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Slag corrosion of gamma aluminium oxynitride
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0002-3548-8638
KTH, Superseded Departments, Materials Science and Engineering.
2002 (English)In: Steel research, ISSN 0177-4832, Vol. 73, no 3, 91-96 p.Article in journal (Refereed) Published
Abstract [en]

Corrosion of gamma-aluminlum oxynitride (AlON) by CaO-MgO-FeO-Al2O3-SiO2 melts corresponding to blast furnace slag was examined from 1693 to 1753 K under static and forced convection conditions. An intermediate layer was observed between the unreacted oxynitride and slag. After a certain time interval, the rate of the growth of this layer was found to be equal to the rate of the dissolution of the layer. Slag corrosion of NON is a strongly thermally activated process, the overall activation energy being 1002 kJ/mol. The rate of corrosion was found to be significantly enhanced by the addition of,,FeO.

Place, publisher, year, edition, pages
2002. Vol. 73, no 3, 91-96 p.
Keyword [en]
phase-relations, spinel, alon
URN: urn:nbn:se:kth:diva-21452ISI: 000174879600005OAI: diva2:340150
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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