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Liming Heavy Industry
Liming Heavy Industry

hard magnetic films of iron cobalt and nickel

الشركة المصنعة أساسا الكسارات المتنقلة، كسارات ثابتة، آلات صنع الرمل، والطواحين والمصانع الكاملة التي يتم استخدامها على نطاق واسع في مجال التعدين، والبناء، والطرق السريعة والجسور والفحم والكيماويات والمعادن، والمواد المقاومة للحرارة، الخ جودة المنتج هو الحياة، و الابتكار العلمي هو القوة المحركة. لي منغ حصلت ISO شهادة نظام الجودة الدولية، شهادة الاتحاد الأوروبي CE وشهادة GOST الروسي. والشركة لديها البحث والتطوير القوي قوة والابتكار.

    • Hard Magnetic Films of Iron, Cobalt, and Nickel:

    2004-7-14  Hard Magnetic Films of Iron, Cobalt, and Nickel Journal of Applied Physics 36 , 972 (1965); https://doi.org/10.1063/1.1714283 D. E. Speliotis , G. Bate , J. K.

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    • Hard and semi-hard magnetic materials based on

    2020-5-25  Cobalt is one of the naturally occurring ferromagnetic metals (iron and nickel being the other two) with a very high Curie temperature (∼1145 °C) owing to the strong exchange interaction among the 3d electrons. It possesses a magnetic moment of 1.7–1.75 μ B per atom, which is comparatively lower than that of iron (2.2 μ B per atom).

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    • Non-Magnetic Films of Iron, Nickel, and Cobalt

    A YEAR and a half ago one of us (Ingersoll and De Vinney, Phys. Rev., 26, 86, 1925) reported the results of some experiments on films of nickel cathodically sputtered in hydrogen at a pressure of 1 mm. or less. These films as produced were entirely nonmagnetic, showing no tractive effects in a strong magnetic field. Upon heating to about 350°C. for a few minutes, however, they become strongly ...

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    • Non-Magnetic Films of Iron, Nickel, and Cobalt

    THE letter by Mr. Hanawalt and Prof. Ingersoll on “Non-Magnetic Films of Iron, Nickel, and Cobalt “ (NATURE, Feb. 12, p. 234) raises a number of interestin questions.

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    • Non-Magnetic Films of Iron, Nickel, and Cobalt Nature

    A YEAR and a half ago one of us (Ingersoll and De Vinney, Phys. Rev., 26, 86, 1925) reported the results of some experiments on films of nickel cathodically sputtered in hydrogen at a pressure of ...

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    • Non-Magnetic Films of Iron, Nickel, and Cobalt -

    1927-2-1  These films as produced were entirely nonmagnetic, showing no tractive effects in a strong magnetic field. Upon heating to about 350°C. for a few minutes, however, they become strongly magnetic. A YEAR and a half ago one of us (Ingersoll and De Vinney, Phys. Rev., 26, 86, 1925) reported the results of some experiments on films of nickel cathodically sputtered in hydrogen at a pressure of

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    • Magnetic Anisotropy of Epitaxial Iron, Nickel, and

    1968-2-1  Measurements were made of the first constant of crystal anisotropy K 1 and K ⊥ = K N-2πJS 2-K1 of the films, Fe, Ni, and Co, epitaxially grown on NaCl, LiF, and MgO crystals. Here K N is the constant of anisotropy perpendicular to the plane of a film, and J S is the saturation magnetization.

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    • 23.5: The Iron Triad: Iron, Cobalt, and Nickel -

    2020-8-25  Cobalt (Co) is a transition metal with an atomic weight of 58.93 and an atomic number of 27, right in between iron and nickel. Cobalt, however, is not as abundant as iron and only makes up of about 0.0020% of the Earth’s crust.

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    • Magnetic Alloys Cobalt Institute

    These alloys contain cobalt and iron with vanadium added to improve ductility. Cobalt based soft magnet alloys have advantages over other soft magnets in that they have a high saturation point, have a good permeability in magnetic fields and have a high Curie Point of 950-990 o C resulting in magnetic properties not being altered under temperatures of 500 o C. Hard Magnets Aluminium-nickel-cobalt

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    • Non-magnetic metals turned into magnets Nature

    2015-8-5  This made the films partially magnetic, across a layer a few nanometres thick next to the buckyballs. When an external field was applied and then removed, some 10% of the induced magnetic

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    • Which Metals Are Magnetic? Metal Supermarkets -

    2015-10-27  The most common metals used for permanent magnets are iron, nickel, cobalt and some alloys of rare earth metals. There are two types of permanent magnets: those from “hard” magnetic materials and those from “soft” magnetic materials. “Hard” magnetic metals tend to stay magnetized over a long period. Common examples are:

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    • Chapter 2 Magnetic Materials and Their Characteristics

    2013-3-16  The magnetic material is the paramount player in the design of magnetic components. ... nickel iron (permalloy), cobalt iron (permendur), amorphous metallic alloys, and ferrites. These also have spin-off material variants, such as moly-permalloy powder, sendust powder, and iron powder cores. ... films in the 1950's. The development of thin film ...

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    • Hard and soft magnetic materials for electromagnetic ...

    2008-5-1  An important aspect of the development of electromagnetic microactuators is the search for suitable materials as well as the development of the respective deposition and patterning processes. Within the Collaborative Research Center 516 “Design and Fabrication of Active Microsystems”, it is the task of the subproject B1 “fabrication of magnetic thin films for electromagnetic ...

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    • The Magnetic and Electrical Properties of Permalloy ...

    2012-3-14  common elemental ferromagnets are the 3d transition elements nickel, cobalt , and iron. Magnetization is defined as the magnetic moment per unit volume and, for iron, cobalt, and nickel, results from the unpaired spin of electrons in the 3d orbital. According to the Pauli Exclusion Principle, no two electrons can occupy

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    • MICROSTRUCTURAL EVALUATION OF

    2020-1-27  Microstructural Evaluation of Nanocrystalline Cobalt-Iron-Nickel Thin Films 713 1. Introduction In recent years, CoFe alloy thin films have been gradually used as soft magnetic materials due to their superior properties in comparison with current Fe–Ni films as write head core

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    • Development and fabrication of magnetic thin films

    2015-10-8  The investigations on the development of suitable materials and their deposition technologies are presented in this paper. In the area of soft magnetic materials, the application of Cobalt-Iron (CoFe) as an alternative to Nickel-Iron (NiFe, Permalloy) was investigated. The benefit of CoFe over NiFe is its greater saturation flux density.

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    • Non-magnetic metals turned into magnets Nature

    2015-8-5  Thin films of copper and manganese made to behave like iron, cobalt or nickel. Download PDF Copper: not a magnetic metal, unless it is combined in thin films with organic molecules.

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    • On the Rotational Coefficient in Nickel and Cobalt

    2020-2-15  IN NICKEL AND COBALT. 327 cobalt is less than that in iron, other things being equal. The magnetic field used was about 9000 (cm.-gr.-sec.), stronger than has yet been used with iron. we now return to the consideration of nickel. The original experiment with this metal had been made with

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    • Development of electroplated magnetic materials for

    2003-9-1  In general, hard magnetic alloys become mechanically brittle and hard as their magnetic hardness increases. Therefore, this reduction in mechanical ductility results also in hard magnetic materials having high residual stress. Fig. 8 shows the residual stress of electrodeposited CoNiP and CoP films plotted as a function of the P content.

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    • A soft magnetic CoNiFe film with high saturation

    1998-4-1  Common high-B s soft magnetic films currently in use are electroplated CoFe-based alloys 1,2,3,4 electroplated CoNiFe alloys 5,6,7 and sputtered Fe-based nanocrystalline 8,9,10,11 and FeN films

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    • Which Metals Are Magnetic? Metal Supermarkets UK

    2015-10-27  The most common metals used for permanent magnets are iron, nickel, cobalt and some alloys of rare earth metals. There are two types of permanent magnets: those from “hard” magnetic materials and those from “soft” magnetic materials. “Hard” magnetic metals tend to stay magnetized over a long period. Common examples are:

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    • THE PREPARATION AND , MAGNETIC PROPERTIES OF ...

    2018-6-22  iron, cobalt and nickel) on the basis of the localised spin model, Van Vleck discussed various possible mechanisms for magnetic anisotropy and pointed out that the pseudo-dipolar and pseudo-quadrupolar inter­ actions between localised spins are important in iron-group metals in which magnetic ions have low spins.

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    • Investigation of the Properties of Magnetic Films ...

    2012-3-14  The purpose of this study is to investigate the magnetic and structural properties of nickel films when deposited on hard and amorphous carbon thin films. We are interested in both magnetic properties related to the giant magnetoresistive effect, such as saturation magnetization and field coercivity and changes in roughness of the films.

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    • MICROSTRUCTURAL EVALUATION OF

    2020-1-27  Microstructural Evaluation of Nanocrystalline Cobalt-Iron-Nickel Thin Films 713 1. Introduction In recent years, CoFe alloy thin films have been gradually used as soft magnetic materials due to their superior properties in comparison with current Fe–Ni films as write head core

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    • Low loss magnetic alloy - McDonnell Douglas

    A magnetic alloy consisting essentially of at least 80 wt % cobalt, at least 10 wt % iron, about 2-5 wt % nickel, and about 0.3-2 wt % impurities including boron and manganese, said alloy being formed from an aqueous electroless plating bath containing the sulfate, chloride or sulfamate salts of these elements and dimethyl amine borane as a ...

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    • 3D Microprinting of Iron Platinum Nanoparticle‐Based ...

    2020-11-13  Magnetic materials are a popular choice to enable mobility due their ability to operate at centimeter-scale distances from the magnetic field source and safely in biological systems. 1, 2 Most studies of microrobots have utilized cobalt, nickel, or neodymium iron

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    • Curie Temperature of Cobalt - The Physics Factbook

    Iron - 770 C Cobalt - 1131 C Nickel - 358 C Gadolinium - 16 C" ... Magnetic Materials vary, they are either ferromagnetic, antiferromagnetic or ferrimagnetic. The pure metal, Cobalt, is a ferromagnetic material. Ferromagnetic materials are made up of domains which align with the magnetic field. Cobalt, is a "hard" metal along with the other ...

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    • Handbook of Magnetic Measurements - Routledge

    While magnetic devices are used in a range of applications, the availability of up-to-date books on magnetic measurements is quite limited. Collecting state-of-the-art knowledge from information scattered throughout the literature, Handbook of Magnetic Measurements covers a wide spectrum of topics pertaining to magnetic measurements. It describes magnetic materials and sensors, the testing of ...

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    • Cobalt processing - The metal and its alloys Britannica

    2020-8-14  Cobalt processing - Cobalt processing - The metal and its alloys: In the production of a so-called cemented carbide, such as tungsten carbide, a briquetted mixture of tungsten carbide and cobalt powder is heated at a temperature above the melting point of cobalt. The latter melts and binds the hard carbides, giving them the toughness and shock resistance needed to make carbides of practical ...

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    • Sara Mills 个人学术档案 - 学术资源

    此“引用引文的出版物数量”计数包含了对学术中以下文章的引用次数。带有 * 标记的引文可能与个人学术档案中的文章 ...

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