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Subsolidus Equilibria in the System MgO–GeO 2 –MgF 2
Author(s) -
McCORMICK GEORGE ROBERT
Publication year - 1966
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.1151-2916.1966.tb13180.x
Subject(s) - diffraction , solid state , silicon , germanium , compatibility (geochemistry) , materials science , mineralogy , petrography , x ray crystallography , crystallography , analytical chemistry (journal) , chemistry , optics , metallurgy , composite material , physics , organic chemistry
Four MgO‐GeO 2 ‐MgF 2 compounds, analogous to the humite minerals, were synthesized by solid state reaction by substituting germanium for silicon. The 43 selected compositions were sintered at 800° to 1200°C. Solid state compatibility relations were established from petrographic and X‐ray diffraction analyses. The optical properties and characteristic X‐ray diffraction data for the four MgO‐GeO 2 ‐MgF 2 compounds were determined, and 2MgO.GeO 2 MgF 2 , 4MgO.2GeO 2 MgF 2 , and 6MgO.3GeO 2 MgF 2 were indexed by Ito's method.