THE INTERMEDIATE AND HIGH-TEMPERATURE OXIDATION BEHAVIOR OF MO(SI1-XALX)(2) INTERMETALLIC ALLOYS

Authors
STERGIOU A TSAKIROPOULOS P BROWN A
Citation
A. Stergiou et al., THE INTERMEDIATE AND HIGH-TEMPERATURE OXIDATION BEHAVIOR OF MO(SI1-XALX)(2) INTERMETALLIC ALLOYS, Intermetallics, 5(1), 1997, pp. 69-81
Citations number
26
Categorie Soggetti
Metallurgy & Metallurigical Engineering","Chemistry Physical","Material Science
Journal title
Intermetallics → ACNP
ISSN journal
09669795
Volume
5
Issue
1
Year of publication
1997
Pages
69 - 81
Database
ISI
SICI code
0966-9795(1997)5:1<69:TIAHOB>2.0.ZU;2-A
Abstract
The oxidation behaviour of are-melted Mo(Si1-xAlx)(2) ingots al low an d high temperatures was studied. At temperatures around 773 K, suppres sion of the pest phenomenon was observed and a scale consisting of mix ed Al/Si oxide was formed with traces of Al/Mo oxide. At 1623 K alpha- Al2O3 layer was formed. At 1873 K the scale was made up of two oxide l ayers, the outer consisting of mullite and SiO2 with dissolved Al2O3 a nd the inner consisting of Al2O3. Formation of Mo5Si3 beneath the scal e depended on the Al content of the alloys. (C) 1996 Elsevier Science Limited.