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Some Effects of Eutectic Liquid under Reducing Conditions in the Alumina–Tin Dioxide–Tin Composite System
Author(s) -
Morgan Peter E. D.,
Housley Robert M.
Publication year - 1995
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.1151-2916.1995.tb08400.x
Subject(s) - eutectic system , tin , tin dioxide , cassiterite , materials science , composite number , ceramic , ternary operation , eutectic bonding , chemical engineering , metallurgy , inorganic chemistry , composite material , microstructure , chemistry , computer science , engineering , programming language
Tin dioxide (SnO 2 , cassiterite) is one of the few simple oxides that do not react with alumina below a eutectic at 1620°C in air. Consequently it has been of interest for weak interfacial coatings on alumina for ceramic‐matrix composites (CMCs). However, at low oxygen potentials in the Al–Sn–O ternary system an oxidic eutectic liquid containing dissolved tin appears at 1045°C and readily attacks the alumina; this bears some resemblance to liquid phenomena encountered in the Ag‐HTSC (high‐temperature superconductor) systems.