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Design of carbide-based nanocomposite thin films by selective alloying
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Inorganic Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Inorganic Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
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2011 (English)In: Surface & Coatings Technology, ISSN 0257-8972, E-ISSN 1879-3347, Vol. 206, no 4, 583-590 p.Article in journal (Refereed) Published
Abstract [en]

This paper reviews a series of studies on alloying of sputtered TiC coatings with weak carbide-forming metals, Me, such as Al, Fe, Ni, Pt and Cu. Metastable solid solutions with Me on the Ti sites are easily obtained by magnetron sputtering at low temperatures (< 300 °C). First principles density functional theory (DFT) calculations of such carbides show that a driving force exists to remove carbon from the structure as an alternative and kinetically more favourable route compared to Me precipitation. This leads to a situation where additional control of the phase composition is given by annealing: both direct influence during film growth, as well as through subsequent annealing. Thus, alloying of the nanocomposite with weak carbide-forming metals can be used to tune many mechanical, electric and magnetic properties of a carbide-based nanocomposite film.

Place, publisher, year, edition, pages
2011. Vol. 206, no 4, 583-590 p.
Keyword [en]
Nanocomposite, Metastable phases, Alloying, Microstructure, Carbide
National Category
Inorganic Chemistry Engineering and Technology
Research subject
Engineering Science with specialization in Materials Science
Identifiers
URN: urn:nbn:se:uu:diva-123484DOI: 10.1016/j.surfcoat.2010.06.017ISI: 000297086700002OAI: oai:DiVA.org:uu-123484DiVA: diva2:314585
Available from: 2010-04-27 Created: 2010-04-27 Last updated: 2017-12-12Bibliographically approved

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Jansson, UlfLewin, ErikRåsander, MikaelEriksson, OlleAndré, BennyWiklund, Urban

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