Influence of different atmospheres on the thermal decomposition of Al-Cr-N coatings
2008 (English)In: Journal of Physics D: Applied Physics, ISSN 0022-3727, Vol. 41, no 15Article in journal (Refereed) Published
Metastable cubic (c) AlCrN coatings decompose during thermal annealing into their stable phases Cr and hexagonal (h) AlN under the release of N 2. We show that the onset temperature To and amount of N2 release depend on the ambient atmosphere. For c-Al 0.56Cr0.44N only a partial dissociation into h-AlN and h-Cr2N with To ∼ 1180°C occurs during annealing in N2 up to 1450°C. Experiments in synthetic air to 1450°C yield a complete oxidation to (Al0.56Cr0.44) 2O3. © 2008 IOP Publishing Ltd.
Place, publisher, year, edition, pages
2008. Vol. 41, no 15
National CategoryNatural Sciences
IdentifiersURN: urn:nbn:se:liu:diva-44672DOI: 10.1088/0022-3727/41/15/155316Local ID: 77265OAI: oai:DiVA.org:liu-44672DiVA: diva2:265534