Faculty Publications

Title

A Mössbauer evaluation of cation distribution in titanomagnetites

Document Type

Article

Keywords

Cation distribution, Magnetization, Mössbauer spectroscopy, Spinel, Titanomagnetites

Journal/Book/Conference Title

Journal of Magnetism and Magnetic Materials

Volume

191

Issue

1-2

First Page

72

Last Page

78

Abstract

Peak area analyses of Mössbauer spectra were used to directly appraise models of cation distribution in synthetic titanomagnetites, TixFe3_xO4(0 < x < 1). For x < 0.30, room-temperature and zero-field data were sufficient for this purpose. At higher Ti concentrations, however, they were inconclusive or ineffective because the Mössbauer signals from Fe ions on both tetrahedral and octahedral sites were inextricable. Instead, Mössbauer spectra were collected at 4.2 K in a 7 T magnetic field. In these spectra, the signal from Fe3+ ions on the tetrahedral sites of the cubic spinels was effectively delineated, and on the basis of its area fraction a new cation distribution is proposed. © 1999 Elsevier Science B. V. All rights reserved.

Original Publication Date

1-1-1999

DOI of published version

10.1016/S0304-8853(98)00340-0

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