Most of our magnets are grade N40 so if they are heated above 80˚C or 176˚F they will demagnetize and lose their strength. double hexagonal close-packed (dhcp) Neodymium is a chemical element; it has symbol Nd and atomic number 60. Far from its daily use we can find great magnets with scientific purpose. 8 megajoules. Ferromagnetism is the basic mechanism by which a material form permanent magnet (i. After the Sun, Jupiter has by far the strongest and biggest magnetic field in our solar system — it stretches about 12 million miles from east to west, almost 15 times the width of the Sun. BEST HEAVY-DUTY: Milwaukee 2-Piece Demo Screwdriver Set. Unlike Mercury, Venus, and Mars, Earth is surrounded by an immense magnetic field called the magnetosphere. Neodymium magnets are the most powerful sort of permanent magnet available to users. g. ) Palladium microalloy glass. These permanent magnets make some of the most durable ones in the market. They were developed in the 1970s and 1980s and are the strongest types of permanent magnets. (b) Discoverer of magnet: 3. Created in the 1980’s from an alloy consisting of neodymium (Nd), iron (Fe) , boron (B),. Ferromagnetism. The higher this unit, the more resistance a magnet has to demagnetisation. This attracting property is either natural, as in the case of lodestone, or induced (formed by unnatural means). BEST FOR FRENCH DOORS: Ikstar Magnetic. ) As a general rule, stainless deserves consideration if your engineering project requires at least one of these three qualities: A shiny, beautiful appearanceStudy with Quizlet and memorize flashcards containing terms like Which electromagnet is the strongest?, Fill in the word that completes the statement. Neodymium. The strongest magnets are made of rare earth materials, which are some of the most powerful substances in the world. Opposite poles attract. First, fix the paper on a drawing board. 2 °C; −425. Neptune has a small internal energy source, while Uranus does. 5, for the first time, a large high-temperature superconducting electromagnet was ramped up to a. What does grade n42 magnet mean? The grade N42 means a neodymium magnet has a maximum energy product of 42 MGOe. Insert: 1. Even with the strongest diamagnetic materials, though, the force is very small. Materials like plastics, glass, and rubber are not attracted to a magnet and are non-magnetic materials. Using the strongest materials known to man, scientists are building the most powerful electromagnet in the world — one that won't blow up a split second after it's turned on. They form closed loops that continue all the way through a magnetic material. Strong enough magnetic fields therefore destroy objects as we know them. temporary magnet. These are not the super strong neodymium. Summary: Scientists have measured the highest toughness ever recorded, of any material, while investigating a metallic alloy. And when it comes to magnets, opposite poles (N and S) attract while other poles (N and N, S and S) repel. A ceramic magnet known as lodestone, or magnetite, was the first magnetic material discovered and occurs naturally. Study with Quizlet and memorize flashcards containing terms like A current is induced in a wire by moving the wire through a magnetic field. The neodymium magnet is a kind of artificial permanent magnet. Magnetism - Ferromagnetism, Domains, Curie Point: A ferromagnetic substance contains permanent atomic magnetic dipoles that are spontaneously oriented parallel to one another even in the absence of an external field. There are a variety of effects that can be called magnetoresistance. The magnetic moment of a system measures the strength and the direction of its magnetism. It is the process in which warm material expands and rises while cool material contracts and falls. Diamagnetic materials repel magnets at the point of their greatest magnetic field. The majority of the magnets sold by Amazing Magnets are Neodymium Iron Boron (NdFeB), and most of our stock products are Grade N40. The entire magnet. Magnets are commonly found in consumer goods such as speakers, compasses, mobile phones, toys, motors, generators, cranes,. And its neodymium is a common element in the magnetic field. In this film, presenters Cayana and Louise test some magnets to find out which one is strongest. As a leading magnet supplier across the world, Stanford Magnets. Today they are used in computer hard drives, speakers, electric motors, wind turbines, etc. When a magnetic field gets stronger than about 500,000 Gauss, objects get ripped to pieces by the intense forces. The material can be found naturally; however, because of. Repeat the procedure for all your magnets and compare. Common Magnetic Material by Grade Range: Application Considerations. Which material would be the BEST selection for fabricating the STRONGEST permanent magnet? M B B D H Material A Material B Material C ООООООО Material D Materials C & D will perform equally well for this application. 5 22. Figure (PageIndex{1}): Ferromagnetism (a) nonmagnatized material and (2) Magnetized material with corresponding magnetic fields shown. An anonymous reader quotes a report from Motherboard: Earlier this year, researchers at the University of Tokyo accidentally created the strongest controllable magnetic field in history and blew the doors of their lab in the process. As for the hardness scale, titanium is 36 Rockwell C, while diamond is 98. A neodymium magnet is the strongest type of magnetic material. The world’s most powerful magnet is 44. Neodymium magnet is a general term for the powerful magnet. Tensile Strength: 130000 MPa. This artist impression shows HD 45166, a massive star recently discovered to have a powerful magnetic field of 43,000 gauss, the strongest magnetic field ever found in a massive star. This type of magnet only produces a magnetic field as long as the electrical is running. You can create an electromagnet with a simple coil of wire and a battery. When the current is shut off, the magnetic field disappears. • Supermendur, a material with very high maximum permeability, does not saturate until the applied field reaches ~1,000 oersteds. Record your results. 2), sodium (0. Table of Contents show. It's a bit thicker and heavier, but the kickstand is sturdier and way more flexible; you can adjust the viewing angle up to 180 degrees and it easily. This handy and useful neodymium strong cup magnet has a strong magnet. Uru is a metal ore from the first moon in existence, and has existed since the beginning of the universe. Magnetic Poles. Ferromagnetism is a property of certain materials (such as iron) that results in a significant, observable magnetic permeability, and in many cases, a significant magnetic coercivity, allowing the material to form a permanent magnet. About us. Magnetic materials with a high frequency are made of rare earth elements such as nickel and manganese. A magnetic field is an area of land where magnets are found. 25 inches) Online since: December 1999: Cost: $14. The dysprosium complex also remained strongly magnetic at a relatively balmy 80 K, matching the highest recorded. 4. Answer: A magnet is a material or object that can produce magnetic force. It resembles stone, but it also appears to have metallic properties. e. 3 Gs. The direction of magnetic force between two magnets depends on how the poles are oriented. A magnetic moment is a vector quantity, with a magnitude and a direction. Materials in the last three groups exhibit long-range magnetic order below a certain critical temperature. Symbol. Graphene, one of the world's strongest materials, isn't normally magnetic. CMEs originate from highly twisted magnetic field structures, or “flux ropes”, on the Sun, often visualized by their. Many neodymium magnets can be used up to 80 degrees. 5 °F). Try to pull the piece of metal away from the magnet. It is the strongest fusion magnet in the world. It strongly affects the shape of the M-H curve. D. This relationship runs in both. Researchers in Dresden have set a new world record for the strongest magnetic field ever manufactured at the High Magnetic Field Laboratory. They're produced from rare earth minerals, which are among the world's most powerful things. 72) and oxygen gas (0. An electromagnet is created by coiling a wire around a ferromagnetic material and running an electrical current through it. 5, for the first time, a large high-temperature superconducting electromagnet was ramped up to a. Ex: Liquid oxygen, sodium, platinum, salts of iron and nickel. 434 GPa, or giga pascals. STRONG - Includes 6 Neodymium Rare Earth Permanent Cup Magnets 1. Terms/Concepts: Magnets; Magnetic Field; S/N Poles; ForcePermanent magnets can be made from ferromagnetic materials. If the current in each wire is the same, which wire produces the strongest magnetic field? A. The magnet is as powerful as a previous structure 40 times its size. This means that the density of field lines indicates the strength of the field. 2. New Magnesium based alloy as World's strongest and lightest metal to change the world. Linus builds an electrical circuit with a battery and with wires that carry the current. Materials in the first two groups are those that exhibit no collective magnetic interactions and are not magnetically ordered. Neodymium magnets are considered part of the family of rare earth magnets because their main element is the rare earth element. Hence, the magnetic field strength could go up to B ~ 10 28 Gauss, a huge number compared with the maximum B ~ 10 15 − 10 16 Gauss observed in magnetars. BEST LIGHT-DUTY: Augo Magnetic Screen Door. Quadrupole magnets are useful as they create a magnetic field whose magnitude. These substances have high magnetic permeability and make the strongest magnets. It is equally strong at the north pole when compared with the south pole. midway between each side of the magnet. (NdFeB) was developed in the early 1980s. If you place an object in a magnetic field, it will be affected, and the effect will happen along field lines. However, bronze is generally not magnetic. But when stacked and twisted, graphene develops a rare form of magnetism, new research finds. With a strength of up to 34 tons, a niobium magnet is the largest magnet known to man. enter this region, they will be attracted to the magnet. 5million award from the Department of Energy, which Lewis’ team will use to identify new, super-strong magnetic materials. We can produce custom magnets that withstand high temperatures. The entire magnet. SmCo Magnet. 5. Neodymium magnets are considered part of the family of rare earth magnets because their main element is the rare earth element, neodymium. These magnets are actually made of an alloy of neodymium, iron, and boron. 400. Due to the magnetic field, a magnet can attract ferromagnetic materials (e. Titanium strength is . 18 for 10 to 99 items and save 20%. The magnetic moments of its electrons all point in the. It is also the. carbon steel. Sheet magnet is a thin layer of plastic, embedded with millions of magnetized steel particles that act like tiny magnets. It represents the strongest point on the magnet's Demagnetization Curve, or. g. 5 T record in 2019 was actually reached when the magnet failed immediately in a quench. 7: Magnetic Properties of Atoms and Ions. What is the strongest magnet strength? Bar magnets are the weakest magnets because their poles are the weakest component. The strongest available permanent magnets consist of compounds of neodymium, a rare earth metal with atomic number of 60 and symbol of Nd. Generally speaking, the higher the grade, the. Magnetic Grading: Neodymium magnets come in different grades, such as N35, N42, N52, and more. 10; 3 Material Traits. 22 tesla (T), the highest steady magnetic field by a working. They call the new material the strongest known for its given density. Bonded ndfeb magnets is avilable here. The added power (with reduced bulk) could help enable. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron. Tungsten – With the highest tensile strength of any. It's important to recognize that there are two important properties that all physical materials have: strength, which is how. Nylon is also UV-, wear-, and rot-resistance, making it the best option for pulleys, towing, or anchor lines. Magnetic particle testing is a nondestructive testing method for detecting discontinuities in magnetizable material. We are most familiar with these materials as they exhibit the strongest magnetic behaviour. Researchers from North Carolina State University have developed a material using magnesium which is light. Magnetic separation can be a difficult, frustrating and even dangerous process if proper technique and safety are not considered. Due to their high magnetic strength and relatively low-cost, neodymium magnets are. [51] The Earth's field originates in its core. The researchers were able to generate a magnetic field of 1,200 teslas. The most common grades of Neodymium magnets are N35, N38, N40, N42, N45, N48, N50,. Current is the movement of electrons, and electrons are what make materials magnetic. method can. Magnetism is a force of nature produced by moving electric charges. What these magnets all have in common is that they are hard magnetic materials. Wurtzite Boron Nitrite. Neodymium cup magnets provide much stronger holding power than ceramic cup magnets. 5. Ferromagnetism is the strongest type and is responsible for this common phenomenon. Here is a look at these three types of magnetism, examples of. The magnetic poles of the astronomical bodies are a special case of magnets. 8 percent pure, and the relative permeability of soft iron with 99. If. If you’re gearing up for some serious off-road adventures, the Rokform magnetic phone case might be more your speed. Magnets exert forces and torques on each other through the interaction of their magnetic fields. For a reference point, Earth's magnetic field — invisible forces that help compasses operate and birds navigate — is 0. Permanent magnets are limited by the structure of the material. Every magnet has a north pole and a south pole. Magnetic poles of astronomical bodies like the Earth is a special case of magnets, so let’s discuss these:. 3 Modifier list; 2 Materials pre MC 1. The strongest human-made magnetic fields are about a few hundred thousand gauss. The Mujjo Magnetic Wallet holds up to three cards and is crafted from a vegetable-tanned Ecco leather that only gets better with age. Rare earth Neodymium magnets are the most common type of magnets used in magnet fishing. Geomagnetic storms are disturbances to Earth's magnetic field caused by solar material from coronal mass. Magnetic field produced by a solenoid (coil of wire). Ferromagnetism is the strongest type and is responsible for this common phenomenon. The Insight-HXMT team has recently discovered a cyclotron absorption line with an energy of 146 keV in the neutron star X-ray binary Swift J0243. Depending on the grade of the magnet, the heat will demagnetize the magnet. A temporary magnet, or. But Neodymium is not the only hard magnet material. 1 Materials. Magnets, or the magnetic fields created by. electromagnet. midway between each side of the magnet. 9 UnnaturalMagnetic anisotropy means that the magnetic properties depend on the direction in which they are measured. Remanence, measured in Gauss, is the magnetism left in the magnet after removing the external magnetic field. When a diamagnetic substance is placed in a watch glass on the pole pieces of a magnet the liquid accumulates on the sides causing a depression at the center which is the strongest part of the field. Iron (d) Used to find out direction: 5. Many common materials such as water, wood, plants, animals, diamonds, fingers, etc. 14 Teslas, and we can say that it is 900 thousand times that of. They form closed loops that continue all the way through a magnetic material. A magnetic alloy is a combination of various metals from the periodic table such as ferrite that contains at least one of the three main magnetic elements: iron (Fe), nickel (Ni), or cobalt (Co) etc. at either end or pole of the magnet. 1 Answer. On August 12, the hybrid magnet of the Steady High Magnetic Field Facility (SHMFF) in Hefei, China, produced a steady field of 45. Nov 10, 2015. A rare earth magnet is a magnet made from one of the rare earth elements (of which there are 17) in the Lanthanide series of metals in the periodic table. Two objects containing charge with the same direction of motion have a magnetic attraction force between them. In this film, presenters Cayana and Louise test some magnets to find out which one is strongest. A magnetic field is produced by moving electric charges and intrinsic magnetic moments of elementary particles associated with a fundamental quantum property known as spin. This means, that the power is stronger than the combined power of more than 4000 strong refrigerator magnets. Hard-magnetic materials require high magnetic fields to reach saturation. c. The magnetic field generated by any magnet is always strongest at either pole. Stats may vary based on the part that they are applied on - for example, tool rods have a handle modifier that multiplies the total durability of the tool; handle modifier depends on the material used. Paul Sutter - Jun 17, 2022 10:45 am UTC Enlarge / Artist's conception of a magnetar. This super magnet has a magnetic field of 44. Some are more magnetic than others. Mark the boundaries with appropriate signage. e. Vital Statistics. It includes 23 standard screwdrivers, 60 screwdriver bits, seven precision screwdrivers, 14 socket heads, 16 Allen wrenches, and one ratchet handle. The weak force. The magnetic field of a bar magnet is strongest at either pole of the magnet. "It was the strongest display of the aurora that I. When freely swinging, one end of a magnet always points east. The field is generally strongest in a dark area (umbra), but sometimes stronger fields are found in non-dark regions, such as a penumbra and a light bridge. Most of our magnets are grade N40 so if they are heated above 80˚C or 176˚F they will demagnetize and lose their strength. To reach this record, Sergei Zherlitsyn and his colleagues at the High. the depth of the magnetic field in the part. However, applying a layer of water-based primer is a good idea when using the paint on new absorbent drywall. High field research answers fundamental questions on materials and new technology, energy, health, and the environment, helping to create a brighter future . Spread the love. For this reason, scientists cannot build a machine that creates a magnetic field stronger than 500,000 Gauss and survives longer than a fraction of a second. A neodymium magnet can be used in a variety of environments because it can be found in a variety of sizes, shapes, and grades. The pole showing the strongest magnetic field is the general direction of attachment of a ferromagnet; Liquification of the ferromagnetic substance results in abrupt temperature changes thus causing it to lose its magnetic properties entirely. made from one of the strongest magnetic materials commercially available will measure a maximum of 6,250 Gauss on the magnet’s surface and considerably less as. The strongest grade of magnetic material currently available is neodymium, however each type of magnetic material has its advantages. Multiple Choice. You can demonstrate the science of magnets at home, by producing and testing the strength of a magnetic field. Temporary. Magnetic fields are three-dimensional and resemble a bubble. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. Neodymium is not just any magnetic material; it's the mightiest of them all. Pieces of lodestone were actually used in the very first magnetic compasses ever made. BEST FOR ELECTRICIANS: Hurricane 13-Piece 1000V Insulated. Ferromagnetic materials can be influenced by translational (linear) and torque (rotational) forces exerted by the static magnetic field of the magnetic resonance imaging (MRI) scanner. The hybrid magnet managed to produce a field measuring 45. There are composite materials that are magnetic, usually referred to as ferrous material, though they are not as strong as. Depending on where you have your sources from, there are different facts on this subject on the. A magnet is a material or artificial setup that can produce a magnetic field around it. Like all types of steel, this alloy is highly impact resistant and scores mid-range on the Mohs scale. A magnetosphere is the region around a planet dominated by the planet’s magnetic field. Of the more commonly available magnets, only rare-earth magnets such as neodymium and samarium-cobalt are stronger. While copper is an excellent conductor, it isn’t magnetic. The strongest permanent magnets in the world are neodymium (Nd) magnets, they are made from magnetic material made from an alloy of neodymium, iron and boron to form. density. e. Environment. The magnetic field isn't. Nickel is the third of the “big three” ferromagnetic metals. Spinning like tops, the electrons circle the nucleus, or core, of an atom. If you had a fixed volume (x millimetres cubed) of neodymium magnet 'material' of the equivalent strength of magnetism, what shape would produce the strongest poles. The laboratory’s magnets are created by running an electric current through a wire wrapped around a magnetic material. The north-seeking pole of such a magnet, or any similar pole, is called a north magnetic pole. The magnetic material of our super-strong magnets is an alloy consisting of neodymium, iron and boron (NdFeB). A group of materials physicists from Twin Cities, Minnesota, led by Jian-Ping Wang have found a material comprising 16 iron atoms and two of nitrogen is approximately 18% more magnetic than the. They learned the star is extremely magnetic, at 43,000 gauss. Iron is, in fact, the strongest ferromagnetic metal. This magnetic force is invisible but is responsible for the. All of these metals are nonmagnetic (not attracted to a magnet) except:On June 22, 2011, the Helmholtz-Zentrum Dresden-Rossendorf set a new world record for magnetic fields with 91. 0005 x 10-5 for N 2 and -0. Contents. The magnet is as powerful as a previous structure 40 times its size. Kinds of anisotropy: a) Crystal anisotropy (magnetocrystalline anisotropy) b) Shape anisotropy c) Stress anisotropymagnetic field, a vector field in the neighbourhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable. Diamagnets repel, and are repelled by a strong magnetic field. Including products made from N42 grade and N52 grade Neodymium magnet material, many of these magnets have unbelievable magnetic performances. The previous record was set in 1999. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials and attracts or repels other magnets. This maximizes the permeance of the core. The formation mechanism of such strong fields outside umbrae is still puzzling. There are various kinds of magnetism, out of which ferromagnetism is the strongest type. False, iron. It is used to make neodymium magnets which are still the strongest permanent magnets on the market today. There are several material choices including Neodymium Magnets (NdFeB or Rare Earth ), Alnico Magnets, Samarium Cobalt (SmCo )or Ferrite Magnets (Ceramic). Neodymium and samarium—two of the 17 rare earth elements—are ferromagnetic, meaning that they have inherent magnetic properties and can be magnetized. Antiferromagnetism. 2. 5 Flammable End Steel 50 0. • In review: soft magnetic materials are evaluated by: Hcb, area within the hysteresis loop,D. SmCo magnet is another kind of rare. Material: Neodymium. In contrast with this behavior, diamagnetic materials are repelled by magnetic fields and form induced magnetic fields in the direction. As the name suggests, magnets made of different rare earth elements. Neodymium. A magnetic field is the region around a magnet where a force acts on another magnet or on a magnetic material. 3. Hang the bar vertically and hit it repeatedly with a hammer. This is known as "training" the magnet, and involves a type of material memory effect. But some substances are strongly magnetic, which means most of their electrons spin in the same direction. 95 percent purity is a massive 200,000. The magnet is a steel in which the domains. MPI’s Hi-G Tube provides comparable pull values to any competitive “strongest on the market” non-thin-walled tubes, without. It is made up of two poles that are connected by a bar of magnet material. 3. Magnetic fields are believed to be generated preferentially by dynamo actions. False - The area between the poles of a magnet has the strongest effect. Neodymium magnets are over 10x stronger than the strongest ceramic magnets. MADE WITH RARE EARTH neodymium, the strongest permanent magnetic material available. In addition, there are other variations such as Electromagnets, Flexible magnets and Bonded magnets. Its chemical formula is Nd2Fe14B. NdFeB Magnet. It forms an integral part of the earth’s core and imparts its magnetic properties to our planet. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. As detailed in a paper recently published in the Review of Scientific Instruments, the researchers produced the. As the battery weakens, the current also weakens. RFQ Now!electromagnet: A magnet made of an insulated wire coiled around an iron core (or any magnetic material such as iron, steel, nickel, cobalt) with electric current flowing through it to produce magnetism. Electric forces exist among stationary electric charges; both electric and magnetic forces exist among. Developed in the 1970s. Alnico magnets are stronger and more. Ceramic magnets are strong, and work well for most experiments. A neodymium-iron-boron magnet is the strongest magnet in the world, with a strength of up to 34 tons. Previously, N52 grade neodymium magnets were the strongest magnets available. C) It is the process in which warm material gets even warmer and cool material gets even cooler. A magnetic field is the area around a magnet where a force is exerted on certain objects. A COMPARISON OF MAGNETIC MATERIALS – AT A GLANCE 1 - Neodymium iron boron (NdFeb). UPGRADE PICK: TACKLIFE. In other words, the density of field lines indicates magnetic field strength. All magnets have north and south magnetic poles. The number comes from an actual material property, the Maximum Energy Product of the magnet material, expressed in MGOe (Mega Gauss Oersteds). Magnetically hard materials are used to create permanent magnets made from alloys generally consisting of varying amounts of iron, aluminium, nickel, cobalt and rare earth elements samarium, dysprosium and neodymium. force is strongest near the magnet's poles. Neodymium magnets are known as the strongest magnet material available and have the highest holding strength to these metals. As one of the rarest materials in the world, wurtzite boron nitrite is one of the strongest materials on this list. A new high-temperature superconducting magnet has reached 20 teslas. Flexible (Sheet and Tapes). All sheet magnet cuts easily to any size or shape with scissors or a shop knife and steel straight edge. And the strongest magnetic field of a permanent magnet is about 8,000 gauss. 25 to $1. Neodymium magnets are sensitive to heat. What is the difference between a permanent magnet. 1 pt. The lab's 41. The strongest permanent magnets are known as neodymium magnets and are made from an alloy of neodymium, iron and boron. Because the diamagnetic effect is. If you want to know more about NdFeB magnets, we advise you to visit Stanford Magnets for more information. The weak force, also called the weak nuclear interaction, is responsible for particle decay. Magnetic field lines. Neodymium magnets come with an incredible magnetic field. A magnet grade is a good measure of the strength of a magnet. SmCo Magnet. All of these metals are nonmagnetic (not attracted to a magnet) except: On June 22, 2011, the Helmholtz-Zentrum Dresden-Rossendorf set a new world record for magnetic fields with 91. Magnetic field lines bunch together where the magnetic field is strongest. 2. The south-seeking pole, or any pole similar to it, is called. Tolerance: All The Dimensions Are +/-0. 22 Tesla. Ferrites or ceramic magnets: These are like those used in refrigerator magnets and elementary-school science experiments. For example, the poles of the bar magnet shown in. Scientists in China have set a new world record for the strongest steady magnetic field ever generated on Earth. D) It is the process in which a liquid separates. Who found the NdFeB magnet? In. BEST BANG FOR THE BUCK: OP 12 PCS Magnetic Screwdriver Sets. In order to really appreciate how unbelievable 1,200 teslas is, the Earth’s natural magnetic field is one twenty thousandth of tesla! The strongest permanent magnets in the world are neodymium (Nd) magnets, they are made from magnetic material made from an alloy of neodymium, iron and boron to form the Nd 2 Fe 14 B structure. Make sure that there is no other magnetic material nearby. otherwise known, is the strongest type of permanent magnet having replaced more traditional types of magnets in most commercial operations. 002in With Coating. A magnetic north pole will attract the south pole of another magnet, and repel a north pole. Cobalt. Piece of metal (a nail, paperclips, coin, etc) Pen and. , materials that can be magnetized by an external magnetic field and remain magnetized after the external field is removed). The magnetic properties of the various grades of neodymium magnets are adjusted by using varying amounts of rare earth elements in the alloy mixture, with each element adjusting the characteristics of the material in a different way. Ferrofluid on a glass plate displays the strong magnetic field of the neodymium magnet underneath. We will focus specifically on the strongest rare earth magnets available, neodymium magnets (NdFeB) and samarium cobalt (SmCo) magnets. 1. a 2 mm thick coiled wire with two loops. 5. 5 °F). 3. 4 Tesla resistive magnet is the strongest DC (continuous-field) resistive magnet in the world, and the 25 Tesla Keck magnet has the highest homogeneity of any resistive magnet. There are several material choices including Neodymium Magnets (NdFeB or Rare Earth ), Alnico Magnets, Samarium Cobalt (SmCo )or Ferrite Magnets (Ceramic). Paramagnetic. The ROBLOX. This huge relative permeability is why iron is the best. It is equally strong at the north pole compared with the south pole. It also occurs in gadolinium and a few other rare-earth elements.