This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Wide Temperature Core Loss Characteristics of Transverse Magnetically Annealed Amorphous Tapes for High Frequency Aerospace Magnetics
Technical Paper
1999-01-2542
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
100 kHz core loss properties of sample transverse magnetically annealed, cobalt-based amorphous and iron-based nanocrystalline tape wound magnetic cores are presented over the temperature range of -150 C to 150 C, at selected values of Bpeak. For B-fields not close to saturation, the core loss is not sensitive to temperature in this range and is as low as seen in the best MnZn power ferrites at their optimum temperatures. Frequency resolved characteristics are given over the range of 50 kHz to 1 MHz, but at Bpeak = 0.1 T and 50 C only. For example, the 100 kHz specific core loss ranged from 50 mW/cm3 to 70 mW/cm3 for the 3 materials, when measured at 0.1 T and 50 C. This very low high frequency core loss, together with near zero saturation magnetostriction and insensitivity to rough handling, makes these amorphous ribbons strong candidates for power magnetics applications in wide temperature aerospace environments
Recommended Content
| Aerospace Material Specification | Steel Tubing, Seamless 0.95Cr - 0.20Mo (0.28 - 0.33C) (SAE 4130) 125 ksi (862 MPa) Tensile Strength |
| Aerospace Material Specification | Steel Tubing, Seamless 0.95Cr - 0.20Mo (0.28 - 0.33C) (SAE 4130) 150 ksi (1034 MPa) Tensile Strength |
| Aerospace Material Specification | Copper-Beryllium Alloy, Bars and Rods 98Cu - 1.9Be Solution and Precipitation Heat Treated (TF00, formerly AT) |
Authors
Citation
Niedra, J. and Schwarze, G., "Wide Temperature Core Loss Characteristics of Transverse Magnetically Annealed Amorphous Tapes for High Frequency Aerospace Magnetics," SAE Technical Paper 1999-01-2542, 1999, https://doi.org/10.4271/1999-01-2542.Also In
References
- Warlimont, H. The Impact of Amorphous Metals on the Field of Soft Magnetic Materials Mater. Sci. and Eng. 99 1988 1 10
- Herzer G. Hilzinger, H.R. Recent Developments in Soft Magnetic Materials Physica Scripta T24 1988 22 28
- Yoshizawa Y. Yamauchi, K. Fe-Based Soft Magnetic Alloys Composed of Ultrafine Grain Structure Materials Transactions, JIM 31 4 April 1990 307 314
- Herzer G. Hilzinger, H.R. Surface Crystallization and Magnetic Properties in Amorphous Iron Rich Alloys J. Magn. Magn. Mat. 62 1986 143 151
- Wieserman W.R. et al. High Frequency, High Temperature Specific Core Loss and Dynamic B-H Hysteresis Loop Characteristics of Soft Magnetic Alloys 25th Intersociety Energy Conversion Engineering Conference Reno, NV August 1990 Also NASA TM-103164
- Thottuvelil V.J. et al., High-Frequency Measurement Techniques for Magnetic Cores IEEE Power Electronics Specialists Conference June 1985 412 425