A magnet is an object that attracts a material that has magnetic properties and the ability to produce a magnetic field or flux that emits from the north pole to the south pole, the magnet is made from different materials with different strengths and applications.
TYPES OF MAGNETIC
There are three main types of magnets and their mood of applications.
1. PERMANET MAGNTE.
2. TEMPORARY MAGNETE.
3. ELECTROMAGNETS.
PERMANENT MAGNET. This is a type of magnet that produces its own power by itself without any external source or electric power These magnets are made of different types which produce different strengths here are four elements they are made out of.
>ALUMINUM-NICKLE-COBALT (ALNICOS)
>STRONTIUM-IRON (FERRITE AND CERAMIC)
>NEODYMIUM-IRON-BORON (NEODYMIUM MAGNETS)
>SAMARIUM-COBALT
>ALUMINUM-NICKLE-COBALT (ALNICOS) Alnico magnet got their name from the first two latter from the element they contain, these magnets have physical properties like.
>Strong magnetic properties and ferromagnetism are high.
>They produce a very strong magnetic field and are resistant to demagnetization.
>It can maintain its magnetic properties at high temperatures, Alnico magnets are a type of magnet that has useful magnetic power at a red-hot temperature range from (500C-800C). They have some of the highest curie points among all the magnetic Materia, the temperature at which materials lose their magnetic properties is known as the curie temperature.
Utilizations OF ALNICO MAGNET
These magnets are normally utilized in machines that work in high temperatures and furthermore utilized in areas of strength where are required such are electric engines, electric guitar pickups, mouthpieces, sensors, amplifiers, and cow magnets.
>FERRITE AND Artistic MAGNET; Ferrites are otherwise called ceramic magnets they are impervious to consumption, and they can be utilized in water, Although not sufficient like uncommon earth neodymium magnets (NDFEB). Their high coercivity and somewhat minimal expense make them ideal for use in engines and high-temperature engines prominently utilized in marine machines, sensors, electric engines, and significantly more, Because the iron is as of now in a stable oxidized structure, in its design iron can't oxidize (rust) any further when in touch with water or being presented to the air, strontium ferrite (SRO6FE203) magnet and barium ferrite (BAO6FE203) magnet are the two kinds of earthenware ferrite magnet, The strontium ferrite magnet is the most normally produced because of its solid attractive properties, ferrite magnets can be utilized at temperatures up to +250C-300C.
There are by and by 27 grades of ferrite attractive grades utilized today >C5(also known as feroba2, fer2, y30, and hf26/18) and C8> (otherwise called feroba3, fer3, and y30h-1) different grades rely upon the application decision which should be utilized for.
>NEODYMIUM-IRON-BORON (NEODYMIUM MAGNETS)
This is a kind of magnet that is produced using a composite of neodymium +iron+boron to frame the NDZFE14B, a tetragonal glasslike design, and part of the most grounded magnet and part of the uncommon earth-attractive family. They have an extremely impressive and attractive field, they can respond to cool air gradually and hot air quickly and quicker which brings about consumption or "rust", and can strip, dissipate, break, and a lot more when in touch.
Utilizes NEODYMIUM MAGNETS
They are especially utilized in hard plate drives, cell phones, and video and sound frameworks of TV.
Neodymium magnets are additionally generally utilized in attractive separators, channels, and ionizers in the development of ON-OFF button wellbeing segments and security frameworks.
>SAMARIUM-COBALT; This Is essential for an intriguing earth magnet that is produced using samarium and cobalt, this magnet is solid but not so solid as a neodymium magnet. it has attractive strength and power with a limit of (BH max) which goes from 14 Super gauss-oersted (MG.Oe)to 33(MG.Oe), which is roughly 112kj/m3 to 264kj/m3 their hypothetical cutoff point is 34 MG-Oe, around 272kj/m3, This magnet has a fragile, and inclined to breaking and chipping, they have the brilliant temperature solidness while keeping up with their attractive properties in outrageous high-temperature conditions, some samarium cobalt magnet is normally utilized in aviation, car and military applications, samarium cobalt (SMCO) magnet contains less free iron than neodymium magnet and consequently giving preferable impervious to consumption over neodymium magnet.
TEMPORARY MAGNET: This magnet is produced using delicate metals that are charged just when presented to a super durable attractive field or electric flow. At the point when interacting with an attractive field, they become polarized. at the point when the attractive field or current is taken out, they slowly lose their attraction. Instances of this magnet are. paperclips, iron nails, and one more comparable illustration of a transitory magnet is an electric engine is one more illustration of this brief magnet that holds attraction when an electrical flow goes through it.
Utilizations OF Impermanent MAGNET
Impermanent magnet is utilized in phones, amplifiers, generators, and electric engines.
ELETROMAGNET; This magnet is made by running an electric flow through a loop of wire on a metal center. the stimulated loop or wire creates an attractive field however when the current is short off the attractive field vanishes.
Electromagnets are used for applications that require the strength of a magnet with control of the attractive field or transition which incorporate railroad tracks, engine motors or electric engines, X-ray machines, and cranes. They're likewise utilized in PC and TV equipment.
FACTOR THAT Influences MAGNET
STEEL THICKNESS: The steel thickness influences the ingestion of the attraction; attraction is the power by which items are drawn to or repulsed by another article.
AIR Hole: Air holes influence the attractive circuit of an electric magnet (electromagnet)
MATERIAL: The material used to influence the assurance of attractive strength.
SHEER Power: This is a demonstration of scouring two magnets together while eliminating them as opposed to pulling them.
TEMPERATURE: The magnet is delicate to a temperature that reaches beyond their restriction of dealing with.
HEAT: Intensity typically diminishes the attraction of a magnet; intensity can cause a magnet to lose its attractive properties.
CORROSION: Most earth uncommon magnets can undoubtedly "rust" gradually on cool air and water yet quick on hot air and water diminishing their attractive properties during the time spent the response when it happens on them.
NUMBER OF Circles; In electromagnetic which need electric flow and curl to work, the higher the flow and looping amount with a delicate iron core(solenoid) the more grounded the attractive field.