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College of Engineering(공과대학)Dept. of Materials Science and Engineering(신소재공학과)MS-Journal Papers(저널논문)

Thermal dissolution mechanisms of AlN/CrN hard coating superlattices studied by atom probe tomography and transmission electron microscopy

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dc.contributor.authorTytko, Dariusko
dc.contributor.authorChoi, Pyuck-Pako
dc.contributor.authorRaabe, Dierkko
dc.date.accessioned2016-05-16T02:38:00Z-
dc.date.available2016-05-16T02:38:00Z-
dc.date.created2016-02-05-
dc.date.created2016-02-05-
dc.date.created2016-02-05-
dc.date.issued2015-02-
dc.identifier.citationACTA MATERIALIA, v.85, pp.32 - 41-
dc.identifier.issn1359-6454-
dc.identifier.urihttp://hdl.handle.net/10203/207318-
dc.description.abstractAlN/CrN superlattices with a B1 cubic crystal structure and a bilayer period of 4 nm were deposited by reactive radiofrequency magnetron sputtering. The coatings were investigated with respect to their thermal stability and changes in microstructure and chemical composition at 900 degrees C. The AlN layers show high chemical stability but undergo dissolution by pinching off at grain boundaries. A transformation from cubic to hexagonal AlN with subsequent coarsening at grain boundary triple junctions is observed. In contrast to AlN, the CrN layers show poor chemical stability and their compositions are shifted towards Cr2N upon annealing in a protective argon atmosphere due to nitrogen loss. However, even after establishing Cr2N stoichiometry the crystal structure of the layers remains cubic. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.titleThermal dissolution mechanisms of AlN/CrN hard coating superlattices studied by atom probe tomography and transmission electron microscopy-
dc.typeArticle-
dc.identifier.wosid000348956800004-
dc.identifier.scopusid2-s2.0-84916899400-
dc.type.rimsART-
dc.citation.volume85-
dc.citation.beginningpage32-
dc.citation.endingpage41-
dc.citation.publicationnameACTA MATERIALIA-
dc.identifier.doi10.1016/j.actamat.2014.11.004-
dc.contributor.localauthorChoi, Pyuck-Pa-
dc.contributor.nonIdAuthorTytko, Darius-
dc.contributor.nonIdAuthorRaabe, Dierk-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorAlN/CrN-
dc.subject.keywordAuthorHard coatings-
dc.subject.keywordAuthorThermal stability-
dc.subject.keywordAuthorLayer pinch-off-
dc.subject.keywordAuthorAtom probe tomography-
dc.subject.keywordPlusCRN/ALN MULTILAYER COATINGS-
dc.subject.keywordPlusTHIN-FILMS-
dc.subject.keywordPlusSPECIMEN PREPARATION-
dc.subject.keywordPlusHEAT-TREATMENT-
dc.subject.keywordPlusCUBIC ALN-
dc.subject.keywordPlusSTABILITY-
dc.subject.keywordPlusTRANSFORMATION-
dc.subject.keywordPlusOXIDATION-
dc.subject.keywordPlusSEGREGATION-
dc.subject.keywordPlusEVAPORATION-
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