Coercive force

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Investigation of fabrication of Co-Zr based rare earth-free hard magnetic alloys by Melt-Spinning method

In this paper, we present the effects of subtituting elements of M (Ti, Si and Nb) and annealing temperatures on the structure and magnetic properties of Co79-xZr18+x-yMyB3 alloy ribbons (x = 0 - 2, y = 0 - 4). Hard magnetic properties of the alloy ribbons can be strengthened so significantly as a coercivity of Hc > 4 kOe and maximum energy product of (BH)max > 3.5 MGOe with an appropriate concentration of Ti, Si or Nb and annealing process.

11p abcxyz123_02 03-03-2020 16 2 Download

Điều kiện kết tủa màng hợp kim từ tính coni : ảnh hưởng của các yếu tố công nghệ đến các tính chất từ

Influences of electrodeposition parameters and anealling temperature on magnetic properties of the electrodeposited thin film CoNi were investigated. Results show that coercive force Hc attains the maximum value when the concentration ratio of metals in the electrolyte is [Co2+] : [Ni 2+] = 0.2 : 0.8 ÷ 0.4 : 0.6. The presence of Sacharin in electrolyte enhances the coercive force (Hc) of the electrodeposited layer. The increase of layer thickness results the decrease of Hc.

5p uocvong01 24-09-2015 34 4 Download