Temperature dependent energy-dispersive X-ray diffraction and magnetic study of Fe/Al interface

Brajpuriya, R.; Tripathi, S.; Sharma, A.; Chaudhari, S. M.; Phase, D. M.; Gupta, Ajay; Shripathi, T.; Leitenberger, W.; Pietsch, U.; Laxmi, N.

doi:10.1016/j.apsusc.2007.04.069

Cited by 2 publications

(1 citation statement)

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“…There were also several in-situ XRD studies presented in the literature [23e26]. The work of Brajpurya et al [26] describes the phases' evolution in deposited Fe/Al multi-layers during annealing at 300 C. Surprisingly, only FeAl phase was observed in this system. No other transient phases were detected.…”

Section: Introductionmentioning

confidence: 99%

On the formation of intermetallics in Fe–Al system – An in situ XRD study

et al. 2013

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a b s t r a c tSelf-propagating high-temperature synthesis (SHS) was previously proposed as alternative preparation route for FeeAl intermetallics. However, this process was not optimized and the mechanism and kinetics of the phases' formation was not fully clarified up to current days. In this work, in situ high energy X-ray diffraction analysis was carried out during the SHS process and the mechanism of the intermetallic' formation in FeAl25 powder mixture was described during rapid heating and isothermal annealing at 800 C as well as during a slower continuous heating to 900 C. During slower heating, the formation of Fe 2 Al 5 and FeAl 2 intermetallics starts below the melting point of aluminium. When the heating rate is high, intermetallics are created after melting of aluminium. During long-term annealing, all of the phases can be transformed to FeAl phase when fine powders were applied. Detailed mechanism is proposed in this paper and kinetics of the intermetallics' formation is described.

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Section: Introductionmentioning

confidence: 99%