Stone Crushers, Rock Crushers, Screening and Crushing Machines

MGB series Hopper Discharge Feeder

Vibrating feeder is also called vibrating feeder. In the production process,...

MZA/K Series Circular Vibrating Screen

MZA / K series vibrating screen is a new round vibrating screen product base...

MF Series Fixed Shaft Circular Vibrating Screen

MF Series vibrating screen is a new round vibrating screen product based on ...

MC Series Single-Cylinder Hydraulic Cone Crusher

MC series single cylinder hydraulic cone crusher is developed from European ...

MJ Series Jaw Crusher

MJ series jaw crusher is mainly used as coarse crusher. It is made of advanc...

ML Series Vertical Shaft Impact Crusher

Ml series impact sand making machine is a brand new structure of ML impact s...

MS Series Triaxial Horizontal Screen

MS series three-axis elliptical vibrating screen is an international level v...

MGD Series Vibrating Feeder

Vibrating feeder is also called vibrating feeder. In the production process,...

High performance anisotropic magnetic powder for dry pr

  • Sintered (Pr,Nd)-Fe-B permanent magnets with of 520.kJ/m³

    room temperature again and the magnetic polarization was measured with the same pair of Helmholtz coils without magnetizing the samples. This cycle was repeated 3 times. Anisotropic sintered (NdxPr1-x)2Fe14B permanent magnets with different Pr concentrations were prepared following the conventional powder metallurgical processing technique.

  • The microstructure and magnetic properties of anisotropic

    Feb 24, 2014· In recent years, rare-earth-transition metal (RE-TM) nano- and submicro-particles have drawn considerable interest due to their potential applications in high-performance nanocomposite magnets, bonded magnets, high-density magnetic recording media and ferrofluids [14].Recently, surfactant-assisted ball milling (SABM) technology has been widely used in the synthesis of anisotropic

  • Final Technical Report - DTIC

    High performance bulk anisotropic nanograin composite Nd2Fe14B/Fe and Nd2Fe14B/Fe-Co magnets were successfully synthesized using hot compacting blended Nd-Fe-B and Fe-Co powders or coated ND-Fe-B powders followed by a subsequent hot deformation. Using both techniques, (BH)max could reach 45-55 MGOe. In addition, bulk anisotropic

  • Magnetically anisotropic bond magnet, magnetic powder for

    May 01, 1990· Magnetically anisotropic bond magnet, magnetic powder for the magnet and manufacturing method of the powder Abstract. Magnetically anisotripic powder and resin-bonded magnets made therefrom have "flattened" crystal grains of an R-TM-B-M system alloy with preferably (c)/(a) greater than 2, where (c) is the grain size perpendicular to the C-axis and (a) the grain size

  • Design of Polar Anisotropic Sintered NdFeB Ring-Type

    Jan 01, 2006· A Four polar anisotropic sintered NdFeB PM with high surface flux density was developed using dry pressing process with pulse magnetizing fields. and of the way of pre-magnetized powder for the high performance polar anisotropic sintered NdFeB PMs were studied. It can be seen that magnets produced by pre-magnetized powder process shows

  • On the synthesis and microstructure analysis of high

    Dec 05, 2016· Highly anisotropic MnBi powder with over 90 wt% low-temperature phase can be prepared using conventional arc-melting and 2 hour-low energy ball milling (BM) followed by magnetic separation. After proper alignment, the purified Mn 55 Bi 45 (Mn 45 Bi 55) powder show remarkable magnetic properties: mass remanence of 71(65) Am 2 /kg and coercivity of 1.23(1.18) T at 300 K.

  • Recent Improvements of Ferrite Magnets

    made a remarkable improvement in the degree of orientation for submicron particles as shown in fig.3, thus achieving high performance, anisotropic sintered magnets, with Br-0.44T (4.4kG) and HcJ=320kA/m (4.0kOe) [7]. Table 1: Change of specific surface area (SBET), as and HcJ of dry vibration-pulverized powder. Line half-width (L.H.W.) was

  • Magnetic Powders Aegis Depot

    The magnetic ferrite powder is suitable for producing different grades of hard ferrite magnets by wet pressing or dry pressing production process. According to the needs of clients, we could supply the magnetic ferrite powders in different granularity, the magnetic ferrite powder can be classified as isotropic magnetic ferrite powder and

  • Dynamical magnetic behavior of anisotropic spinel

    Jan 12, 2021· Our Ni 0.5 Zn 0.5 Fe 2 O 4 powder/polymer composite sheet thus exhibits high performance at GHz frequencies, and should be applicable e.g. as an anisotropic electromagnetic wave-interference material.

  • Phys. Rev. Materials 5, 014415 (2021) - Denitrogenation

    Jan 29, 2021· $\mat{Th}{\mat{Mn}}_{12}$ nitrides are good candidates for high performance permanent magnets. However, one of the remaining challenges is to transfer the good properties of the powder into a useful bulk magnet. Thus, understanding the denitrogenation process of this phase is of key importance. In this study, we investigate the magnetic and structural stability of the

  • The microstructure and magnetic properties of anisotropic

    The microstructure and magnetic properties of anisotropic polycrystalline Nd 2Fe 14B nanoflakes prepared by surfactant-assisted cryomilling Lidong Liu1,2, J Ping Liu3, Jian Zhang1,2, Weixing Xia1,2, Juan Du1,2, Aru Yan1,2, Wei Li4 and Zhaohui Guo4 1Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material technology and Engineering, Chinese Academy of Science,

  • magnetic powders, magnetic powders Suppliers and

    04821607 magnetic powder with rare elements Pr Wholesale Custom Made Ndfeb Neodymium Magnet Powder. high performance 10 micro making core Ferrite magnetic powder. China Anisotropic NdFeB Powder Manufacture . US $1.00-$30.00 / Kilogram

  • Research and Development of Interstitial Compounds - IEEE

    Jun 05, 2015· The (BH)max of SmFeN magnetic powders is up to 41 MGOe, which is favorable for fabricating high-performance injection magnets and extrusion magnets. On the other hand, it was found that cone or planar anisotropic R 2 Fe 17 N x (R = Ce, Pr, Nd) and paraffin composites can improve the Snoek limit and exhibit a high microwave reflection loss of up

  • Anisotropic composite polymer for high magnetic force in

    Oct 27, 2017· Anisotropic carbonyl ironpolydimethylsiloxane (PDMS) composites were developed and implemented in microfluidic devices to serve as magnetic flux concentrators. These original materials provide technological solutions for heterogeneous integration with PDMS. Besides microfabrication advantages, they offer interesting modular magnetic properties. Applying an external magnetic field

  • Anisotropic magnet, Anisotropic permanent magnet - All

    high-performance (1) radial (1) radially magnetized (1) with R chamfer (1) Submit. Applications. ground to a fine powder with hexagonal crystals. In addition to dry types, a wet anisotropic Compare this product Remove from comparison tool. NdFeB permanent magnet.

  • Research and Development of Interstitial Compounds

    for mass production of high-performance anisotropic magnetic powders Nd(Fe, M) 12 NandSm 2 Fe 17 N 3 has been successfully developed using updated powder metallurgy techniques.

  • HDDR Process and Nd-Fe-B Anisotropic Magnet Powder

    Magnetic properties and microstructures of Nd-Fe-B magnet powders produced by two different hydrogen treatments were studied. One of the hydrogen treatment is a selective hydrogen decrepitation (HD) process and the other is the hydrogenation decomposition desorption recombination (HDDR) process, which is a new production process for high-performance Nd-Fe-B magnet powder.

  • Nanoengineered High-Performance Hexaferrite Magnets by

    Magnetic materials are ubiquitous in electric devices and motors making them indispensable for modern-day society. The hexaferrites currently constitute the most widely used permanent magnets (PMs), accounting for 85% (by weight) of the global sales of PMs. This work presents a complete bottom-up nanostructuring protocol for preparation of magnetically aligned, high-performance hexaferrite PMs

  • Printable anisotropic magnetoresistance sensors for highly

    Mar 25, 2021· Printed electronics are attractive due to their low-cost and large-area processing features, which have been successfully extended to magnetoresistive sensors and devices. Here, we introduce and characterize a new kind of magnetoresistive paste based on the anisotropic magnetoresistive (AMR) effect. The paste is a composite of 100-nm-thick permalloy/tantalum flakes embedded in an

  • US20030047240A1 - Manufacturing method of an anisotropic

    US20030047240A1 US10/228,096 US22809602A US2003047240A1 US 20030047240 A1 US20030047240 A1 US 20030047240A1 US 22809602 A US22809602 A US 22809602A US 2003047240 A1 US2003047240 A

  • Magnetically anisotropic sintered magnets - HIROSAWA SATOSHI

    In this invention, enhancement of the coercive force of the FeB-R based magnetic anisotropic sintered magnets was studied by increasing a content of B and, in addition, containing into material a small amount of such as Al, Si, Cu, Cr, Ni, and Mn effective of enhancing the coercive force and excluding from the material harmful impurities such as P, S, and Sb.

  • Magnetic Powder - an overview ScienceDirect Topics

    Isotropic or anisotropic powders: anisotropic powders lead to a better orientation of the magnetic field.-Excellent cost/performance ratio.-High thermal coefficients of residual induction and intrinsic coercive force limiting the service temperature.-Low electrical resistance.

  • High Performance Permanent Magnets for Advanced

    Continued to produce magnets with good magnetic performance and electrical resistivity increased by 30% able to operate at 240. o. C. Laminated anisotropic magnets consisting of Sm(Co,Fe,Cu,Zr) z. and CaF. 2. layers that can electrically insulate the magnet layers, were produced by a one-step sintering.

  • Pure Iron and Low Carbon Steels - Soft Magnetic P/M Materials

    Pure iron powders are susceptible to nitrogen aging i.e. the coercive force increases with time when the magnetic device is exposed to elevated temperatures for prolonged periods. As a result, the end user can find the magnetic performance of the part deteriorating with time. The key for preventing nitrogen aging is the sintering

  • Superior Mechanical and Magnetic Performance of Highly

    Dec 03, 2020· Superior Mechanical and Magnetic Performance of Highly Anisotropic SendustFlake Composites Freeze Cast in a Uniform Magnetic Field the manufacture in the bulk of highperformance flakebased magnetic composites with a highly aligned, nacrelike structure remains challenging. Commercially available powder cores are composed of

  • Magnetic powder,Bonded Ferrite Powder,Strontium ferrite

    Magnetic Powder > Electromagnetic wave powder absorbents. Electromagnetic wave powder absorbents. DX magnet has developed a series of electromagnetic wave absorbents, flexible rubber electromagnetic wave absorbers with high performance that can be widely applied in various fields, such as stealth technique, electrical communication, electromagnetic compatibility (EMC), and so on.

  • Effect of hydrogenation disproportionation conditions on

    Feb 03, 2017· The magnetic anisotropy was decreased with increasing t HD. In the d-HDDR powders with higher magnetic anisotropy, fine (200600 nm) and coarse (6001200 nm) Nd 2 Fe 14 B grains were observed. The coarse Nd 2 Fe 14 B grains showed highly crystallographic alignment of the c-axis than fine Nd 2 Fe 14 B grains.

  • Flexible Composite Magnetic Sheets & Strips Flexmag Sheets

    Arnold Magnetic Technologies is a leading global manufacturer of high performance magnets, magnetic assemblies and precision thin metals. this anisotropic magnet combines both strength and stability for precise control of numerous applications. resins with magnetic powders and extruding the compound through precisely controlled dies

  • Magnetic Particle Accessories & Consumables - Magnetic

    These dry method powders are acceptable for use on high temperature surfaces up to 800°F (427°C) except for Red being 600°F (315°C). Although not recommended (depending on the magnetic characteristics of the inspected component) indications may

  • Magnet Man - Cool Experiments with Magnets

    performance jumped. rvsulting in maximum energy prod- uct (a magnet performance indicator: expressed as ) of 128 192 MGOe) for Smco and 256 (32 MGOe) for The coercive force attained also was as high as k,vm Meanwhile, research on the magnetic properties of intermetalic compounds Of rare earth metals and iron

  • magnet fb summary en - TDK

    Dry molding process Material group High-power La-Co-free materials High-power thin-shaped molding materials High-performance ferrite magnet for outer rotor FB12 FB9 FB6 Features of TDK ferrite magnets A oxide magnet made by sintering, using advanced fine powder control technologies based on a powder metallurgy method.

  • Vol. 12 Evolution of ferrite magnets by combination of

    Ferrite powder moves more easily in water, so it is well aligned in the direction of an external magnetic field by making it into slurry. Anisotropic Sr-ferrite magnets made by the wet method are superior to magnet steels, such as KS steel and MK steel, and have reached levels of

  • Chongqing Seatrend Technology & Development Co., Ltd

    Anisotropic hard strontium ferrite powders FOB Price: USD $10 / Kilogram Min. Order: 1 Kilograms; High performance anisotropic magnetic powder for dry pressing barium ferrite powders FOB Price: USD $10 / Kilogram Min. Order: 1 Kilograms; High quality anisotropic magnetic ferrite powder mold making powder FOB Price: USD $10 / Kilogram Min. Order

  • Magnetic properties of anisotropic Sm-Fe-N bulk magnets

    Abstract SmFeN powders were consolidated into bulk materials by the spark plasma sintering (SPS) method. Although partial decomposition of the Sm 2 Fe 17 N 3 phase was noted in the magnets, the decomposition was reduced by the addition of a small amount of Zn powder to the SmFeN powder. The anisotropic SmFeN magnet obtained from a mixture of SmFeN and Zn powders

  • Advanced Hard and Soft Magnetic Materials

    Microstructural and Magnetic Improvements in Tube-Cast Pr-Fe-B-Cu Alloys Via Heat Treatments and Rapid Upset Forging 69 G.P. Hatch, AJ. Williams, I.R. and Harris High-Performance, Llght-Weight Thermoplastic/Rare Earth Alloy Magnets 75 J. Xiao and J.U. Otaigbe PART II: INTRINSIC PROPERTIES OF PERMANENT MAGNETIC MATERIALS

  • High performance Sm-Fe-N magnets prepared by compression

    The magnetic properties of the Sm-Fe-N anisotropic magnets were dependent on the magnetic alignment of the Sm-Fe-N powder before implementation of the compression shearing method. A Sm-Fe-N anisotropic magnet with the magnetic alignment produced under an applied field of 1.6 MA/m exhibited a maximum energy product of 161 kJ/m3 with a high

  • Magnetic Particle Inspection Consumables Magnaflux

    Improve your magnetic particle inspection with Magnaflux fluorescent powders, visible and colored magnetic particles, carrier liquid, contrast aid paint and other products for mag particle testing. Find out more about Magnafluxs reliable and tested magnetic particle products for wet-method and dry-method MPI and MT magnetic particle testing.

  • Magnetic characteristics|Magnet sales -Magna Tokyo

    This newcomer to the magnet industry with its high performance of both residual flux density and coercive force superior to all other magnets, allows for its very compact and thin design. Anisotropic by Dry Anisotropic by Wet; BaO6Fe 2 O 3: SrO6Fe 2 O 3: SrO6Fe 2 O 3: Molding Process Dry Powder: Dry Powder in Magnetic Field