Effects of magnetic field on fracture toughness of manganese-zinc ferrite ceramics

Y. P. Wan; D. N. Fang; A. K. Soh

doi:10.1142/S0217984903004944

Effects of magnetic field on fracture toughness of manganese-zinc ferrite ceramics

Y. P. Wan, D. N. Fang^*, A. K. Soh

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Effects of magnetic field on the fracture toughness of magnetic ceramics were experimentally investigated by the use of the single-edge-notch-beam (SENB) specimens of three kinds of manganese-zinc ferrite ceramics with different permeability. Results indicate that there is no significant change in the measured fracture toughness of the Manganese-Zinc Ferrite ceramics in the presence of the magnetic field. Furthermore, the crack lengths caused by the Vickers' indentation on the manganese-zinc ferrite ceramics show that the fracture toughness in the magnetic field direction is almost identical to that in the direction perpendicular to the magnetic field. This reveals that the polycrystalline ceramic still exhibits isotropic fracture behavior after magnetization. Finally, a qualitative explanation is given in terms of a small-scale magnetic saturation model.

Original language	English
Pages (from-to)	57-66
Number of pages	10
Journal	Modern Physics Letters B
Volume	17
Issue number	2
DOIs	https://doi.org/10.1142/S0217984903004944
Publication status	Published - 30 Jan 2003
Externally published	Yes

Keywords

Fracture toughness
Magnetic field
Manganese-zinc ferrite ceramic
Small-scale magnetic saturation

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10.1142/S0217984903004944

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title = "Effects of magnetic field on fracture toughness of manganese-zinc ferrite ceramics",

abstract = "Effects of magnetic field on the fracture toughness of magnetic ceramics were experimentally investigated by the use of the single-edge-notch-beam (SENB) specimens of three kinds of manganese-zinc ferrite ceramics with different permeability. Results indicate that there is no significant change in the measured fracture toughness of the Manganese-Zinc Ferrite ceramics in the presence of the magnetic field. Furthermore, the crack lengths caused by the Vickers' indentation on the manganese-zinc ferrite ceramics show that the fracture toughness in the magnetic field direction is almost identical to that in the direction perpendicular to the magnetic field. This reveals that the polycrystalline ceramic still exhibits isotropic fracture behavior after magnetization. Finally, a qualitative explanation is given in terms of a small-scale magnetic saturation model.",

keywords = "Fracture toughness, Magnetic field, Manganese-zinc ferrite ceramic, Small-scale magnetic saturation",

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AU - Wan, Y. P.

AU - Fang, D. N.

AU - Soh, A. K.

PY - 2003/1/30

Y1 - 2003/1/30

N2 - Effects of magnetic field on the fracture toughness of magnetic ceramics were experimentally investigated by the use of the single-edge-notch-beam (SENB) specimens of three kinds of manganese-zinc ferrite ceramics with different permeability. Results indicate that there is no significant change in the measured fracture toughness of the Manganese-Zinc Ferrite ceramics in the presence of the magnetic field. Furthermore, the crack lengths caused by the Vickers' indentation on the manganese-zinc ferrite ceramics show that the fracture toughness in the magnetic field direction is almost identical to that in the direction perpendicular to the magnetic field. This reveals that the polycrystalline ceramic still exhibits isotropic fracture behavior after magnetization. Finally, a qualitative explanation is given in terms of a small-scale magnetic saturation model.

AB - Effects of magnetic field on the fracture toughness of magnetic ceramics were experimentally investigated by the use of the single-edge-notch-beam (SENB) specimens of three kinds of manganese-zinc ferrite ceramics with different permeability. Results indicate that there is no significant change in the measured fracture toughness of the Manganese-Zinc Ferrite ceramics in the presence of the magnetic field. Furthermore, the crack lengths caused by the Vickers' indentation on the manganese-zinc ferrite ceramics show that the fracture toughness in the magnetic field direction is almost identical to that in the direction perpendicular to the magnetic field. This reveals that the polycrystalline ceramic still exhibits isotropic fracture behavior after magnetization. Finally, a qualitative explanation is given in terms of a small-scale magnetic saturation model.

KW - Fracture toughness

KW - Magnetic field

KW - Manganese-zinc ferrite ceramic

KW - Small-scale magnetic saturation

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Effects of magnetic field on fracture toughness of manganese-zinc ferrite ceramics

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Keywords

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