Among them:
MnZn Ferrite Powder : For low loss high frequency applications, ideal for transformers and inductors below 5 MHz, with high permeability.
FeNi Powder : High permeability, low coercivity permalloy for power converters and transformers.
FeSiAl Powder (Sendust) : For low loss and high flux density applications, used in power electronics.
FeSi Powder : Economical option for filtering and inductors, with moderate magnetic properties.
Their choice depends on the desired properties and specific requirements, considering the environment and cost.
Typically used in applications requiring low losses at high frequencies.