XPS study of the effects of long-term Ar+ ion and Ar cluster sputtering on the chemical degradation of hydrozincite and iron oxide

Steinberger, R.; Walter, Juliane; Greunz, T.; Duchoslav, Jiri; Arndt, M.; Молодцов, С. Л.; Meyer, Dirk C.; Stifter, David

doi:10.1016/j.corsci.2015.06.019

Cited by 54 publications

(23 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The low content of Mo and S in the outmost surface may be attributed to the high content of O. It is well known that the sputtering rate of different elements varies greatly [37,38]. In the majority of cases, the greater the atomic mass of the element is, the lower the sputtering rate.…”

Section: Resultsmentioning

confidence: 99%

Friction of metal-matrix self-lubricating composites: Relationships among lubricant content, lubricating film coverage, and friction coefficient

Xiao

Zhang

et al. 2019

Friction

View full text Add to dashboard Cite

Metal-matrix self-lubricating composites can exhibit excellent tribological properties owing to the release of solid lubricant from the matrix and the formation of a lubricating film on the tribosurface. The coverage of the lubricating film on a worn surface significantly influences the sliding process. However, it is difficult to quantify the film coverage owing to the thin and discontinuous character of the lubricating film and the high roughness of the worn surface. A quantitative characterization of the lubricating film coverage based on X-ray photoelectron spectroscopy (XPS) analysis was developed in this study. The friction tests of Cu-MoS 2 composites with a MoS 2 content of 0-40 vol% were conducted, and the worn surfaces of the composites were observed and analyzed. Further, the influence of the MoS 2 volume content on the coverage of the lubricating film on the worn surface was investigated. The relationships among the volume fraction of the lubricant, coverage of the lubricating film, and the friction coefficient were established. The friction model for the metal matrix self-lubricating composites was developed and verified to facilitate the composition design and friction coefficient prediction of self-lubricating composites.

show abstract

Section: Resultsmentioning

confidence: 99%

Friction of metal-matrix self-lubricating composites: Relationships among lubricant content, lubricating film coverage, and friction coefficient

Xiao

Zhang

et al. 2019

Friction

View full text Add to dashboard Cite

show abstract

“…In a research of thin corrosion or passivation layers, it becomes necessary to know the chemical composition of these layers as well as their thickness. 4 Especially the knowledge about the oxidation or corrosion behavior of iron provides important information related to the utilization of protective passive films on its surface or the magnetic properties. Therefore, the understanding of the corrosion processes of iron is important when choosing the material for a certain purpose.…”

Section: Introductionmentioning

confidence: 99%

Thickness determination of corrosion layers on iron using XPS depth profiling

Kalina¹,

Bílek²,

Bušo³

et al. 2018

Mater. Tehnol.

View full text Add to dashboard Cite

The study deals with the methodology and thickness determination of the corrosion layers of ferritic steel samples using X-ray photoelectron spectroscopy (XPS) equipped with the ion-gun source system enabling destructive depth profiling. It is well known that XPS is one of the most often used techniques for determining both the thickness and chemical composition of passive films or corrosive layers. Unfortunately, the thickness of ion-gun-etched layers can only be estimated for simple samples and standards. Corrosion layers are heterogeneous and vary in composition; therefore, the etching rate is specific for each corrosion layer. The results of this work provide the possibility for a fast and easy determination of the ion-gun sputtering effect with exact settings for multi-compound chemical structures. The knowledge related to the thickness of corrosion or passivation layers would help greatly in their characterization. Keywords: X-ray photo-electron spectroscopy, ion gun, depth profiling, corrosion layer [tudija opisuje metodologijo in dolo~evanje debeline korozijskih plasti na vzorcih feritnega jekla z uporabo rentgenske fotoelektronske spektroskopije (XPS; angl.: X-ray Photoelectron Spectroscopy). Uporabljena naprava je bila opremljena z ionsko pu{ko, ki omogo~a destruktivno globinsko profiliranje. Znano je, da je XPS ena od najbolj uporabljanih tehnik za dolo~evanje tako debeline kot tudi kemijske sestave pasivacijskih filmov ali korozijskih plasti. @al se debelina plasti, jedkane z ionsko pu{ko, lahko oceni samo na enostavnih vzorcih in standardih. Korozijske plasti so heterogene in imajo spremenljivo kemijsko sestavo, zato je hitrost jedkanja specifi~na za vsako korozijsko plast posebej. Rezultati tega dela zagotavljajo mo`nost hitrega in enostavnega dolo~evanja u~inkov jedkanja z ionsko pu{ko z natan~nimi nastavitvami za ve~komponentne kemijske strukture. Znanje, pridobljeno v okviru tega dela, bo lahko v precej{njo pomo~pri karakterizaciji debeline korozijskih ali pasivacijskih plasti. Klju~ne besede: rentgenska fotoelektronska spektroskopija, ionska pu{ka, globinsko profiliranje, korozijska plast

show abstract

“…Because passivation degradation of Alloy 800 is an electrochemical process in essence, electrochemical methods such as polarization curve, electrochemical impedance spectroscopy (EIS) [8,19], electrochemical noise [38][39][40] et al are often used to investigate the corrosion degradation mechanism. In addition, analysis methods, such as Time-of-flight secondary ion mass spectrometry (ToF SIMS) [41][42][43], X-ray photoelectron spectroscopy [44][45][46], current sensing atomic force microscopy [47][48][49], Auger electron spectroscopy [50,51], are available to study the composition and structure of the passive layer. This paper presents our insight into the temperature and sulfurinduced passivity degradation on Alloy 800 in simulated alkaline crevice chemistries.…”

Section: Introductionmentioning

confidence: 99%

A mechanistic study on sulfur-induced passivity degradation on Alloy 800 in simulated alkaline crevice chemistries at temperatures ranging from 21 °C to 300 °C

et al. 2015

View full text Add to dashboard Cite

XPS study of the effects of long-term Ar+ ion and Ar cluster sputtering on the chemical degradation of hydrozincite and iron oxide

Cited by 54 publications

References 30 publications

Friction of metal-matrix self-lubricating composites: Relationships among lubricant content, lubricating film coverage, and friction coefficient

Friction of metal-matrix self-lubricating composites: Relationships among lubricant content, lubricating film coverage, and friction coefficient

Thickness determination of corrosion layers on iron using XPS depth profiling

A mechanistic study on sulfur-induced passivity degradation on Alloy 800 in simulated alkaline crevice chemistries at temperatures ranging from 21 °C to 300 °C

Contact Info

Product

Resources

About