Mn-Zn Ferrite TP4K Material with Low Power Loss at High Temperature

2013 ◽  
Vol 320 ◽  
pp. 119-122
Author(s):  
Bing Bing Xing ◽  
Min Nie ◽  
Qiang Zhang ◽  
Yin Chuan Li
Keyword(s):  
High Temperature ◽  
Magnetic Flux ◽  
Low Power ◽  
Flux Density ◽  
Power Loss ◽  
Room Temperature ◽  
Magnetic Flux Density ◽  
High Saturation ◽  
Zn Ferrite

The Mn-Zn ferrite TP4K material was prepared by traditional oxide method, which has high saturation magnetic flux density and low power loss at high temperature. The Bs of the TP4K material is 535mT at room temperature, 430mT at 100°C, 350mT at 140°C; At temperature T=140°C, the power loss is lower than 340 kW/m3, which was measured under the frequency f=100kHz, the magnetization B=200mT.

scholarly journals Ferrites with High Saturation Magnetic Flux-density at High Temperature for Automobiles.

2002 ◽  
Vol 49 (8) ◽  
pp. 691-695 ◽  
Author(s):  
Masahiko Watanabe ◽  
Katsushi Yasuhara ◽  
Atsuyuki Nakano ◽  
Takeshi Nomura
Keyword(s):  
High Temperature ◽  
Magnetic Flux ◽  
Flux Density ◽  
Magnetic Flux Density ◽  
High Saturation

New FeSiBPCCu amorphous/noncrystalline alloys with high saturation magnetic flux density and low coercivity

2022 ◽  
Vol 578 ◽  
pp. 121355
Author(s):  
Kuang Lv ◽  
Yuluo Li ◽  
Ningning Shen ◽  
Gaofeng Li ◽  
Yanli Wang ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Flux Density ◽  
Magnetic Flux Density ◽  
High Saturation

Rotor Power Losses in Planar Radial Magnetic Bearings — Effects of Number of Stator Poles, Air Gap Thickness, and Magnetic Flux Density

1998 ◽  
Author(s):  
P. E. Allaire ◽  
M. E. F. Kasarda ◽  
L. K. Fujita
Keyword(s):  
Magnetic Flux ◽  
Flux Density ◽  
Eddy Current ◽  
Power Loss ◽  
Magnetic Bearing ◽  
Air Gap ◽  
Magnetic Bearings ◽  
Magnetic Flux Density ◽  
Power Losses ◽  
Loss Mechanism

Rotor power losses in magnetic bearings cannot be accurately calculated at this time because of the complexity of the magnetic field distribution and several other effects. The losses are due to eddy currents, hysteresis, and windage. This paper presents measured results in radial magnetic bearing configurations with 8 pole and 16 pole stators and two laminated rotors. Two different air gaps were tested. The rotor power losses were determined by measuring the rundown speed of the rotor after the rotor was spun up to speeds of approximately 30,000 rpm, DN = 2,670,000 mm-rpm, in atmospheric air. The kinetic energy of the rotor is converted to heat by magnetic and air drag power loss mechanisms during the run down. Given past publications and the opinions of researchers in the field, the results were quite unexpected. The measured power losses were found to be nearly independent of the number of poles in the bearing. Also, the overall measured rotor power loss increased significantly as the magnetic flux density increased and also increased significantly as the air gap thickness decreased. A method of separating the hysteresis, eddy current and windage losses is presented. Eddy current effects were found to be the most important loss mechanism in the data analysis, for large clearance bearings. Hysteresis and windage effects did not change much from one configuration to the other.

High saturation magnetic flux density of Novel nanocrystalline core annealed under magnetic field

2020 ◽  
Vol 826 ◽  
pp. 154136
Author(s):  
Seoyeon Kwon ◽  
Sumin Kim ◽  
Haein Yim ◽  
Ki Hoon Kang ◽  
Chong Seung Yoon
Keyword(s):  
Magnetic Field ◽  
Magnetic Flux ◽  
Flux Density ◽  
Magnetic Flux Density ◽  
High Saturation
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