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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Advanced Magnetic Materials: An FMD Symposium in Honor of Michael E. McHenry
Presentation Title CC-2: FeCo Alloys to Cobalt Ferrite: Synthesis Considerations, Structural Characterization and Magnetic Properties
Author(s) Dustin M Clifford, Carlos E Castano, Amos J Lu, Everett E Carpenter
On-Site Speaker (Planned) Dustin M Clifford
Abstract Scope FeCo alloy nanomaterial (60:40) has been synthesized in various morphologies including cubes, spheres and high aspect ratio structures using wet-chemical techniques based on the polyol process. As-synthesized soft ferromagnetic FeCo alloys have Ms >220 emu/g and Hc as low as 90 Oe displaying bulk properties. Composite powders containing FeCo and cobalt ferrite have also been generated by varying the chemistry which can be useful for slight adjustment in the overall energy product of the magnet. High aspect ratio structures of the 60:40 FeCo alloy have been created under an external magnetic field. Correlations were observed between factors that most influence Ms (emu/g) of FeCo alloy nanomaterial where premixing time and temperature of metal precursors showed a linear relationship with Ms. In addition, the FeCo alloy has also been synthesized using a continuous flow method. Advantages and restrictions will be discussed in more detail.
Proceedings Inclusion? Planned: None Selected

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Solid-State Approach to Alnico-based Permanent Magnets
A Study of Magnetocaloric Effect and Increased Working Temperature Range in a Heusler Mn50Ni37In10Co3 Unidirectional Crystal
Advanced Magnetic Materials for High Power Density, High Efficiency Electrical Systems
Advanced Soft Magnetic Material Enabled Devices and Components for Emerging Energy Applications
Application of Soft Magnetic Nanocomposites in Power Electronics
Artificial Magnetic Lattices and Their Applications
Caloric Effects in Ni-Mn-Sn Ribbons
Cation Disorder in Nanoparticle and Thin Film Ferrite Systems
CC-1: Direct Measurements of Magnetoelastic Coupling in Shape Memory Alloy
CC-2: FeCo Alloys to Cobalt Ferrite: Synthesis Considerations, Structural Characterization and Magnetic Properties
CC-3: Effect of Processing Route and Alloying Substitutions on the Microstructure and Magnetic Properties of Ferrite Magnets
CC-4: Structural, Microstructure and Magnetic Properties of Superparamagnetic MnxMg1-xFe2O4 Powders Prepared through Co-precipitation Method
CC-5: Tailoring of Magnetic Softness of Fe-Ni Based Magnetic Microwires
CC-6: Synthesis and Characterization of CFO/BCZT Core-shell Structure for Magnetoelectric Application
CC-7: Infiltration Process in Permanent Magnets for Coercivity Enhancement
Co-based Rare Earth Free Permanent Magnet Materials
Comparison of Grain Boundary Diffusion Processes (GBDP) in Nd-Fe-B Permanent Magnets
Current Trends in Giant Magnetoimpedance Materials Research
Design of Nano-crystalline Soft Magnetic Alloys: Electronic Structure
Developing Permanent Magnet Alloys via Rapid Assessment Methodologies
Dy-free High Coercivity Nd-Fe-B Permanent Magnets
Enhanced Powder-processed Alnico Magnets by Thermal Gradient Control
FeCo Alloy Mesochains by Co-precipitation
First Order Reversal Curve (FORC) Analysis of Iron-Nickel Zinc Ferrite Nanocomposites
Heavy Rare Earths at Grain Boundaries to Achieve Maximum Coercivity in Industrial Magnetic Materials
High Silicon Iron Alloy Strips by Single-step Shear Deformation
Low Cost Soft Magnets for High Temperature Sensing Applications
Magnetic and Structural Correlation of Ferrite-coated Ferrous Powder Soft Magnetic Composites
Magnetic Anisotropy in Nanocomposites – What More Do We Know, What Questions Remain?
Magnetic Field Induced Large Strain by Reversible Phase Transformation on Metamagnetic Shape Alloys
Magnetic Field Mapping at the Nanoscale in the Transmission Electron Microscope
Magnetic Materials and Minerals in Planetary Exploration
Magnetic Nanoparticle-based Solder Composites for Electronic Packaging Applications
Magnetic Phases in the Systems Mn-Bi, Mn-Sb, and Mn-Bi-Sb
Magnetic Properties of Size-controlled Ni Nanoparticles Modified with Tri-n-octylphosphine
Magnetocaloric Effects in Ni-Mn-Al Type Alloys
Magnetocaloric Materials: From Advanced Characterization to Industrial Application
Microstructural Effects of Thermomagnetic Treatments in Sintered Nd-Fe-B Magnets
Nanocomposite Soft Magnetic Alloys: Two Decades of Progress
Novel Applications of Magnetic Nano-composites in Semiconductor Packaging
Nucleation Mediated Nanostructures in Soft Magnetic Fe-Si-B Based Alloys (Invited)
Observation of ‘Re-entrant Inverse-magnetocaloric Phenomenon’ and Asymmetric Magnetoresistance Behavior in RFe5Al7 (R= Gd and Dy)
Often Overlooked Aspects of the Symmetry of Magnetic Materials
Optimizing Process Parameters for Additive Manufacturing of Bonded Permanent Magnets
Preparation and Characterization Fe-Pt and Fe-Pt-M (M=B, SI) Microwires
Processes for the Recycling of Rare Earth Permanent Magnets
Processing and Characterization of Magnetic Materials for Magnetic Refrigeration, High Frequency Power Conversion, and High Temperature Electrical Machine Applications
Rapid Crystallization of Non-equilibrium Rare-earth and Non-rare-earth Permanent Magnet Materials
Rare Earth Lean Nanocrystalline Permanent Magnets
Recent Studies on Half Metallic Ferromagnets Belonging to the Heusler Family
Soft-Phase Engineering and Hard-Phase Engineering in Exchange-Coupled Nanocomposite Magnets
Synthesis of Fe3O4 Nanostructures and Their Potential Applications
Synthesis of Submicron R-Co and R-Fe-B Particles by the Mechanochemical Process
Textures of Non-oriented Electrical Steels Processed by Skew Rolling
The Role of Alloying Elements on the Magnetostriction of Fe
Transition Metal Based Magnetocaloric Materials
Tunable Control of Magnetic Nanofluids
Unusual Magneto-Elasticity of Fe-(Co), Ga, (Al, Ge, Si) Alloys

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