Synthesis and characterisation of Mo-B-C thin films deposited by non-reactive DC magnetron sputtering

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Sökning: WFRF:(Jansson Per O.) > Synthesis and chara...

Malinovskis, PauliusUppsala universitet,Oorganisk kemi,Uppsala University, Sweden (författare)

Synthesis and characterisation of Mo-B-C thin films deposited by non-reactive DC magnetron sputtering

Artikel/kapitelEngelska2017

Förlag, utgivningsår, omfång ...

ELSEVIER SCIENCE SA,2017
printrdacarrier

Nummerbeteckningar

LIBRIS-ID:oai:DiVA.org:uu-319135
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-319135URI
https://doi.org/10.1016/j.surfcoat.2016.12.003DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-136177URI

Kompletterande språkuppgifter

Språk:engelska
Sammanfattning på:engelska

Ingår i deldatabas

SwePubSwePub

Klassifikation

Ämneskategori:ref swepub-contenttype
Ämneskategori:art swepub-publicationtype

Anmärkningar

Funding Agencies|Swedish Research Council [621-2012-4359, 622-2008-405]; Knut and Alice Wallenbergs Foundation; Swedish Foundation for Strategic Research, SSF (FunCase) [RMA11-0029]
Thin films in the Mo-B-C system with varying carbon content (up to 37 at.%) were deposited using non-reactive DC magnetron sputtering. The phase composition and microstructure were determined and the potential use of the films in sliding electrical contact applications was evaluated. Films with lower than 23 at.% carbon content consisted of nanocrystalline MoB2 - x grains surrounded by an amorphous tissue phase (a-B for binary, and a-BCx for ternary films). With increasing carbon content grain sizes was found to decrease (from 16 to 5 nm), and above 23 at.% carbon the films deposited at room temperature were X-ray amorphous. Scanning transmission electron microscopy and energy dispersive X-ray spectroscopy reveal that these films contain Mo-rich and Mo-poor regions, and thus are two-phase amorphous nanocomposites. Low-carbon content samples exhibited a friction coefficient against the steel counter surface of 1.1; this was reduced to 0.8 for high carbon-content films. Analysis of the tribofilm revealed formation of molybdenum oxide and amorphous carbon, however without significant lubricating effect at room temperature. Hardness and elastic modulus decrease with carbon content from similar to 29 to similar to 22 GPa and similar to 526 to similar to 326 GPa. These values give an WE ratio of 0.06 to 0.07, indicating brittle material. Resistivity was found to increase with carbon content from similar to 175 mu Omega cm for binary Mo-B to similar to 395 mu Omega cm for Mo-B-C thin film with 37 at.% of C. Therefore all the above results suggest that the Mo-B-C films are not suitable for sliding electrical contacts.

Ämnesord och genrebeteckningar

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
Mo-B-C
Magnetron sputtering
Films
Hard coatings
Molybdenum diboride
Nanocomposite

Biuppslag (personer, institutioner, konferenser, titlar ...)

Palisaitis, JustinasLinköpings universitet,Tunnfilmsfysik,Tekniska fakulteten(Swepub:liu)juspa01 (författare)
Persson, Per O ALinköpings universitet,Tunnfilmsfysik,Tekniska fakulteten(Swepub:liu)perpe25 (författare)
Jansson, UlfUppsala universitet,Oorganisk kemi,Uppsala University, Sweden(Swepub:uu)uja03434 (författare)
Lewin, ErikUppsala universitet,Oorganisk kemi,Uppsala University, Sweden(Swepub:uu)leeri169 (författare)
Uppsala universitetOorganisk kemi (creator_code:org_t)

Sammanhörande titlar

Ingår i:Surface & Coatings Technology: ELSEVIER SCIENCE SA309, s. 506-5150257-89721879-3347

Internetlänk

Hitta via bibliotek

Surface & Coatings Technology (Sök värdpublikationen i LIBRIS)

Till lärosätets databas

Hitta mer i SwePub

Av författaren/redakt...: Malinovskis, Pau ...; Palisaitis, Just ...; Persson, Per O A; Jansson, Ulf; Lewin, Erik

Om ämnet

NATURVETENSKAP: NATURVETENSKAP; och Kemi; och Materialkemi

NATURVETENSKAP: NATURVETENSKAP; och Kemi; och Oorganisk kemi

Artiklar i publikationen: Surface & Coatin ...

Av lärosätet: Uppsala universitet; Linköpings universitet

Sök utanför SwePub

Sök vidare i:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se