scholarly journals Structural and Magnetic Properties of P Microalloyed Fe76Cu0.8Nb2.2B9Si12 Alloys

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1110
Author(s):  
Jiawei Li ◽  
Qian Ding ◽  
Changjiu Wang ◽  
Aina He ◽  
Yaqiang Dong ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Magnetic Properties ◽  
High Power ◽  
Electronic Devices ◽  
High Saturation Magnetization ◽  
Power Electronic ◽  
Processing Window ◽  
Magnetic Softness ◽  
Structural And Magnetic Properties ◽  
Microstructure And Magnetic Properties

The development of Fe-based nanocrystalline alloys with high saturation magnetization (Bs), excellent magnetic softness and good manufacturability is highly desirable. Here, the effect of substituting 1 at% P for B and Si on the thermal stability, microstructure and magnetic properties of Fe76Cu0.8Nb2.2B9Si12 alloy has been studied in detail. It was found that replacing B with P effectively reduces the coercivity (Hc) of the alloy without deteriorating the Bs and permeability (μ). However, replacing Si with P has little effect on the Hc and Bs, yet significantly reduces the μ. The variation in the magnetic properties can be well understood from the evolution of the microstructure and magnetic anisotropy induced by P microalloying. The Fe76Cu0.8Nb2.2B8Si12P1 alloy with a good processing window, a high Bs of 1.41 T, a great μ of 29,000 at 1 kHz and a low Hc of 0.6 A/m is suitable for high-power electronic devices.

scholarly journals Influence of Dissolving Fe–Nb–B–Dy Alloys in Zirconium on Phase Structure, Microstructure and Magnetic Properties

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2526
Author(s):  
Grzegorz Ziółkowski ◽  
Artur Chrobak ◽  
Ewa Talik ◽  
Joanna Klimontko ◽  
Dariusz Chrobak
Keyword(s):  
Magnetic Properties ◽  
Phase Structure ◽  
Magnetic Saturation ◽  
Casting Method ◽  
Suction Casting ◽  
Structural And Magnetic Properties ◽  
Magnetization Processes ◽  
Microstructure And Magnetic Properties

This paper refers to the structural and magnetic properties of [(Fe80Nb6B14)0.88Dy0.12]1−xZrx (x = 0; 0.01; 0.02; 0.05; 0.1; 0.2; 0.3; 0.5) alloys obtained by the vacuum mold suction casting method. The analysis of the phase contribution indicated a change in the compositions of the alloys. For x < 0.05, occurrence of the dominant Dy2Fe14B phase was observed, while a further increase in the Zr content led to the increasing contribution of the Fe–Zr compounds and, simultaneously, separation of crystalline Dy. The dilution of (Fe80Nb6B14)0.88Dy0.12 in Zr strongly influenced the magnetization processes of the examined alloys. Generally, with the increasing x parameter, we observed a decrease in coercivity; however, the unexpected increase in magnetic saturation and remanence for x = 0.2 and x = 0.3 was shown and discussed.

Topology Optimization of High Power Electronic Devices

2001 ◽  
pp. 119-131
Author(s):  
Ronald H. W. Hoppe ◽  
Svetozara Petrova ◽  
Volker Schulz
Keyword(s):  
Topology Optimization ◽  
High Power ◽  
Electronic Devices ◽  
Power Electronic

scholarly journals Development of Technology for High-Power Industry Converters

2019 ◽  
Vol 8 (10) ◽  
pp. 3130-3132 ◽  
Keyword(s):  
Wind Turbines ◽  
High Power ◽  
Electronic Devices ◽  
Relevant Information ◽  
Power Industry ◽  
Power Converter ◽  
Power Electronic ◽  
Photo Voltaic ◽  
Universal Procedure

The power stable of the converters is actually coming from some milliwatts (as in a cellphone) to dozens of megawatts in an HVDC gearbox body. Along with "classic" electronic devices, power streams, as well as current, are actually utilized to hold relevant information, whereas along with power electronic devices, they lug power. This inverter may magnify source of power like gas- mobiles, little wind turbines, as well as photo-voltaic assortments (i.e. it agrees with for circulated power treatments). The principles of resources and also changes are actually described and also categorized. Coming from the general regulations of resource propinquities, a universal procedure of power converter formation exists.

Microstructure and Magnetic Properties of Rapidly Solidified Sm(CobalFe0.11Cu0.10Zrx)7 Alloys

2014 ◽  
Vol 893 ◽  
pp. 357-360
Author(s):  
Li Ya Li ◽  
Yi Cheng Ge ◽  
Yuan Dong Peng
Keyword(s):  
Magnetic Properties ◽  
Saturation Magnetization ◽  
Systematic Study ◽  
Structure Type ◽  
Zr Addition ◽  
Heat Treated ◽  
Intrinsic Coercivity ◽  
Structural And Magnetic Properties ◽  
Rapidly Solidified ◽  
Microstructure And Magnetic Properties

We reported a systematic study of the effect of Zr content on the structural and magnetic properties of rapidly quenched Sm (CobalFe0.11Cu0.10Zrx)7 alloys with x varying from 0 to 0.04. The results show that the addition of Zr greatly affected the microstructure and magnetic properties of the heat-treated ribbons. The Zr-free ribbon had crystallized as the 1:7H structure as the main phase while the ribbon with Zr addition adopted the 2:17R structure type. A Sm2Co7 phase was observed in the heat-treated ribbons when the Zr content x increased to 0.04. It is found that while the Zr content was increased from 0 to 0.04, saturation magnetization of the heat-treated ribbons was decreased from 11.9kGs to 3.3 kGs, and the intrinsic coercivity was increased from 0.07 kOe to 11.7 kOe. The highest intrinsic coercivity, Hci=11.7 kOe, was obtained in the ribbon with Zr content of 0.03.

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