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Synthesis and chara...
Synthesis and characterization of MoB2-x thin films grown by nonreactive DC magnetron sputtering
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- Malinovskis, Paulius (författare)
- Uppsala universitet,Oorganisk kemi,Uppsala University, Sweden
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- Palisaitis, Justinas (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan,Linkoping Univ, Dept Phys Chem & Biol IFM, Thin Film Phys Div, SE-58183 Linkoping, Sweden.,Linköping university
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- Persson, Per (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan,Linkoping Univ, Dept Phys Chem & Biol IFM, Thin Film Phys Div, SE-58183 Linkoping, Sweden.,Linköping university
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- Lewin, Erik (författare)
- Uppsala universitet,Oorganisk kemi,Uppsala University, Sweden
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- Jansson, Ulf (författare)
- Uppsala universitet,Oorganisk kemi,Uppsala University, Sweden
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(creator_code:org_t)
- American Institute of Physics (AIP), 2016
- 2016
- Engelska.
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Ingår i: Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films. - : American Institute of Physics (AIP). - 0734-2101 .- 1520-8559. ; 34, s. 031511-1-031511-8
- Relaterad länk:
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http://scitation.aip...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- DC magnetron sputtering was used to depositmolybdenumboridethin films for potential low-friction applications. The films exhibit a nanocomposite structure with ∼10 nm large MoB2−x (x > 0.4) grains surrounded by a boron-rich tissue phase. The preferred formation of the metastable and substoichiometric hP3-MoB2structure (AlB2-type) is explained with kinetic constraints to form the thermodynamically stable hR18-MoB2 phase with a very complex crystal structure. Nanoindentation revealed a relatively high hardness of (29 ± 2) GPa, which is higher than bulk samples. The high hardness can be explained by a hardening effect associated with the nanocomposite microstructure where the surrounding tissue phase restricts dislocation movement. A tribological study confirmed a significant formation of a tribofilm consisting of molybdenum oxide and boron oxide, however, without any lubricating effects at room temperature.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
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