About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Magnetic Materials
|
Presentation Title |
Effect of Thermodynamic and Sintering Atmosphere Parameters on Magnetic Properties of Mn-Zn Ferrites |
Author(s) |
Suraj V. Mullurkara, Alexander Pierce, Christopher Bracken, Paul Richard Ohodnicki |
On-Site Speaker (Planned) |
Suraj V. Mullurkara |
Abstract Scope |
Manganese zinc (Mn-Zn) ferrites are soft magnets of choice for power magnetic applications within the 100 kHz to 10 MHz operating frequency range due to moderate saturation flux densities of 0.4-0.5 T and high resistivities which limits eddy current losses. Ferrites are traditionally prepared via standard powder processing routes involving a double sintering step, with resultant properties heavily dependent on detailed thermal and atmospheric parameters during sintering. In this work, ferrite samples are synthesized with varied sintering temperatures and atmospheres to control phase identity and microstructural evolution as characterized by XRD and SEM. DC magnetic properties will be characterized via VSM using M-H loops and temperature dependent magnetization. Permeabilities measured via impedance analyzer will also be correlated with microstructural changes by fitting microstructurally dependent dispersion models. Core loss will be measured using the two winding technique to understand effects of sintering parameters on hysteresis, eddy current and anomalous losses. |
Proceedings Inclusion? |
Planned: |
Keywords |
Magnetic Materials, Ceramics, Other |