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permanent magnetic materials

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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...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003154
EISBN: 978-1-62708-199-3
...Nominal compositions, Curie temperatures, and magnetic orientations of selected permanent magnet materials Table 1 Nominal compositions, Curie temperatures, and magnetic orientations of selected permanent magnet materials Designation Nominal composition Approximate Curie temperature...
Book Chapter

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...
Series: 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...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003082
EISBN: 978-1-62708-199-3
...Abstract 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...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006057
EISBN: 978-1-62708-175-7
... form because of “hot shortness” but are processed effectively by PM methods for use in soft magnetic applications. Powder metallurgy is also used for permanent magnetic materials based on combinations of neodymium, iron, and boron (introduced in 1983) rare-earth cobalt magnets and ferrite magnets...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003788
EISBN: 978-1-62708-177-1
.... The article also illustrates the microstructure of different types of soft magnetic material and permanent magnets. bitter technique domain imaging Faraday method Lorentz transmission electron microscopy magnetic force microscopy magnetic materials magnetism magneto-optical Kerr method materials...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001089
EISBN: 978-1-62708-162-7
... that follow concerning the physical and chemical properties of the rare earths are based on research-grade materials. The last section of this article on applications is concerned with commercial-grade material. In some commercial applications, such as permanent magnets, impurities are helpful because...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005445
EISBN: 978-1-62708-196-2
... 72Mn-18Cu-10Ni 1.5 112.2 67Ni-30Cu-1.4Fe-1Mn 3.5 56.52 75Fe-22Ni-3Cr 12 15.79 66.5Fe-22Ni-8.5Cr 3.3 58.18 Permanent magnet materials Carbon steel (0.65% C) 9.5 18 Carbon steel (1% C) 8 20 Chromium steel (3.5% Cr) 6.1 29 Tungsten steel (6% W) 6 30 Cobalt...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003148
EISBN: 978-1-62708-199-3
.... For soft magnetic materials, cobalt is alloyed with iron (49Co-49Fe-2V and Fe-27Co-0.6Cr). The iron-cobalt alloys exhibit a high positive magnetostrictive coefficient, making them useful in transducers (sonar) and in extremely accurate positioning devices. In permanent magnets, cobalt increases...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003732
EISBN: 978-1-62708-177-1
..., producing uniform, fine-scale, two-phase mixtures that can enhance the physical and mechanical properties of commercial alloys. Spinodal decomposition has been particularly useful in the production of permanent magnet materials, because the morphologies favor high coercivities. The structure can...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001073
EISBN: 978-1-62708-162-7
... ferromagnetic, provides resistance to demagnetization in several groups of permanent magnet materials. These include the aluminum-nickel-cobalt alloys (in which cobalt ranges from about 5 to 35 wt%), the iron-cobalt alloys (approximately 5 to 12 wt%), and the cobalt rare-earth intermetallics (which have some...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005241
EISBN: 978-1-62708-187-0
... of foundry molds. inorganic binders casting magnetic molding molding plaster-mold casting clay organic resins shell molding ceramic-mold casting rammed graphite molding CASTING can be done with either expendable molds for one-time use or permanent molds for reuse many times. Both...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001093
EISBN: 978-1-62708-162-7
... are characterized by retaining a large amount of residual magnetism after exposure to a strong magnetic field. These materials typically have coercive force, H c , values of several hundred to several thousand oersteds (Oe) and are considered to be permanent magnets. The coercive force is a measure...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006458
EISBN: 978-1-62708-190-0
... , 22 , 23 ) and for magnetic materials ( Ref 12 , 13 , 20 , 22 , 23 , 24 , 25 ). In particular, many applications of PETs for UNDE can follow detailed procedures that are outlined rather completely in various engineering procedures and the published literature. Also, an Internet search...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002475
EISBN: 978-1-62708-194-8
...) are directly involved in electronic circuit embodiments by providing interconnections. They also provide mechanical support, environmental protection, and facilitate heat transfer ( Ref 5 ). Magnetic materials play a key role in permanent storage and retrieval of information. Furthermore, their use...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005544
EISBN: 978-1-62708-197-9
... involving inductive heating. It uses the boundary-element method (BEM), finite-element method (FEM), or hybrid method (BEM and FEM combination) solver. The software simulates static and phasor analysis modes and nonlinear, permanent magnet and lossy magnetic materials based on boundary conditions...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003062
EISBN: 978-1-62708-200-6
...Abstract Abstract Ceramic materials serve important insulative, capacitive, conductive, resistive, sensor, electrooptic, and magnetic functions in a wide variety of electrical and electronic circuitry. This article focuses on various applications of advanced ceramics in both electric power...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003232
EISBN: 978-1-62708-199-3
...Abstract Abstract Magnetic-particle inspection is a nondestructive testing technique used to locate surface and subsurface discontinuities in ferromagnetic materials. Beginning with an overview of the applications, advantages, and limitations of magnetic-particle inspection, this article...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003232
EISBN: 978-1-62708-199-3
... Abstract Magnetic-particle inspection is a nondestructive testing technique used to locate surface and subsurface discontinuities in ferromagnetic materials. Beginning with an overview of the applications, advantages, and limitations of magnetic-particle inspection, this article provides...