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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730051
EISBN: 978-1-62708-283-9
...Abstract Abstract This chapter is a review of magnetic materials and how they behave. It begins by discussing the significance of ferromagnetism and comparing the Curie temperature of several ferromagnetic elements. It then discusses the concept of magnetic domains and illustrates how flux...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170614
EISBN: 978-1-62708-297-6
...Abstract Abstract This article discusses the compositions, structures, and properties of the most common grades of soft magnetic metals and permanent magnet alloys. It explains how alloying additions and impurities affect the magnetic properties of these materials, which include commercially...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860203
EISBN: 978-1-62708-348-5
...Abstract Abstract This chapter provides a view of magnetism in materials used at low temperatures. The discussion covers the concepts, definitions, and systems of units that are unique to the study of magnetic properties. The chapter provides a description of some of the techniques and devices...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000131
EISBN: 978-1-62708-312-6
...Abstract Abstract This chapter discusses the advantages of using powder metallurgy to produce magnetic materials, particularly its ability to control chemistry and near-net shape. It also explains how process parameters and powder characteristics influence the physical and magnetic properties...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860515
EISBN: 978-1-62708-348-5
...Abstract Abstract This chapter discusses three measurements parameters: temperature, strain, and magnetic field strength. It stresses the measurement of temperature because it is the primary variable in nearly all low-temperature material properties. The chapter contains information on methods...
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Published: 01 April 2013
Fig. 9 Magnetized bars showing directions of magnetic field. (a) Circular. (b) Longitudinal. Source: Ref 10 More
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Published: 01 April 2013
Fig. 3 (a) Horseshoe magnet with a bar of magnetic material across poles forms a closed, ring like assembly, which will not attract magnetic particles. (b) Ring like magnet assembly with an air gap, to which magnetic particles are attracted. Source: Ref 2 More
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Published: 01 April 2013
Fig. 4 Leakage fields between two pieces of a broken bar magnet (a) with magnet pieces apart, and (b) with magnet pieces together (simulating a flaw). (c) Leakage field at a crack in a bar magnet. Source: Ref 2 More
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Published: 01 April 2013
Fig. 5 Magnetized bars showing directions of magnetic field: (a) Circular. (b) Longitudinal. Source: Ref 2 More
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Published: 01 April 2013
Fig. 12 Current and magnetic field distribution in a ring being magnetized with a head shot. Because regions at contact points are not magnetized, two operations are required for full coverage. With use of the induced current method, parts of this shape can be completely magnetized in one More
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Published: 01 June 1988
Fig. 2.3 Effects of (a) nonmagnetic and (b) magnetic bars on the field of magnetic induction (i.e., magnetic flux) within a solenoid coil carrying an electric current. From C. A. Tudbury, Basics of Induction Heating , Vol 1, John F. Rider, Inc., New York, 1960 ( Ref 2 ) More
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Published: 01 August 2013
Fig. 5.8 A hard magnetic material has a much greater hysteresis than a soft magnetic material. The differences are much greater than shown in this figure. Source: Ref 5.2 More
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Published: 01 December 2008
Fig. 2.16 The mechanism of magnetization and the mechanism of magnetic transition White arrows indicate spontaneous magnetization. Black arrows indicate magnetic spins of atoms. (a) The magnetization curve. (b) The disordering of magnetic spins More
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Published: 01 June 1983
Figure 6.1 (a) Diamagnetic alignment of atomic magnetic moments. (b) Magnetization vs. field for a diamagnet. (c) Susceptibility vs. temperature for a diamagnet. More
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Published: 01 June 1983
Figure 6.3 (a) Paramagnetic alignment of atomic magnetic moments. (b) Magnetization vs. field for a paramagnet. (c) Susceptibility and reciprocal susceptibility vs. temperature for a paramagnet. More
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Published: 01 June 1983
Figure 6.5 (a) Ferromagnetic alignment of atomic magnetic moments. (b) Magnetization vs. temperature showing saturation magnetization, M s . (c) Saturation magnetization vs. temperature below the Curie temperature, T C (d) Susceptibility and reciprocal susceptibility vs. temperature above More
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Published: 01 June 1983
Figure 6.23 The magnetization of several weakly magnetic alloys vs. applied field as measured by Efferson and Leonard (1967) . The dashed lines show the limiting permeability values. More
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Published: 01 December 1995
Fig. 27-25 Magnetization curves for higher strength magnetically soft cast steels ( 21 ). The composition and heat treatment of these steels are listed in Table 27-20 . More
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Published: 01 December 1995
Fig. 27-26 Magnetization curves for higher strength magnetically soft cast steels ( 21 ). The composition and heat treatment of these steels are listed in Table 27-20 . More
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Published: 01 December 1995
Fig. 27-27 Magnetization curves for higher strength magnetically soft cast steels ( 21 ). The composition and heat treatment of these steels are listed in Table 27-20 . More