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ASM Handbook

Metallography and Microstructures

Edited by
George F. Vander Voort
George F. Vander Voort
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ASM International
Volume
9
ISBN electronic:
978-1-62708-177-1
Publication date:
2004
Book Chapter

Microstructure and Domain Imaging of Magnetic Materials

By
Matthew A. Willard
Matthew A. Willard
Naval Research Laboratory
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George F. Vander Voort
George F. Vander Voort
Buehler Ltd.
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Published:
2004
Page range:
969 - 993
Publication history
November 01, 2004

Abstract

Microstructural analysis of specialized types of magnetic materials is centered on the examination of optical, electron, and scanning probe metallographic techniques unique to magnetic materials. This article provides a comprehensive overview of magnetic materials, their characteristics and sample preparation procedures. It reviews the methods pertaining to the microstructural examination of bulk magnetic materials, including microscopy techniques specified to magnetic materials characterization, with specific examples. The techniques used in the study of magnetic domain structures (microstructure) include the magneto-optical Kerr method, the Faraday method, the Bitter technique, scanning electron microscopy (magnetic contrast Types I and II), scanning electron microscopy with polarization analysis, Lorentz transmission electron microscopy, and magnetic force microscopy. The article also illustrates the microstructure of different types of soft magnetic material and permanent magnets.

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Matthew A. Willard, George F. Vander Voort, 2004. "Microstructure and Domain Imaging of Magnetic Materials", Metallography and Microstructures, George F. Vander Voort

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