Definition - What does Ferromagnetic mean?

Ferromagnetic is a material which works on the principle of ferromagnetism, which is the basic mechanism by which ferromagnetic materials such as ferrous alloys gain the properties of magnets and form permanent magnets or get attracted toward a magnet. A material is said to be ferromagnetic only if all of its magnetic ions contribute in increasing the net magnetization of the material.

Petropedia explains Ferromagnetic

The ferromagnetism phenomenon exhibited by ferromagnetic materials has very important applications in industries and modern technology nowadays. These ferromagnetic materials are the basis of many electromechanical and electrical devices such as electric motors, electromagnets, magnetic storage devices, transformers, generators, etc., which are used in various oil and gas industrial operations.

Ferromagnetic materials such as iron and other ferrous alloys contain unpaired electrons. These electrons have their own magnetic field that readily aligns itself whenever a magnetic field is experienced due to external magnetic field. This alignment tends to remain even when this external magnetic field is removed, i.e., when the ferromagnetic material acquires the properties of a magnet. This phenomenon is known as hysteresis. The hysteresis phenomenon becomes the principle of operation of synchronous electric motors and other electrical devices that function in the oil and gas industry operations.

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