Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Mechanical properties of VMoNO as a function of oxygen concentration: Toward development of hard and tough refractory oxynitrides
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering. Orebro Univ, Sweden.
Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics. Linköping University, Faculty of Science & Engineering. Ruhr Univ Bochum, Germany.ORCID iD: 0000-0002-1379-6656
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering. Sandvik Coromant AB, Sweden.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0003-1785-0864
Show others and affiliations
2019 (English)In: Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films, ISSN 0734-2101, E-ISSN 1520-8559, Vol. 37, no 6, article id 061508Article in journal (Refereed) Published
Abstract [en]

Improved toughness is a central goal in the development of wear-resistant refractory ceramic coatings. Extensive theoretical and experimental research has revealed that NaCl-structure VMoN alloys exhibit surprisingly high ductility combined with high hardness and toughness. However, during operation, protective coatings inevitably oxidize, a problem that may compromise material properties and performance. Here, the authors explore the role of oxidation in altering VMoN properties. Density functional theory and theoretical intrinsic hardness models are used to investigate the mechanical behavior of cubic V0.5Mo0.5N1-xOx solid solutions as a function of the oxygen concentration x. Elastic constant and intrinsic hardness calculations show that oxidation does not degrade the mechanical properties of V0.5Mo0.5N. Electronic structure analyses indicate that the presence of oxygen reduces the covalent bond character, which slightly lowers the alloy strength and intrinsic hardness. Nevertheless, the character of metallic d-d states, which are crucial for allowing plastic deformation and enhancing toughness, remains unaffected. Overall, the authors results suggest that VMoNO oxynitrides, with oxygen concentrations as high as 50%, possess high intrinsic hardness, while still being ductile. Published by the AVS.

Place, publisher, year, edition, pages
A V S AMER INST PHYSICS , 2019. Vol. 37, no 6, article id 061508
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-163046DOI: 10.1116/1.5125302ISI: 000504231200029OAI: oai:DiVA.org:liu-163046DiVA, id: diva2:1384246
Note

Funding Agencies|Swedish Government Strategic Research Area Grant in Materials Science on Advanced Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009 00971]; Olle Engkvist Foundation; competence center FunMat-II - Swedish Agency for Innovation Systems (Vinnova)Vinnova [2016-05156]

Available from: 2020-01-09 Created: 2020-01-09 Last updated: 2020-03-11

Open Access in DiVA

fulltext(994 kB)12 downloads
File information
File name FULLTEXT01.pdfFile size 994 kBChecksum SHA-512
50fc496d7766d05e38cf3594e02ffeb75208a699207b10420ad7371bc3b5c60cf180b8a37fb94ce67bb6e76601f09088006d7d1c653c47b7f277b3d6e776ff8e
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Edström, DanielSangiovanni, DavideLandälv, LudvigEklund, PerGreene, Joseph EPetrov, IvanHultman, LarsChirita, Valeriu
By organisation
Thin Film PhysicsFaculty of Science & EngineeringTheoretical Physics
In the same journal
Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films
Inorganic Chemistry

Search outside of DiVA

GoogleGoogle Scholar
Total: 12 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 29 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf