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Calculated Phase Relations in the Al–Li–O System at 1000 K with Implications for Refractories and Metal–Matrix Composites
Author(s) -
Weirauch Douglas A.,
Graddy G. E.
Publication year - 1992
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.1151-2916.1992.tb04214.x
Subject(s) - isothermal process , alloy , materials science , compatibility (geochemistry) , oxide , partial pressure , composite material , metal , thermodynamics , phase (matter) , refractory metals , matrix (chemical analysis) , aluminium , refractory (planetary science) , oxygen , metallurgy , chemistry , physics , organic chemistry
An isothermal section of the Al–Li–O system has been constructed at 1000 K using available thermodynamic data. Oxide stability is shown as a function of alloy composition and oxygen partial pressure p O2 ). Rigorous experimental verification of the calculated phase relations is precluded by the extremely low values of p O2 ) at equilibrium. The validity of the computed phase relations is considered from the results of laboratory studies of refractory compatibility and observations of interfacial phases in aluminum alloy matrix composites.