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rare earth-cobalt magnets

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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
... possible in metal injection molding parts. The article also discusses ferromagnetic cores used in alternating current applications and some permanent magnets, such as rare earth-cobalt magnets and neodymium-iron-boron (neo) magnets. ferritic stainless steel ferromagnetic cores hysteresis loss...
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
... 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. magnet designations magnetic characteristics magnetic properties mechanical properties...
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
... This section briefly reviews the use of rare earth elements in magnetic materials. Additional information on magnetic materials containing earth elements is given in the article “Permanent Magnet Materials” in this Volume. Samarium-Cobalt Permanent Magnets Although the magnetic properties of the rare...
Image
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
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003154
EISBN: 978-1-62708-199-3
... containing 7 to 10% Al, 15 to 19% Ni, 13 to 35% Co, 3 to 4% Cu, with an optional 1 to 5% Ti), Cunife (60Cu-20Ni-20Fe), iron-cobalt containing vanadium or chromium, platinum-cobalt, hard ferrites (SrO-Fe 2 O 3 or BaO-6Fe 2 O 3 ), cobalt-rare earth alloys (SmCo 5 or SM 2 CO 17 ), and neodymium-iron-boron...
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
...), Nd-Fe-B alloys, cobalt-rare earth alloys, Cr-Co-Fe, and Pt-Co alloys. In the absence of an applied magnetic field, both hard and soft magnetic materials consist of multiple domains. Each domain consists of atoms with magnetic moments in a common direction, differing from the direction...
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
... to 35 wt%), the iron-cobalt alloys (approximately 5 to 12 wt%), and the cobalt rare-earth intermetallics (which have some of the highest magnetic properties of all known materials). Further information is contained in the article “Permanent Magnet Materials” in this Volume. Radioactive Source...
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
..., and rare earth metals is also listed. density aluminum copper iron lead magnesium nickel tin titanium zinc rare earth metals Density of metals and alloys Table 1 Density of metals and alloys Metal or alloy Density g/cm 3 lb/in. 3 Aluminum and aluminum alloys...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003148
EISBN: 978-1-62708-199-3
... 23 wt% Co, and powder metallurgy (P/M) materials based on combinations of cobalt and rare earth metals such as samarium (SmCo 5 and Sm 2 Co 17 ). More detailed information on both soft and permanent magnet materials can be found in the Section “Special-Purpose Materials” in this Handbook...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003153
EISBN: 978-1-62708-199-3
... memories. (Di is the symbol for didymium, a mixture of the rare earth elements praseodymium and neodymium.) Lithium ferrite is higher in Curie temperature and saturation magnetization, but lower in switching speed, than Mn-Mg-Zn and Mn-Mg-Di ferrites. Linear ferrites comprise manganese-zinc and nickel-zinc...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001751
EISBN: 978-1-62708-178-8
... are the classical ferromagnetic metals iron, nickel, and cobalt and their alloys in single crystal and polycrystalline form. The rare earths (except gadolinium) are difficult to study using FMR because of their enormous anisotropy fields. However, remarkable developments have taken place over the past ten years...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005887
EISBN: 978-1-62708-167-2
... to deform. Hence, magnesium alloys usually are fabricated by casting or hot working (between 200 and 350 °C, or 390 and 660 °F). As in the case of aluminum, magnesium alloys are cast or wrought, and some of them are heat treatable. Major alloying additions are aluminum, zinc, manganese, and rare earths...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001739
EISBN: 978-1-62708-178-8
..., beryllium, tin, indium, niobium, tantalum, titanium, zirconium, hafnium, uranium, and the rare earths. Sodium hydroxide precipitates a slightly different array; manganese, nickel, copper, and cobalt must be added to the above list, and due to their amphoteric character, aluminum, gallium, and beryllium must...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006052
EISBN: 978-1-62708-175-7
.... H. , 1989 , p 185 – 188 6. Sherman A.J. , Doud B. , and Hardy D. , Powder Properties of Nanocrystalline, Fluidized Bed Reduced Tungsten, Tungsten Carbide and Tungsten Rare-Earth Alloy Powders , Proceedings of the International Conference on Tungsten, Refractory and Hard...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003066
EISBN: 978-1-62708-200-6
... are measured in minutes for small batches. These melts are quite fluid at the liquidus and therefore are marginal glass formers compared to the traditional silicate glasses. These materials include such diverse systems as the aluminates, galliates, and rare-earth aluminosilicates. The glass transformation...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005896
EISBN: 978-1-62708-167-2
...: for example, ferrites and compounds of iron oxide with oxides of the rare earth elements Antiferromagnetic materials: for example, MnO, FeO, NiO Metamagnetic materials: certain substances that depending on the strength of magnetic field and temperature can be either ferromagnetic...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003771
EISBN: 978-1-62708-177-1
... significantly reduced fabricability. In addition to chromium, small amounts of elements such as manganese, silicon, and rare-earth elements (e.g., lanthanum) can be used to enhance the formation of protective oxide scales at elevated temperatures. Strengthening of cobalt-base alloys is accomplished by solid...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006267
EISBN: 978-1-62708-169-6
...-temperature capability. The use of tungsten rather than molybdenum, moderate nickel contents, lower carbon contents, and rare earth additions typify current cobalt-base superalloys. For many years, the predominant user of heat-resistant alloys was the gas turbine industry. In the case of aircraft gas turbine...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001117
EISBN: 978-1-62708-162-7
... Compressive Properties Compressive strength: with B 2 O 3 present, up to 0.5 GPa Hardness 99.9% crystalline: 3300 HK (with 100 g load), 9.3 moh Elastic Modulus Tension: amorphous, 440 GPa Cadmium (Cd) Cadmium is a relatively rare metal that is present in the crust of the earth...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006018
EISBN: 978-1-62708-175-7
... of caffeine Iron  Synthesis of hydrocarbons Iron Pyrotechnics Aluminum, graphite, iron, magnesium Radio and television  Cores Iron, MolyPermalloy  Getters (television tubes) Barium, nickel  Permanent magnets Iron, nickel, cobalt, aluminum, barium, ferrites, rare earths  Printed...