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Phase composition of Fe-containing Langmuir-Blodgett layers after thermal treatment in a reactive atmosphere (1993)

Meisel, W. ; Faldum, T. ; Sprenger, D. ; [et al.]

Springer

Fresenius' Zeitschrift für analytische Chemie 346 (1993), S. 110-113

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ISSN: 1618-2650

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Summary By the Langmuir-Blodgett technique, mono- and multilayers of ferric stearate were drawn onto silicon wafers. They were thermodesorbed in air at 250–300°C, and the layers formed in this way were found to consist of γ-FeOOH with defective stoichiometry. By heating in H2, the layers can be reduced to Fe2− and even to α-Fe. The latter is magnetically ordered and highly corrosion resistant. Chloride ions, however, induce fast corrosion. FeCl2, formed by this corrosion, is rather unstable and transforms to an Fe3+ phase. The high corrosion resistance of the metallic Fe layer is assumed to be due to its excellent homogeneity. The experiments were performed using XPS, AES, CEMS, and SEM.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00321393

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