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The System Bi 2 O 3 ‐SiO 2
Author(s) -
Takamori Takeshi
Publication year - 1990
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.1151-2916.1990.tb05112.x
Subject(s) - metastability , phase diagram , differential thermal analysis , phase (matter) , materials science , diffraction , powder diffraction , range (aeronautics) , atmospheric temperature range , crystallography , thermal , analytical chemistry (journal) , mineralogy , thermodynamics , chemistry , physics , optics , composite material , organic chemistry
The Bi 2 O 3 ‐rich side of the system Bi 2 O 3 ‐SiO 2 was studied with powder X‐ray diffraction and differential thermal analysis. In the composition 6Bi 2 O 3 . x SiO 2 , the metastable γ phase (bcc) was observed to exist over the range of 0 < x ≤ 1. In most of the compositions studied, metastable phases of water‐quenched melts transformed into another metastable phase before reaching stable phases. A modification of the phase diagram is proposed.