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Phase identification in γ- and κ-alumina coatings by cathodoluminescence
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-9840-7364
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, The Institute of Technology.
Sandvik Toolin AB.
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2009 (English)In: Scripta Materialia, ISSN 1359-6462, Vol. 61, no 4, 379-382 p.Article in journal (Refereed) Published
Abstract [en]

Cathodoluminescence (CL) properties were studied for metastable γ- and κ-Al2O3 coatings for cutting tool inserts. The alumina films demonstrate a strong CL, with peak energies depending on the Al2O3 polymorphs. The phase transformation caused by heat treatment is shown to correlate with strong CL modification in the annealed coatings. Spatially resolved CL is found to be a powerful nondestructive technique for identification of different alumina phases on the microscopic level. The corresponding optical properties of γ- and κ-Al2O3 are discussed.

Place, publisher, year, edition, pages
2009. Vol. 61, no 4, 379-382 p.
Keyword [en]
Phase transformation, coatings, optical properties, oxides
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-19579DOI: 10.1016/j.scriptamat.2009.04.020OAI: oai:DiVA.org:liu-19579DiVA: diva2:225652
Available from: 2009-06-29 Created: 2009-06-29 Last updated: 2016-08-31Bibliographically approved

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Pozina, GaliaTrinh, David H.Högberg, HansHultman, Lars

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