Chemical Homogeneity of Nanocrystalline Zn–Mn Spinel Ferrites Obtained by High-Energy Ball Milling

Authors: Arcos D.1, 2; Valenzuela R.3; Vázquez M.2, 4; Vallet-Regí M.1

Source: Journal of Solid State Chemistry, Volume 141, Number 1, November 1998 , pp. 10-16(7)

Publisher: Academic Press

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Abstract:

Nanocrystalline Zn–Mn spinel ferrites have been obtained by high-energy ball milling from precursor oxides and carbonates (1) and hydroxides and oxides (2). From the measurement of initial magnetic permeability as a function of temperature, differences in chemical homogeneity have been observed. Structural and Curie point data reveal that dissolution of Mn2+ into the spinel structure is assisted by the presence of a hydroxide and an acid oxide. For fixed milling conditions, the influence of precursors leads to different chemical, structural, and magnetic properties in ferrites obtained by mechanochemical synthesis. Copyright 1998 Academic Press.

Language: English

Document Type: Research article

Affiliations: 1: Facultad de Farmacia, UCM, Madrid, 28040, Spain 2: Institute of Applied Magnetism (RENFE-UCM), Las Rozas, Madrid, Spain 3: Institute for Materials Research, National University of Mexico, Mexico City, Mexico 4: Institute of Materials Science, CSIC, Madrid, Spain

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