Search results
Results from the WOW.Com Content Network
"Soft" ferrites have low coercivity, so they easily change their magnetization and act as conductors of magnetic fields. They are used in the electronics industry to make efficient magnetic cores called ferrite cores for high-frequency inductors , transformers and antennas , and in various microwave components.
The most common soft ferrites are: Manganese-zinc ferrite (MnZn, with the formula Mn a Zn (1−a) Fe 2 O 4). MnZn have higher permeability and saturation levels than NiZn. Nickel-zinc ferrite (NiZn, with the formula Ni a Zn (1−a) Fe 2 O 4). NiZn ferrites exhibit higher resistivity than MnZn, and are therefore more suitable for frequencies ...
"Soft" magnetic materials with low coercivity and hysteresis, such as silicon steel, or ferrite, are usually used in cores. Magnetic field ( green ) created by a current-carrying winding (red) in a typical magnetic core transformer or inductor, with the iron core C forming a closed loop, possibly with air gaps G in it.
It is mainly used for its magnetostrictive applications like sensors and actuators [2] thanks to its high saturation magnetostriction (~200 ppm). CoFe 2 O 4 has also the benefits to be rare-earth free, which makes it a good substitute for Terfenol-D. [3] Moreover, its magnetostrictive properties can be tuned by inducing a magnetic uniaxial ...
Ferrimagnetic materials have high resistivity and have anisotropic properties. The anisotropy is actually induced by an external applied field. When this applied field aligns with the magnetic dipoles, it causes a net magnetic dipole moment and causes the magnetic dipoles to precess at a frequency controlled by the applied field, called Larmor ...
Barium ferrite has been considered for long term data storage. The material has proven to be resistant to a number of different environmental stresses, including humidity and corrosion. Because ferrites are already oxidized it can not be oxidized any further. This is one reason ferrites are so resistant to corrosion. [9]
Losses, magnetostriction and B-H properties; Non-oriented and grain-oriented electrical steels; Novel and special magnetic materials; Fe-Ni, Fe-Co, amorphous and nanocrystalline alloys; Composites, powder cores and ferrites; Power applications (e.g. motors, transformers and actuators) Sensors, high frequency and electronic applications
The electric and magnetic properties of high quality epitaxial thin films of bismuth ferrite reported in 2003 [1] revived the scientific interest for bismuth ferrite. Epitaxial thin films have the great advantage that their properties can be tuned by processing [13] or chemical doping, [14] and that they can be integrated in electronic circuitry.