An investigation of the properties of epitaxial chromium-substituted vanadium carbide thin films

John Carroll; Robert Krchnavek; Carl Lunk; Theodore Scabarozi; Samuel Lofland; Jeffrey Hettinger

doi:10.1016/j.vacuum.2014.07.008

An investigation of the properties of epitaxial chromium-substituted vanadium carbide thin films

Physics

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3 Scopus citations

Abstract

We report on the synthesis and physical properties of epitaxial Cr-substituted vanadium carbide (V_1-xCr_x)₂C thin films deposited on c-axis sapphire by magnetron sputtering using a co-deposition technique. Solid solutions were found to form up to x ≈ 0.5 over a wide range of deposition temperatures. In general, it was found that surface roughness is dependent on the degree of crystallinity as well as the deposition temperature. However, the surface friction was remarkably low, as long as the surface roughness remained below a critical value of about 2 nm. Even for relatively small amounts of Cr (x ∼ 0.1), there was significantly enhanced corrosion resistance over that of V₂C.

Original language	English (US)
Pages (from-to)	212-215
Number of pages	4
Journal	Vacuum
Volume	109
DOIs	https://doi.org/10.1016/j.vacuum.2014.07.008
State	Published - Nov 2014

All Science Journal Classification (ASJC) codes

Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films

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10.1016/j.vacuum.2014.07.008

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title = "An investigation of the properties of epitaxial chromium-substituted vanadium carbide thin films",

abstract = "We report on the synthesis and physical properties of epitaxial Cr-substituted vanadium carbide (V1-xCrx)2C thin films deposited on c-axis sapphire by magnetron sputtering using a co-deposition technique. Solid solutions were found to form up to x ≈ 0.5 over a wide range of deposition temperatures. In general, it was found that surface roughness is dependent on the degree of crystallinity as well as the deposition temperature. However, the surface friction was remarkably low, as long as the surface roughness remained below a critical value of about 2 nm. Even for relatively small amounts of Cr (x ∼ 0.1), there was significantly enhanced corrosion resistance over that of V2C.",

author = "John Carroll and Robert Krchnavek and Carl Lunk and Theodore Scabarozi and Samuel Lofland and Jeffrey Hettinger",

note = "Funding Information: This work was supported in part by NSF Grant CHE-0641523 . Any opinions, findings, conclusions or recommendations expressed are those of the author(s) and do not necessarily reflect the views of NSF.",

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doi = "10.1016/j.vacuum.2014.07.008",

language = "English (US)",

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T1 - An investigation of the properties of epitaxial chromium-substituted vanadium carbide thin films

AU - Carroll, John

AU - Krchnavek, Robert

AU - Lunk, Carl

AU - Scabarozi, Theodore

AU - Lofland, Samuel

AU - Hettinger, Jeffrey

N1 - Funding Information: This work was supported in part by NSF Grant CHE-0641523 . Any opinions, findings, conclusions or recommendations expressed are those of the author(s) and do not necessarily reflect the views of NSF.

PY - 2014/11

Y1 - 2014/11

N2 - We report on the synthesis and physical properties of epitaxial Cr-substituted vanadium carbide (V1-xCrx)2C thin films deposited on c-axis sapphire by magnetron sputtering using a co-deposition technique. Solid solutions were found to form up to x ≈ 0.5 over a wide range of deposition temperatures. In general, it was found that surface roughness is dependent on the degree of crystallinity as well as the deposition temperature. However, the surface friction was remarkably low, as long as the surface roughness remained below a critical value of about 2 nm. Even for relatively small amounts of Cr (x ∼ 0.1), there was significantly enhanced corrosion resistance over that of V2C.

AB - We report on the synthesis and physical properties of epitaxial Cr-substituted vanadium carbide (V1-xCrx)2C thin films deposited on c-axis sapphire by magnetron sputtering using a co-deposition technique. Solid solutions were found to form up to x ≈ 0.5 over a wide range of deposition temperatures. In general, it was found that surface roughness is dependent on the degree of crystallinity as well as the deposition temperature. However, the surface friction was remarkably low, as long as the surface roughness remained below a critical value of about 2 nm. Even for relatively small amounts of Cr (x ∼ 0.1), there was significantly enhanced corrosion resistance over that of V2C.

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DO - 10.1016/j.vacuum.2014.07.008

M3 - Article

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VL - 109

SP - 212

EP - 215

JO - Vacuum

JF - Vacuum

ER -

An investigation of the properties of epitaxial chromium-substituted vanadium carbide thin films

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