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Preparation and Phase Transformations of Dicalcium Silicate‐Alkali Fluoride Complexes
Author(s) -
BALMER M. K.,
SILVERMAN S. M.
Publication year - 1971
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.1151-2916.1971.tb12227.x
Subject(s) - alkali metal , silicate , potassium , phase (matter) , inorganic chemistry , lithium (medication) , fluoride , chemistry , mineralogy , sodium , materials science , organic chemistry , medicine , endocrinology
Complexes of dicalcium silicate and lithium, sodium, and potassium fluorides were prepared by solid‐state reactions. X‐ray diffraction powder pattern data are presented for the complexes. Phase transformations were found below 1000°C for the Li and K complexes, but not for the Na complex. The inversion point for the Li complex is between 915° and 920°C and that for the K complex is between 805° and 810°C. Between 940° and 950°C the Li complex fuses to a colorless glass‐like melt which on cooling shows evidence of partial conversion to γ‐2CaO·SiO 2 .