Magnetic materials, Physics

Magnetic materials:

Ferromagnetic materials:

Ferromagnetic materials can be easily magnetised and exhibit strong magnetic properties. This group can be further subdivided into hard and soft magnetic materials.

Above certain temperatures ferromagnetic materials behave as paramagnetic materials.

Hard Iron

Hard magnetic materials are more difficult to magnetise but retain most of their magnetism when the magnetising force is removed.
Examples steel and nickel alloys such as:

Ticonal Iron Cobalt / Nickel / Aluminium / Titanium and Copper
Alnico Iron Nickel / Cobalt And Aluminium

These materials are used for permanent magnets

Soft Iron

Soft magnetic materials become magnetised very easily, but they loose most of the magnetism when the magnetising force is removed.
Examples alloys such as stalloy and mumetal

These materials are used for temporary magnets


Most materials fall into this group. These materials can only be magnetised with a great amount of effort, usually resulting in their destruction. If magnetised the material only exhibits small magnetic properties.

Examples - Wood / Glass /Air / Water / Aluminium


This is a small group of materials that actually oppose a magnetising force. If placed in a magnetic field they will decreases its strength. If suspended in a magnetic field, they will swing to adopt a position at 90 degrees to the lines of flux.

Examples - Copper / Brass / Bronze / Mercury / Bismuth


Posted Date: 9/13/2012 5:29:58 AM | Location : United States

Related Discussions:- Magnetic materials, Assignment Help, Ask Question on Magnetic materials, Get Answer, Expert's Help, Magnetic materials Discussions

Write discussion on Magnetic materials
Your posts are moderated
Related Questions
A 42.0-kg skateboarder travelling at 1.50 m/s hits a wall and bounces off of it.  If the magnitude of the impulse is 150.0 kg·m/s. Calculate the final velocity of the skateb

I need 4 numerical question about mobility

This is the virtue of a material resists flow of electric current. It should be as high as possible. When material is subjected to an electrical pressure then will always be a flow

Phase (Φ) : The amount which express at any instant, the displacement of the particle and it's direction of motion is known as the phase of the particle. If two elements of the

Fresnel''s diffraction due to a straight edge?

Q. What is cut-off or stopping potential? The minimum negative (retarding) potential specified to the anode for which the photo electric current becomes zero is called the cut

A 0.500 kg stone attached to the end of a string is whirled in a vertical circle of radius 1,20 meters. The center of the vertical circle is 1.50 meters above the ground. When the

composition of two SHM at right angle to each other and having time period in the ratio of 1: 2