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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Materials Engineering of Soft Magnets for Power and Energy Applications
Presentation Title Study of Temperature Dependent Magnetic Properties of Zr+4 and Ti+4 Substituted Cobalt Ferrites
Author(s) Monaji Vinitha Reddy, Sudhindra Rayaprol, Shara Sowmya, A. Srinivas, Dibakar Das
On-Site Speaker (Planned) Dibakar Das
Abstract Scope Substituted cobalt ferrites (CFO) have attracted research attention because of their potential for contactless stress sensing applications. This study demonstrates the variation in magnetic properties of Zr4+ and Ti+4 substituted cobalt ferrites under varying temperatures (5, 150 and 300K) and the results were compared. Polycrystalline Co1+xZrxFe2−2xO4 (CZFO) and Co1+xTixFe2−2xO4 (CTFO) (0 ≤ x ≤ 0.4) samples were prepared by conventional ceramic method. X-ray diffraction (XRD) confirmed the single phase cubic spinel structures, except for x = 0.4 composition. The magnetization (Mmax) and coercivity (Hc) were observed to increase with decrease in temperatures for all CZFO and CTFO samples. The magnetocrystalline anisotropy constant (K1) was increased substantially with decreasing temperatures both for Zr and Ti substituted samples. Maximum differential susceptibility (χ) increased with progressive Zr and Ti substitutions but decreased with increasing temperatures. Curie temperatures of Co1.2Zr0.2Fe1.6O4 and Co1.2Ti0.2Fe1.6O4 samples (~ 729K and 745K respectively) decreased compared to pure CFO (~787K).
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced Magnetic Polymer Nanocomposites for High Frequency Device Applications
Advanced Magneto-Optical Domain Analysis in Soft Magnetic Materials
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Candidate Coatings for Soft Magnet Composites: Insights Gained from Multiscale Electron Microscopy
Challenges to the Commercial Acceptance of Amorphous and Nanocrystalline Soft Magnetic Materials
Combinatorial High-throughput Discovery of Magnetic Materials in Thin Films
Consolidation and Behavior of Bulk Iron Nitride Soft Magnets via Spark Plasma Sintering
Consolidation of Bulk Ferrimagnetic Rare Earth Iron Garnets
Crystallization Products and Strain Annealing Effects in (FexNi1-x)80Nb4Si2B14 Metal Amorphous Nanocomposites (MANCs)
Development of Fe-based Bulk Metallic Glasses with Both High Saturation Flux Density and High Glass Forming Ability
Development of Mold Inductor for Power Conversion System
Direct Measurement of the Magnetocaloric Effect in NiMnIn Ribbons
Effect of Annealing Time on the Texture of a 2.8% Si Non-Oriented Electrical Steel after Inclined and Skew Rolling
Effects of Cooling Rate on 6.5% Silicon Steel Ordering
Ferrite-coated Fe Soft Magnetic Composites: Balance of Magnetic Permeability and Electrical Resistivity
Large Magnetocaloric Effect in Ga Substituted NiMnIn Metamagnetic Shape Memory Alloys
Magnetic Material Excited by Power Electronics in Electrical Engineering
Magnetic Properties of Shear-textured Fe-Si Sheet Produced by Simple Shear Deformation
Multi-parameter Magnetic Material Characterization for High Power Medium Frequency Converters
Nanocomposite Soft Magnetic Materials for High Frequency and High Power Conversion Applications
Novel Silicon Steel Nanocomposites via Severe Shear Deformation Approaches
Opportunities and Challenges in the Additive Manufacture of Soft Magnetic Silicon Steel Parts: Processing, Material Properties and Component Design
Structure-Processing-Property Relationships in High Temperature Nanocomposite Soft Magnets
Study of Temperature Dependent Magnetic Properties of Zr+4 and Ti+4 Substituted Cobalt Ferrites
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