What is nickel zinc ferrite?
Nickel–zinc ferrites are considered the most versatile soft ferrites because of its high resistance and low eddy current losses [1]. In addition, it is used in radio-frequency circuits, high-quality filters, rod antennas, and transformer cores [2].
What is nickel ferrite?
Nickel ferrite is one of the versatile and technologically important soft ferrite materials because of its typical ferromagnetic properties, low conductivity and thus lower eddy current losses, high electrochemical stability, catalytic behavior, abundance in nature, etc[8].
What is Mn Zn ferrite?
MnZn ferrites are a class of soft magnetic materials that have very good electrical, magnetic and optical properties. The properties of MnZn ferrites include high value of resistivity, permeability, permittivity, saturation magnetization, low power losses and coercivity.
Is nickel ferrite a ceramic?
Nickel ferrite ceramics were fabricated by single-step and two-step sintering under various conditions. The effects of each sintering process on the densification, micro- structure and properties of the ceramics were investigated.
What are ferrites and give its properties?
ferrite, a ceramic-like material with magnetic properties that are useful in many types of electronic devices. Ferrites are hard, brittle, iron-containing, and generally gray or black and are polycrystalline—i.e., made up of a large number of small crystals.
Why is ferrite magnetic?
In ferrites the magnetic moments of constituent atoms align themselves in two or three different directions. A partial cancellation of the magnetic field results, and the ferrite is left with an overall magnetic field that is less strong than that of a ferromagnetic material.
What is ferrite formula?
A ferrite is usually described by the formula M(FexOy), where M represents any metal that forms divalent bonds, such as any of the elements mentioned earlier. Nickel ferrite, for instance, is NiFe2O4, and manganese ferrite is MnFe2O4; both are spinel minerals.
Do ferrites rust?
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. Ferrite compounds are extremely low cost, being made of mostly iron oxide, and have excellent corrosion resistance.
What are the different types of ferrites?
Ferrites are of different types namely Spinel, Hexagonal and Garnet ferrites [1]. It is observed that ferrite have important electromagnetic-wave absorbing properties, of which spinel and magnetoplumbite hexagonal ferrites are the most widely used in various applications.