Preparation and Magnetic Properties of Dense NiCuZn Ferrite by Spark Plasma Sintering

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Dense NiCuZn ferrites consisting of fine grains were prepared by spark plasma sintering (SPS) at 750°C for 3 min under a uniaxial pressure of 15 MPa. The powders were densified to >95% of theoretical density by the SPS process, and the average grain size of the prepared NiCuZn ferrite was < 1 /m. The saturation magnetization of prepared specimens (without further annealing treatment) was approximate 50.54 emu/g, which was slightly smaller than that of 52.21 emu/g for specimens prepared by conventional sintering at 980°C for 4 h. Phase identifications indicated that prepared NiCuZn ferrite existed impurity phase (Cu2O), and Cu2O would gradually transform to CuO when annealing temperature increased.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

601-603

DOI:

10.4028/www.scientific.net/KEM.368-372.601

Citation:

X. W. Qi et al., "Preparation and Magnetic Properties of Dense NiCuZn Ferrite by Spark Plasma Sintering", Key Engineering Materials, Vols. 368-372, pp. 601-603, 2008

Online since:

February 2008

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$35.00

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