NDLI: Properties of Goethite Grown under the Presence of Cr3+, Cu2+ and Mn2+ Ions

Content Provider	Springer Nature Link
Author	Morales, A. L. Barrero, C. A. Jaramillo, F. Arroyave, C. Greneche, J. M.
Copyright Year	2003
Abstract	This study is focused on properties of goethite related to the inhibition of the corrosion process in low alloy, weathering steels. These steels are characterized by the presence of small amounts of Cr3+, Cu2+ and Mn2+ ions, which drive their protecting behavior in mild atmospheres. Several goethite samples with 5 mole % content of the alloying elements in nominal composition are synthesized by a hydrolysis route. Additionally, Cl−, SO4 2− are used as precursor ions in order to simulate the presence of atmospheric pollutants. All samples are analyzed by X-ray diffraction and 57Fe transmission Mössbauer spectroscopy (MS). The presence of the alloying elements and pollutant ions reduces the overall magnetic interactions in goethite, which is reflected in the lowering of the hyperfine field of maximum probability at 77 K, in comparison to that of pure goethites. However, the mechanisms of the magnetic interaction reductions are different for each combination of alloying element and pollutant ions. Finally the combined effect of anions and cations produces a wider distribution of particle sizes.
Starting Page	135
Ending Page	144
Page Count	10
File Format	PDF
ISSN	03043843
Journal	Hyperfine Interactions
Volume Number	148
Issue Number	1-4
e-ISSN	15729540
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2003-01-01
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Nuclear Physics, Heavy Ions, Hadrons Atoms, Molecules, Clusters and Plasmas Condensed Matter Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Atomic and Molecular Physics, and Optics Physical and Theoretical Chemistry Condensed Matter Physics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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