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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...
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 magnet materials, which include magnet steels, magnet alloys, alnico alloys, platinum-cobalt alloys, cobalt and rare-earth alloys, hard ferrites, iron-chromium-cobalt alloys, and neodymium-iron-boron alloys.
Book Chapter
Permanent Magnet Materials
Available to PurchaseSeries: 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...
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. This article discusses the composition, properties, and applications of permanent magnetic materials, such as hysteresis alloys used in motors. It primarily focuses on the stability of magnetic fields that influences reversible and irreversible losses in magnetization with time, and the choice of magnet material, component shape and magnetic circuit arrangement.
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Demagnetization curves for obsolete permanent magnet materials. (a) Magnet ...
Available to Purchase
in Permanent Magnet Materials
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
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.
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Magnetization curves for anisotropic cast Alnico permanent magnet materials...
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in Permanent Magnet Materials
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
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in Permanent Magnet Materials
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Image
in Permanent Magnet Materials
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Image
Magnetization curves for anisotropic cast Alnico permanent magnet materials...
Available to PurchasePublished: 01 December 1998
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Published: 30 September 2015
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in Permanent Magnet Materials
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 1 Major hysteresis loop for a permanent magnet material. B i (sat) is the saturation induction
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in Permanent Magnet Materials
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
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in Permanent Magnet Materials
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Image
Demagnetization curves for permanent magnet materials. (a) Platinum-cobalt ...
Available to Purchase
in Permanent Magnet Materials
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
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
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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
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Published: 01 December 1998
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Published: 01 December 1998
Book Chapter
Intermediate Phases
Available to PurchaseBook: Alloy Phase Diagrams
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006229
EISBN: 978-1-62708-163-4
... decomposition has been particularly useful in the production of permanent magnet materials, because the morphologies favor high magnetic coercivities. It also describes the theory of spinodal decomposition with a simple binary phase diagram. alloy phases binary phase diagram chemical composition...
Abstract
In some phase diagrams, the appearance of several reactions is the result of the presence of intermediate phases. These are phases whose chemical compositions are intermediate between two pure metals, and whose crystalline structures are different from those of the pure metals. This article describes the order-disorder transformation that typically occurs on cooling from a disordered solid solution to an ordered phase. It provides a table that lists selected superlattice structures and alloy phases that order according to each superlattice. The article informs that spinodal decomposition has been particularly useful in the production of permanent magnet materials, because the morphologies favor high magnetic coercivities. It also describes the theory of spinodal decomposition with a simple binary phase diagram.
Book Chapter
Density of Metals and Alloys
Available to PurchaseSeries: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005442
EISBN: 978-1-62708-196-2
... Abstract This article contains a table that lists the density of metals and alloys. It presents information on aluminum, copper, iron, lead, magnesium, nickel, tin, titanium, and zinc, an their respective alloys. Information on wrought alloys, permanent magnet materials, precious metals...
Abstract
This article contains a table that lists the density of metals and alloys. It presents information on aluminum, copper, iron, lead, magnesium, nickel, tin, titanium, and zinc, an their respective alloys. Information on wrought alloys, permanent magnet materials, precious metals, and rare earth metals is also listed.
Book Chapter
Engineering Data for Metals and Alloys
Available to PurchaseSeries: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003082
EISBN: 978-1-62708-199-3
... Abstract This article contains tables that present engineering data for the following metals and their alloys: aluminum, copper, iron, lead, magnesium, nickel, tin, titanium, zinc, precious metals, permanent magnet materials, pure metals, rare earth metals, and actinide metals. Data presented...
Abstract
This article contains tables that present engineering data for the following metals and their alloys: aluminum, copper, iron, lead, magnesium, nickel, tin, titanium, zinc, precious metals, permanent magnet materials, pure metals, rare earth metals, and actinide metals. Data presented include density, linear thermal expansion, thermal conductivity, electrical conductivity, resistivity, and approximate melting temperature. The tables also present approximate equivalent hardness numbers for austenitic steels, nonaustenitic steels, austenitic stainless steel sheet, wrought aluminum products, wrought copper, and cartridge brass. The article lists conversion factors classified according to the quantity/property of interest.
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in Permanent Magnet Materials
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 18 Temperature dependence of saturation magnetization, B is , or remanence B r , for various permanent magnet materials.
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Changes in magnetization with time at room temperature for various permanen...
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in Permanent Magnet Materials
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 22 Changes in magnetization with time at room temperature for various permanent magnet materials. Numbers in parentheses are working points, B / H .
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