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magnetic properties

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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 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 used...
Image
Published: 01 June 2007
Fig. 8.5 Influence of sintered density on magnetic properties of sintered iron. B 20 , magnetic induction at H of 2000 A/m –1 (25.1 Oe); B r , remanence; H c , coercive field; μ max , maximum permeability. (One tesla, T = 10 –4 gauss). Source: Ref 5 More
Image
Published: 01 December 1995
Fig. 27-21 The effect of carbon on the magnetic properties of annealed cast carbon steel ( 19 ) More
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 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 of common...
Image
Published: 01 December 2008
Fig. 2.19 Thermodynamic properties of magnetic materials. (a) The changes in the heat capacity (a1), the enthalpy (a2), and the free energy (a3) of bcc Fe according to magnetic transformation. (b) Unless magnetic transition occurs, A 3 transition will not occur. (c) Is hcp Fe nonmagnetic? See More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240303
EISBN: 978-1-62708-251-8
..., thermal properties, magnetic properties, and optical properties. Some physical properties for a number of metals are given in a table. physical properties electrical properties thermal properties magnetic properties optical properties metals THE PHYSICAL PROPERTIES of a material are those...
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 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 pure...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200404
EISBN: 978-1-62708-354-6
... Abstract This chapter describes the physical properties of steels used for castings. The properties covered include density, modulus of elasticity, Poisson's ratio, shear modulus, thermal expansion, thermal conductivity, specific heat, thermal diffusivity, electrical resistivity, and magnetic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050009
EISBN: 978-1-62708-311-9
... to the relationship between the physical and electrical properties of the part as it is heated through rising temperatures. These functions include the properties of heat transfer such as thermal conductivity and specific heat, and electrical and magnetic properties such as resistivity, permeability, and frequency...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170003
EISBN: 978-1-62708-297-6
... properties Heat resistance Toughness and cold resistance Corrosion/oxidation resistance Hardness and wear resistance Physical properties Elastic modulus Magnetic properties Electrical properties Thermal expansion properties Color Alloying for Mechanical Properties...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420289
EISBN: 978-1-62708-310-2
... and coercivity at room temperature but unfavorable properties at higher temperatures. Because hard magnetic properties are limited by nucleation of severed magnetic domains, the surface and interfaces of grains in the sintered and heat treated material are the controlling factor. Therefore, the effects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060407
EISBN: 978-1-62708-261-7
... of properties: thermal, electrical, magnetic, optical, and the general properties of crystal structure, coefficient of friction, and density. For specialized applications, other properties such as dimensional stability, optical reflectivity, and color may be sufficiently important that they must be considered...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.9781627083485
EISBN: 978-1-62708-348-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... Abstract Liquid penetrant, magnetic particle, and eddy current inspection are used to detect surface flaws. This chapter is a detailed account of the physical principles, process description, equipment requirements, selection criteria, advantages, limitations, and applications of these surface...
Book Chapter

By J. W. Ekin
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860465
EISBN: 978-1-62708-348-5
... Abstract The chapter presents an overview of the properties and operational limits of superconductive materials, as well as techniques used to fabricate practical superconducting wires. It introduces six properties: critical temperature, critical magnetic field, critical current density...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
... magnets for magnetic resonance imaging (MRI) machines, used in medical diagnosis. Rehnium (Re) The properties of rhenium are generally similar to those of molybdenum and tungsten. Its melting temperature of 3180 °C (5756 °F) is the second highest among the refractory metals. Pure rhenium combines...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170587
EISBN: 978-1-62708-297-6
... Effects of Nickel Content on Magnetic Properties of Invar Invar and all similar iron-nickel alloys are ferromagnetic at room temperature and become paramagnetic at higher temperatures. Because additions in nickel contents raise the temperature at which the inherent magnetism of the alloy disappears...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000001
EISBN: 978-1-62708-312-6
... manufacture and the sintering processes for stainless steel parts had been improved sufficiently to qualify for the second large-volume application: antilock brake system sensor rings in cars. This application made increased demands on both corrosion resistance and magnetic properties of (ferritic) stainless...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000009
EISBN: 978-1-62708-313-3
...-expansion superalloys rely on the Invar effect to achieve their low thermal expansion. In these alloys, the contraction associated with the loss of ferromagnetism on heating compensates normal thermal expansion. Thus, the expansion of the alloy is controlled by the changes in the alloy magnetic properties...
Book Chapter

By L. L. Sparks
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860047
EISBN: 978-1-62708-348-5
... to ferromagnets. A more complete discussion of magnetic properties appears in Chapter 6 . The regularity of the spin alignments mentioned above is disrupted by thermal agitation. When the disrupted spin system is Fourier-analyzed, the nonregularities appear as a set of waves. These spin waves may...