Its a common question – where to find neodymium magnets in household items? Neodymium magnets are made of neodymium as their name suggests and are the most widely used type of rare-earth permanent magnet.
To put their strength into perspective, they can produce magnetic fields with up to 1.5 teslas (a unit of magnetic field).
These are the most powerful permanent magnets available. Neodymium magnets are used more than fancy fridge magnets. They have permeated our lives recently, that we are today surrounded by magnets than ever.
History of Neodymium Magnets
Before the 1950s, most homes had only a few magnets. Today, that number is now likely to have reached hundreds as there are many electronics with neodymium magnets.
Magnets are normally manufactured in different shapes and sizes to meet the demands of different areas.
The most used types of magnets that are used are cylinder magnets, round magnets and arc-shaped magnets.
Where to Find Neodymium Magnets in Household Items
You will find magnets in audio speakers, medical equipment, electronics, computers, computer speakers and our homes.
Not many are aware that the types of stuff you use at home to have been designed with a magnet. So where to find neodymium magnets in household items? Let’s see some of the places to find magnets at home.
1. The Kitchen
In the kitchen, you find a couple of items that you use daily, which probably may not know even, exist. Here are the items below:
Microwave Magnets – The microwave that you use to heat food and drinks uses magnetrons consisting of magnets to generate electronic waves.
Spice Rack – This one contains a magnetic rack with neodymium magnets, and it helps when clearing counter space. Also, the spice rack is easy to use.
Refrigerator Doors – Refrigerators and freezers are designed with a seal of magnetic mechanism to make it easy to open from the inside.
2. The Bedroom
Hanging Art – In most bedrooms today, you will find hook magnets on the wall, and they are used to hang posters and wall art. Also, you can use them to organize closets by hanging jewelry, belts, scarves and more.
Duvet Covers – For duvets that are needed to remain closed use magnets to allow them to stay in constant design.
Jewelry and Handbags – Magnetic clasps are used to design jewelry. On the other hand, handbags often incorporate neodymium magnets into the clasps
3. The Office
The office is another place you will find neodymium magnets used and the funny thing is not many realize the creation process of the items they use. In fact, those who are in the know about the magnets in an office setup is a small per cent, especially technicians. For others, they know about magnets in ordinary things like speakers. But for the office, here is a couple of items designed with a magnet in them.
Computers – Computers require a lot of magnetism for them to function. The hard driver’s disk has tiny magnets coating, which allows computers to store data.
Cabinets – Why would cabinet’s door be fitted with magnets in them? Probably that makes you wonder their use, but they are very useful to prevent them from popping open unintentionally.
Organizing Office Supplies – Neodymium magnet is vital to the organization. For instance, metal office supplies such as thumbtacks, and paperclips will stick to the magnet to avoid them getting misplaced.
CD/ DVD – A CD/ DVD drive normally has 2 small neo magnets near the lens.
4. The Dining Room
Tablecloths – Neodymium magnet is useful in the designing of tablecloths. Magnet use helps to hold the tablecloth in one place when having an outdoor party. The magnets prevent the wind from blowing them away together with the items placed on the table. Use of magnets rarely damages the table with the use of tape residue or holes.
5. Audio Speakers
In answering the question where to find neodymium magnets in household items, audio speakers are probably the most likely option.
At home, you have many speakers all over including TV speakers, radio speakers, microphones, earphones, woofer and more. So why do speakers have magnets?
The majority of speakers are designed with some permanent magnet that interacts with a coil of wire. If you’re wondering how strong are speaker magnets – most range from about 0.001 tesla and go up from there, but it depends on the size and power of the speaker.
The audio signal is supposed to flow through the wire and then moves the speaker. The speaker moves the air, making a sound.
So, which speakers at home that are designed with neodymium magnet? This may surprise you like the small size counts.
While the huge type such as subwoofer may use a ceramic magnet, the tiny ear-buds that you use on your mp3 or smartphone are likely to use neodymium magnets.
Normally, the speakers are controlled by an electric current and two magnets. A mobile electromagnetic coil is suspended near a fixed magnet, and an electric current is pushed via the coil very quickly.
The coil is attracted to the magnet after getting charged and gets repelled again creating vibrations that are amplified to become music to your ears.
History of Neodymium Magnets
Neodymium magnets date back in 1980’s when they were first invented by general motors and Sumitomo special metals.
These companies realized that combining neodymium with small amounts of boron and iron; they were able to come up with a powerful magnet.
Sumitomo special motors and General Motors later released the world’s first neodymium magnets, offering a cost-effective alternative to the rare earth magnets on the market.
Neodymium vs. Ceramic Magnets
What is the difference between neodymium magnets and ceramic magnets? Ceramic magnets are way more cheaply compared to neodymium, making them a popular choice for consumer applications. But there is no substitution for neodymium magnets when it comes to commercial applications.
Ceramic magnets are less strong magnetically and not like neodymium magnets which are stronger and harder. Ceramic magnets are brittle, and that makes them susceptible to damage. They easily break if dropped on the ground.
On the other hand, neodymium magnets are physically harder and rarely change when exposed to stressful conditions. Also, when dropped, you will never see them break as ceramic magnets do. The only advantage ceramic magnet has over neodymium magnet is resistance to corrosion. When exposed to humidity even regularly, it rarely corrodes or rusts.
Where can you find neodymium?
Being the second most abundant of the rare-earth elements (after cerium) neodymium is an element almost as abundant as copper. It is found mainly as a conglomerate in mines with minerals that include all lanthanide minerals, like monazite and bastnaesite. Neodymium mines can be found in India, Brazil, USA, Australia, Sri Lanka and China, with China being the world’s largest supplier.
How Can You Tell If A Magnet Is Neodymium?
Neodymium magnets are stronger than regular magnets. In fact, they are able to exert more magnetic force than any other magnet of the same size and once attached to another magnet, are very difficult to pull apart. There are also immensely difficult to demagnetize by a magnetic field.
What Is The Cost Of Neodymium Magnet?
The price of the rare earth metal tends to fluctuate but is currently speculated at $66,000 per metric ton.
How Long Does Neodymium Magnet Last?
Practically forever. They are permanent magnets and so they barely wear out and if maintained properly, will only lose a fraction of their performance every 100 years (maximum of 1% every decade). Overheating and physical damage are the two factors which can shorten a magnet’s lifespan.
They are also considered the strongest magnet in the world. The strongest permanent magnets in the world are made from a magnetic material made from an alloy of neodymium, iron and boron which form the chemical structure Nd2Fe14B.
We hope we’ve sufficiently answered your question of where to find neodymium magnets in household items.
You can see how neodymium magnets play a vital role in most of the equipment’s that you use at home. Some neodymium magnets though are susceptible to different temperatures, especially high ones, make them lose their temperature. But for specialized neodymium magnets, today can be able to perform under extremely high environmental temperatures.
Apart from household items, neodymium magnets can be used in both commercial and industrial needs. With time, the use of neodymium magnets will rise and help to enhance the design of various equipment across different settings.