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Growth and thermal ...
Growth and thermal stability of TiN/ZrAlN: Effect of internal interfaces
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- Yalamanchili, Phani Kumar (author)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska fakulteten
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- Wang, Fei (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten,University of Saarland, Germany
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- Aboulfadl, Hisham (author)
- University of Saarland, Germany
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- Barrirero, Jenifer (author)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska fakulteten,University of Saarland, Germany
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- Rogström, Lina (author)
- Linköpings universitet,Nanostrukturerade material,Tekniska fakulteten
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- Jimenez-Pique, Emilio (author)
- University of Politecn Cataluna, Spain; CRnE UPC, Spain
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- Muecklich, Frank (author)
- University of Saarland, Germany
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- Tasnadi, Ferenc (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten
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- Odén, Magnus (author)
- Linköpings universitet,Nanostrukturerade material,Tekniska fakulteten
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- Ghafoor, Naureen (author)
- Linköpings universitet,Nanostrukturerade material,Tekniska fakulteten
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(creator_code:org_t)
- Pergamon Press, 2016
- 2016
- English.
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In: Acta Materialia. - : Pergamon Press. - 1359-6454 .- 1873-2453. ; 121, s. 396-406
- Related links:
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https://upcommons.up...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Wear resistant hard films comprised of cubic transition metal nitride (c-TMN) and metastable c-AlN with coherent interfaces have a confined operating envelope governed by the limited thermal stability of metastable phases. However, equilibrium phases (c-TMN and wurtzite(w)-AlN) forming semicoherent interfaces during film growth offer higher thermal stability. We demonstrate this concept for a model multilayer system with TiN and ZrAlN layers where the latter is a nanocomposite of ZrN- and AlN-rich domains. The interfaces between the domains are tuned by changing the AlN crystal structure by varying the multilayer architecture and growth temperature. The interface energy minimization at higher growth temperature leads to formation of semicoherent interfaces between w-AlN and c-TMN during growth of 15 nm thin layers. Ab initio calculations predict higher thermodynamic stability of semicoherent interfaces between c-TMN and w-AlN than isostructural coherent interfaces between c-TMN and c-AlN. The combination of a stable interface structure and confinement of w-AlN to nm-sized domains by its low solubility in c-TMN in a multilayer, results in films with a stable hardness of 34 GPa even after annealing at 1150 degrees C. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Thermal stability
- TM-Al-N multilayer films
- Nanostructured materials
- Interface energy
- Three-dimensional atom probe (3DAP)
- Transmission electron microscopy
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Yalamanchili, Ph ...
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Wang, Fei
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Aboulfadl, Hisha ...
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Barrirero, Jenif ...
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Rogström, Lina
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Jimenez-Pique, E ...
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show more...
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Muecklich, Frank
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Tasnadi, Ferenc
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Odén, Magnus
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Ghafoor, Naureen
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Acta Materialia
- By the university
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Linköping University