A magnet (ferrite) placed at room temperature, with the passage of time the magnetic will reduce or disappear?
A magnetic magnet of a magnet that produces a magnetic field that attracts ferromagnetic substances such as iron, nickel, cobalt, and other metals. Hang the midpoint of the bar magnet with a fine wire and hold the magnet at restWhen it ends, it points to the earth, the South and the north, pointing to one end of the north, known as the north pole or the N pole, pointing toward the South as the guide pole or the S pole. If the earth is thought to be a large magnet, the earth's magnetic north pole is the south pole, and the North Pole the North pole. Between the magnet and the magnet, poles are repulsive, heteropolarity attraction. So, the compass and the Antarctic and Arctic repulsion, compass and compass and compass repulsion, which attract. The magnet classification magnet can be divided into "permanent magnet" and "non permanent magnet"". Permanent magnets can be natural products, also known as natural magnets. They can also be manufactured by hand (the strongest magnet is NdFeB magnets). A non permanent magnet, such as an electromagnet, that exhibits magnetism only under certain conditions. The classified magnets can be classified as "permanent magnets" and "non permanent magnets"". A permanent magnet can be a natural product, also known as a natural magnet, or artificial
[c Ti magnet component is the internal structure of Wikipedia] name card of iron, cobalt and nickel atoms is special, the atom itself has a magnetic moment. In general, the arrangement of these minerals is rather disordered. And they influence each other and magnetic region shows no magnetic, but the external force (such as magnetic field orientation) will under the guidance of its molecular consistency, its magnetic properties will be displayed, which is usually called our magnet. The magnet consists of permanent magnet and soft, the permanent magnet is coupled with strong magnetic, electronic and magnetic materials to spin angular momentum into fixed direction, soft magnetic is coupled with the current (also a method with magnetic current) to remove iron will slowly lose magnetism.
The performance of ferrite is relatively stable, but in the state of nature a long time will produce oxidation reaction, the potential domain will be stable, energy will gradually weaken, but to achieve magnetic completely disappeared, this time there is no data support, should be a very lengthy process.
