Premium
Microstructure of Chromite‐Periclase at 1650° to 2310°C
Author(s) -
SCHEERER P. E.,
MIKAMI H. M.,
TAUBER J. A.
Publication year - 1964
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.1151-2916.1964.tb14419.x
Subject(s) - periclase , chromite , spinel , solid solution , materials science , microstructure , silicate , phase (matter) , mineralogy , solid state , metallurgy , chemical engineering , chemistry , organic chemistry , engineering
Progressive solid solution of chromite in periclase occurs with increasing temperature. Solid solution is virtually complete except for a few coarse remnants at 1980° C and these are gone at 2090° C. Specimens cooled slowly exhibit exsolution structures, whereas specimens quenched from the higher temperatures consist essentially of a single solid‐solution phase. Two periclase structure phases are indicated by X‐ray patterns in some quenched specimens. Silicate alters the relations between chromite and periclase in specimens cooled slowly and facilitates segregation of spinel from the solid solution in quenched specimens. Textural features observed in electrically fused specimens are similar to those resulting from predominantly solid‐state reactions in specimens fired to 2200°C.