Influence of Oxygen Dissociation on the Oxidation of Iron

Zheludkevich, Mikhail L.; Gusakov, A. G.; Voropaev, A. G.; Vecher, A.A.; Yasakau, K.A.; Ferreira, M.G.S.

doi:10.1007/s11085-004-7809-5

Cited by 10 publications

(2 citation statements)

References 7 publications

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“…Moreover, partial interfacial control of oxidation kinetics may also be expected [27]. Zheludkevich et al [28] have studied the influence of oxygen dissociation on the iron oxidation rate: It was found negligible at 300-800°C. However, in ambient air, the water vapor present in the atmosphere could affect interfacial reactions [29].…”

Section: Introductionmentioning

confidence: 99%

Iron Oxidation at Low Temperature (260–500 °C) in Air and the Effect of Water Vapor

et al. 2009

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The oxidation of iron has been studied at low temperatures (between 260 and 500°C) in dry air or air with 2 vol% H 2 O, in the framework of research on dry corrosion of nuclear waste containers during long-term interim storage. Pure iron is regarded as a model material for low-alloyed steel. Oxidation tests were performed in a thermobalance (up to 250 h) or in a laboratory furnace (up to 1000 h). The oxide scales formed were characterized using SEM-EDX, TEM, XRD, SIMS and EBSD techniques. The parabolic rate constants deduced from microbalance experiments were found to be in good agreement with the few existing values of the literature. The presence of water vapor in air was found to strongly influence the transitory stages of the kinetics. The entire structure of the oxide scale was composed of an internal duplex magnetite scale made of columnar grains and an external hematite scale made of equiaxed grains. 18 O tracer experiments performed at 400°C allowed to propose a growth mechanism of the scale.

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Section: Introductionmentioning

confidence: 99%

Iron Oxidation at Low Temperature (260–500 °C) in Air and the Effect of Water Vapor

et al. 2009

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“…The kinetics of the process depends, among other things, on the composition of the cut metal, and the activity of oxygen. Kinetics of oxidation of iron in molecular oxygen has been studied over a wide temperature range (Zheludkevich et al, 2004). The influence of oxygen predissociation on the activity of oxygen has also been reported.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of oxyfuel gas cutting of steels

Adedayo¹

2011

J. Braz. Soc. Mech. Sci. & Eng.

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Preparation and characterization of maghemite nanoparticles from mild steel for magnetically guided drug therapy

Kumar

Kulkarni

Behera

et al. 2017

J Mater Sci: Mater Med

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Maghemite (γ-Fe O) nanoparticles for therapeutic applications are prepared from mild steel but the existing synthesis technique is very cumbersome. The entire process takes around 100 days with multiple steps which lack proper understanding. In the current work, maghemite nanoparticles of cuboidal and spheroidal morphologies were prepared from mild steel chips by a novel cost effective oil reduction technique for magnetically guided intravascular drug delivery. The technique developed in this work yields isometric sized γ-Fe O nanoparticles in 6 h with higher saturation magnetization as compared to the existing similar solid state synthesis route. Mass and heat flow kinetics during the heating and quenching steps were studied with the help of Finite element simulations. Qualitative and quantitative analysis of the γ-Fe O phase is performed with the help of x-ray diffraction, transmission electron microscope and x-ray photoelectron spectroscopy. Mechanism for the α-Fe O (haematite) to γ-Fe O (maghemite) phase evolution during the synthesis process is also investigated. Maghemite (γ-FeO) nanoparticles were prepared bya novel cost effective oil reduction technique as mentioned below in the figure. The raw materials included mild steel chips which is one of the most abundant engineering materials. These particles can be used as ideal nanocarriers for targeted drug delivery through the vascular network.

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Influence of Oxygen Dissociation on the Oxidation of Iron

Cited by 10 publications

References 7 publications

Iron Oxidation at Low Temperature (260–500 °C) in Air and the Effect of Water Vapor

Iron Oxidation at Low Temperature (260–500 °C) in Air and the Effect of Water Vapor

Kinetics of oxyfuel gas cutting of steels

Preparation and characterization of maghemite nanoparticles from mild steel for magnetically guided drug therapy

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