A/m Hysteresis Loop: Wide vs Narrow Differences & Importance

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SUMMARY

The discussion centers on the differences between wide and narrow hysteresis loops in ferromagnetic materials, emphasizing that narrower loops, indicative of soft ferromagnetic materials, require less energy to magnetize and demagnetize. This characteristic minimizes energy losses, making soft materials preferable for applications where efficiency is critical. Coercivity is highlighted as a key factor that influences the area of the hysteresis loop, with specific values provided for iron (160 A/m) and samarium-cobalt (3.2 x 106 A/m).

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  • Understanding of hysteresis loops in ferromagnetic materials
  • Knowledge of coercivity and its implications
  • Familiarity with magnetic properties of materials
  • Basic principles of magnetization and demagnetization
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Dash-IQ
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Wide/Narrow Hysteresis loops, what's the difference?

When calculating the work done to magnetize a ferromagnetic material, calculating the hysteresis loop is the right way?
I know the narrower loop(soft) needs less energy(work) to magnetize or demagnetize it is that true?
That's why it's best to use Soft ferromagnetic materials to minimize losses in energy etc...?

image004.jpg


What is the importance of coercivity? It determines the "area" of the hysteresis loop?
Iron = 160 A/m
samarium-cobalt = 3.2 x 106
 
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Hi Dash-IQ! :smile:
Dash-IQ said:
When calculating the work done to magnetize a ferromagnetic material, calculating the hysteresis loop is the right way?
I know the narrower loop(soft) needs less energy(work) to magnetize or demagnetize it is that true?
That's why it's best to use Soft ferromagnetic materials to minimize losses in energy etc...?

Yes, the area inside the hysteresis loop shows exactly the amount of the work done in one cycle. :wink:
What is the importance of coercivity? It determines the "area" of the hysteresis loop?
Iron = 160 A/m
samarium-cobalt = 3.2 x 106

I'm not familiar with coercivity … i thought it was just another word for "softness"? :confused:

Can anyone else answer this? o:)​
 
i want a b-h curve of a 20kv/400v transformer in maxwell software...any body help me?
 

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