Microwave hydrothermal synthesis of nanosize Ta2O5 added Mg-Cu-Zn ferrites

Ta2O5-added MgCuZn ferrite powders were synthesised by a co-precipitation method using NaOH in a microwave-hydrothermal (M-H) apparatus. The phases of the prepared samples were analysed by XRD, and crystal size and morphology were determined by TEM. Nano-phase ferrites with high surface area were sy...

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Bibliographic Details
Published inJournal of materials science Vol. 41; no. 5; pp. 1471 - 1474
Main Authors Krishnaveni, T, Murthy, S R, Gao, F, Lu, Q, Komarneni, S
Format Journal Article
LanguageEnglish
Published New York Springer Nature B.V 01.03.2006
Subjects
Ferrites
Hydrothermal crystal growth
Magnesium
Materials science
Morphology
Sintering (powder metallurgy)
Sodium hydroxide
Synthesis
Tantalum oxides
Transmission electron microscopy
X-ray diffraction
Zinc
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Summary:Ta2O5-added MgCuZn ferrite powders were synthesised by a co-precipitation method using NaOH in a microwave-hydrothermal (M-H) apparatus. The phases of the prepared samples were analysed by XRD, and crystal size and morphology were determined by TEM. Nano-phase ferrites with high surface area were synthesised at 160 C after a treatment time of 1 h. The M-H synthesised powders were conventionally sintered at a temperature of 900 C/4 h. The variations in sintered density, initial permeability and electrical resistivity as a function of additive concentration at room temperature were investigated. 13 refs.
Bibliography:ObjectType-Article-2
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ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-006-7488-5