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Subsolidus Phase Relationships in the System Fe 2 O 3 –Al 2 O 3 –TiO 2 between 1000° and 1300°C
Author(s) -
Pownceby Mark I.,
ConstantiCarey Keri K.,
FisherWhite Michael J.
Publication year - 2003
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.1151-2916.2003.tb03405.x
Subject(s) - phase (matter) , solid solution , ternary operation , spinodal decomposition , solubility , materials science , ternary compound , crystallography , analytical chemistry (journal) , x ray crystallography , ternary numeral system , phase diagram , diffraction , chemistry , mineralogy , inorganic chemistry , physics , metallurgy , organic chemistry , chromatography , computer science , optics , programming language
Subsolidus phase equilibria in the system Fe 2 O 3 –Al 2 O 3 –TiO 2 were investigated between 1000° and 1300°C. Quenched samples were examined using powder X‐ray diffraction and electron probe microanalytical methods. The main features of the phase relations were: (a) the presence of an M 3 O 5 solid solution series between end members Fe 2 TiO 5 and Al 2 TiO 5 , (b) a miscibility gap along the Fe 2 O 3 –Al 2 O 3 binary, (c) an α‐M 2 O 3 ( ss ) ternary solid‐solution region based on mutual solubility between Fe 2 O 3 , Al 2 O 3 , and TiO 2 , and (d) an extensive three‐phase region characterized by the assemblage M 3 O 5 +α‐M 2 O 3 ( ss ) + Cor( ss ). A comparison of results with previously established phase relations for the Fe 2 O 3 –Al 2 O 3 –TiO 2 system shows considerable discrepancy.