(s) -
TAYLOR PETER,
ASHMORE SHEILA D.,
CAMPBELL ALLAN B.
Publication year - 1984
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.1151-2916.1984.tb19616.x
Subject(s) - borosilicate glass , alkali metal , phase diagram , analytical chemistry (journal) , spinodal decomposition , miscibility , materials science , crystallography , crystallization , x ray crystallography , mineralogy , phase (matter) , chemistry , physics , diffraction , polymer , optics , organic chemistry , composite material , chromatography
Limits of miscibility were determined for portions of the systems Na 2 O ‐ Yb 2 O 3‐ B 2 O 3‐ SiO 2 and K 2 O ‐ Yb 2 O 3‐ B 2 O 3‐ SiO 2 in the range 650° to 800°C, at Yb 2 O 3 concentrations up to 5 mol%, and at a fixed SiO 2 /B 2 O 3 mole ratio of 2.0. Regions of the phase diagrams at higher Yb 2 O 3 concentrations were not accessible because of interference from crystallization. The miscibility gaps have topographies similar to those found in the alkali‐metallalkaline‐earth borosilicate systems, X 2 O ‐ MO ‐ B 2 O 3‐ SiO 2 .