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Near-surface analys...
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Srinath, AishwaryaUppsala universitet,Oorganisk kemi
(författare)
Near-surface analysis of magnetron sputtered AlCrNbYZrNx high entropy materials resolved by HAXPES
- Artikel/kapitelEngelska2024
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Elsevier,2024
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electronicrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:uu-466218
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-466218URI
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https://doi.org/10.1016/j.apsusc.2024.160349DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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Hard X-ray photoelectron spectroscopy (HAXPES) was used to perform a non-destructive depth profile of AlCrNbYZrNx (x = 0 to ∼50 at.%) thin films. The outermost native oxide of the pristine thin films contained the highest coordination oxides of every metal. Substoichiometric oxides or oxynitrides were found underneath. After exposure to 1.0 M HCl, increases in the most highly coordinated oxides of Cr, Nb, and Al in films with up to 37 at.% N were observed, suggesting that the low coordination oxides and oxynitrides in the subsurface had been further oxidised and were intermediary compounds in the passivation process. Al and Y oxides were lost to the HCl electrolyte, in agreement with their respective Pourbaix diagrams. The film with 49 at.% N showed little to no change in the data due to its high porosity which led to the oxide being detected at all probed depths. The metal core level spectra revealed a preferential order in which nitrogen bonded with the different metals. Nitrogen interacted first with Y, then Zr, then Al and Nb, and lastly Cr as the nitrogen content was increased.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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von Fieandt, KristinaUppsala universitet,Oorganisk kemi(Swepub:uu)krijo958
(författare)
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Fritze, StefanUppsala universitet,Oorganisk kemi(Swepub:uu)stefr186
(författare)
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Nyholm, Leif,1961-Uppsala universitet,Oorganisk kemi(Swepub:uu)lny18455
(författare)
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Lewin, Erik,Dr.1979-Uppsala universitet,Oorganisk kemi(Swepub:uu)leeri169
(författare)
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Lindblad, Rebecka,Dr,1984-Uppsala universitet,Energimaterialens fysik,Fysikalisk kemi,Oorganisk kemi(Swepub:uu)rebsc244
(författare)
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Uppsala universitetOorganisk kemi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Applied Surface Science: Elsevier6660169-43321873-5584
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