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permanent magnets

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Published: 30 September 2015
Fig. 17 Representative demagnetization curves for permanent magnets (energy product, BH , contour lines and magnetic induction, B , curve) in the second quadrant of a hysteresis loop. Source: Ref 17 More
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Published: 30 September 2015
Fig. 18 Schematic of processing sequence for permanent magnets. Source: Ref 21 More
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001094
EISBN: 978-1-62708-162-7
... Abstract This article discusses the chief magnetic characteristics of permanent magnet materials. It provides a detailed description on nominal compositions; principal magnet designations; magnetic, physical, and mechanical properties; selection criteria; and applications of the permanent...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003154
EISBN: 978-1-62708-199-3
... Abstract Premanent magnet refers to solid materials that have sufficiently high resistance to demagnetizing fields and sufficiently high magnetic flux output to provide useful and stable magnetic fields. Permanent magnet materials include a variety of alloys, intermetallics, and ceramics...
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Published: 01 January 1990
Fig. 6 Demagnetization curves for obsolete permanent magnet materials. (a) Magnet steels. (b) Intermediate alloys. Among intermediate alloys, only Cunife is still used. More
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Published: 01 January 1990
Fig. 7(a) Magnetization curves for anisotropic cast Alnico permanent magnet materials More
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Published: 01 January 1990
Fig. 7(b) Magnetization curves for isotropic cast Alnico permanent magnet materials More
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Published: 01 January 1990
Fig. 7(c) Magnetization curves for sintered Alnico permanent magnet materials More
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Published: 01 January 1990
Fig. 15 Hysteresis loss versus magnetizing force for various permanent magnet materials. Data points indicate maximum efficiency, 1, P-6 alloy; 2, cast Alnico 5; 3, cast Alnico 6; 4, Vicalloy; 5, 17% Co steel; 6, 36% Co steel; 7, cast Alnico 2; 8, 3 1 2 % Cr steel More
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Published: 01 December 1998
Fig. 6 Magnetization curves for anisotropic cast Alnico permanent magnet materials More
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Published: 01 January 1986
Fig. 33 FIM images of an Fe-Cr-Co permanent-magnet alloy showing the progress of the spinodal decomposition reaction. Aged at 560 °C (1040 °F) for (a) 10 min, (b) 1 h, (c) 8 h, and (d) 100 h. Source: Ref 11 More
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Published: 01 January 1990
Fig. 15 Levitation of a high-field permanent magnet above a high- T c superconductor at liquid nitrogen temperatures. The exclusion of magnetic flux by the superconductor due to flux pinning defects creates a magnetic pressure between the magnet and the superconductor that opposes More
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Published: 01 January 1990
Fig. 1 Major hysteresis loop for a permanent magnet material. B i (sat) is the saturation induction More
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Published: 01 January 1990
Fig. 2 Normal demagnetization curve for a permanent magnet material More
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Published: 01 January 1990
Fig. 3 Typical energy-product curve for a permanent magnet material More
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Published: 01 January 1990
Fig. 8 Demagnetization curves for permanent magnet materials. (a) Platinum-cobalt alloys. (b) Cobalt and rare-earth alloys. (c) Strontium-ferrite alloys. (d) Iron-chromium-cobalt alloys More
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Published: 01 January 1990
Fig. 14 Breakdown of global permanent magnet market in terms of monetary value (a) and product weight (b). Source: Ref 2 More
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Published: 01 January 1990
Fig. 17 Irreversible changes in H c and H ci for various permanent magnet materials More
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Published: 01 December 1998
Fig. 1 Major hysteresis loop for a permanent magnet material. B i (sat) is the saturation induction More
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Published: 01 December 1998
Fig. 2 Normal demagnetization curve for a permanent magnet material More