Roughness and oxidation: application to NiO growth on Ni at 800°C

Huntz, A.M.; Lefèvre, Brigitte; Cassino, Flávio Sandro Lays

doi:10.1016/s0921-5093(00)00944-8

Cited by 38 publications

(25 citation statements)

References 13 publications

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“…The surface mean roughness is at the 1.4 nm range, due to the undulations existing in several regions of the film. The increase of the roughness is well explained by the oxidation process of Ni in high temperatures in air …”

Section: Resultsmentioning

confidence: 80%

Growth of Au Nanoparticles in NiO via Short Annealing of Precursor Material Thin Film and Optimization of Plasmonics

Grammatikopoulos

Stamatelatos

Delimitis

et al. 2017

Physica Status Solidi (a)

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Au-Ni-O thin films are produced by co-deposition of Au and Ni in a simple sputter coater with a base pressure of 2.5 Â 10 À2 mbar. The as-deposited material is comprised of a mixture of tiny grains of crystalline gold, metallic hexagonal nickel and nickel oxide. Part of the material is still amorphous. Post-deposition annealing at 530 C in a furnace in air leads to the formation of nanocomposite thin films of Au and NiO. The plasmonic behavior evolution was studied with annealing time between 2 min and 30 h in films with an initial thickness between 3 and 54 nm. Films with thickness of up to 10 nm show broad localized surface plasmon resonances already in the as-deposited state, due to the presence of nanograins of gold in the dielectric matrix of NiO. Plasmonic resonances become sharp and have a blue shift tendency as the annealing time increases. This plasmonic system produced via a costeffective way may well be useful for a variety of technological applications.

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Section: Resultsmentioning

confidence: 80%

Growth of Au Nanoparticles in NiO via Short Annealing of Precursor Material Thin Film and Optimization of Plasmonics

Grammatikopoulos

Stamatelatos

Delimitis

et al. 2017

Physica Status Solidi (a)

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“…Indeed, Cr diffusion towards the surface is accelerated but Fe diffusion is also accelerated [59]. Moreover, studies carried out metal by Huntz et al [60] on pure Ni metal, showed that oxide roughness was coarser at the grain boundaries of the metal and increased with the initial surface roughness of the metal. In the same way, the size of the oxide grains also increases with the initial roughness of the metal.…”

Section: Effect Of Surface Topography On High Temperature Oxidationmentioning

confidence: 99%

High temperature oxidation of IN 718 manufactured by laser beam melting and electron beam melting: Effect of surface topography

2018

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A B S T R A C TThe oxidation behaviour of IN 718 alloys produced by laser beam melting and electron beam melting was compared to that of the wrought alloy at 850°C in laboratory air. Oxide scales of all alloys were similar in nature and morphology with small differences due to powder particles sintered on the surface of additive manufacturing parts. Nevertheless, major differences in surface topography were noticed, these could affect surface area estimations and consequentlymass gain estimations. A quantitative correlation was determined between apparent parabolic rate constant and surface area.

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“…Surface roughness of the substrate has a great influence on the adhesion of thermally sprayed coatings and therefore on their lifetime [21][22][23], corrosion resistance of many materials [16,24], in diffusion bonding [25] and tribological behavior of the surfaces [22,26]. Accuracy in evaluation of surface roughness and its topography is of great importance in those applications.…”

Section: Surface Roughness Evaluationmentioning

confidence: 99%

“Mechanically prepared copper surface in oxidizing and non-oxidizing conditions”

Serafin

Nowak

Wierzba

2019

Applied Surface Science

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In the present work surface roughness of copper samples after mechanical surface preparation processes (polishing, grinding, sand-blasting) and after exposure in non-oxidizing (high purity argon) and oxidizing (air) conditions at 700 and 750°C have been evaluated by contact profilometer and by fractal analysis. Quantitative description of surfaces that are hidden from the sight of conventional methods is possible by fractal analysis, e.g. in the present work, the roughness of Cu 2 O/Cu boundary has been evaluated under oxide layer. It has been pointed out, that in both oxidizing and non-oxidizing conditions initial surface roughness of copper is affected by annealing at high temperature: at 700°C surface roughness of polished and ground samples increased but at 750°C decreased in comparison to surface roughness prior to heat treatment. For sand-blasted samples in both oxidizing and non-oxidizing conditions the lowest values of surface roughness parameters were obtained at 750°C. It is then concluded that two phenomena are responsible for such effect: chemical reaction between copper and oxygen and surface diffusion of copper due to high temperature of annealing.

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Roughness and oxidation: application to NiO growth on Ni at 800°C

Cited by 38 publications

References 13 publications

Growth of Au Nanoparticles in NiO via Short Annealing of Precursor Material Thin Film and Optimization of Plasmonics

Growth of Au Nanoparticles in NiO via Short Annealing of Precursor Material Thin Film and Optimization of Plasmonics

High temperature oxidation of IN 718 manufactured by laser beam melting and electron beam melting: Effect of surface topography

“Mechanically prepared copper surface in oxidizing and non-oxidizing conditions”

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