Extrusion of strontium hexaferrite magnets with radial alignment using hydrothermally synthesized powder

Zhicong Yuan; Stuart Blackburn; Andrew Williams; Ivor Harris

doi:10.1109/TMAG.2002.803070

Extrusion of strontium hexaferrite magnets with radial alignment using hydrothermally synthesized powder

Zhicong Yuan, Stuart Blackburn, Andrew Williams, Ivor Harris

Research output: Contribution to journal › Article

Abstract

Hydrothermally synthesized strontium hexaferrite (HT-SrM) powder was combined with an ethylvinylacetate (EVA)-paraffin wax system to give an extrudable paste from which tubular magnets were produced. Due to the very high specific surface area of the plate-like hexaferrite particles, the maximum solids loading was similar to46 vol% when mixed at 120 degreesC. Using such pastes, a degree of radial magnetic alignment in tubular extrudates was induced by the paste flow. The extrusion parameters and the influence of die gap on the orientation of SrM particles have been investigated.

Original language	English
Pages (from-to)	2925-2927
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	38
Issue number	5
DOIs	https://doi.org/10.1109/TMAG.2002.803070
Publication status	Published - 1 Sept 2002

Keywords

hydrothermal synthesis
extrusion
strontium hexaferrite
anisotropic magnets

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10.1109/TMAG.2002.803070

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title = "Extrusion of strontium hexaferrite magnets with radial alignment using hydrothermally synthesized powder",

abstract = "Hydrothermally synthesized strontium hexaferrite (HT-SrM) powder was combined with an ethylvinylacetate (EVA)-paraffin wax system to give an extrudable paste from which tubular magnets were produced. Due to the very high specific surface area of the plate-like hexaferrite particles, the maximum solids loading was similar to46 vol% when mixed at 120 degreesC. Using such pastes, a degree of radial magnetic alignment in tubular extrudates was induced by the paste flow. The extrusion parameters and the influence of die gap on the orientation of SrM particles have been investigated.",

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AU - Yuan, Zhicong

AU - Blackburn, Stuart

AU - Williams, Andrew

AU - Harris, Ivor

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Y1 - 2002/9/1

N2 - Hydrothermally synthesized strontium hexaferrite (HT-SrM) powder was combined with an ethylvinylacetate (EVA)-paraffin wax system to give an extrudable paste from which tubular magnets were produced. Due to the very high specific surface area of the plate-like hexaferrite particles, the maximum solids loading was similar to46 vol% when mixed at 120 degreesC. Using such pastes, a degree of radial magnetic alignment in tubular extrudates was induced by the paste flow. The extrusion parameters and the influence of die gap on the orientation of SrM particles have been investigated.

AB - Hydrothermally synthesized strontium hexaferrite (HT-SrM) powder was combined with an ethylvinylacetate (EVA)-paraffin wax system to give an extrudable paste from which tubular magnets were produced. Due to the very high specific surface area of the plate-like hexaferrite particles, the maximum solids loading was similar to46 vol% when mixed at 120 degreesC. Using such pastes, a degree of radial magnetic alignment in tubular extrudates was induced by the paste flow. The extrusion parameters and the influence of die gap on the orientation of SrM particles have been investigated.

KW - hydrothermal synthesis

KW - extrusion

KW - strontium hexaferrite

KW - anisotropic magnets

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5

ER -

Extrusion of strontium hexaferrite magnets with radial alignment using hydrothermally synthesized powder

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Keywords

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