Samarium cobalt magnets arc group.jpeg. Samarium Cobalt magnets are part of the Rare Earth group of permanent magnets. They have excellent resistance to corrosion and are often used in automotive, marine and medical applications. Samarium Cobalt Magnets have the highest resistance to demagnetisation and outstanding temperature stability over a wide temperature range.

Samarium Cobalt (SmCo) magnets are rare earth magnets known for their strong magnetic properties, resistance to demagnetization, and high-temperature capabilities. They were invented in the 1970s and have since found diverse applications in various industries. The primary advantage of SmCo magnets lies in their ability to …

Samarium cobalt magnets arc group.jpeg. Samarium cobalt magnets are part of the rare earth family of magnets and have a …

Samarium cobalt magnets can operate in temperatures up to 300°C. The temperature coefficient for Samarium Cobalt is approximately -0.04% per degree C rise in temperature and this loss is fully recovered if the maximum operating temperature is not exceeded. Because of their thermal stability, samarium cobalt magnets are the magnet of choice for ...

Comparatively, SmCo 5 has lower maximum magnetic energy product and lower max working temperature than Sm 2 Co 17.While the mechanical properties and ductility of SmCo 5 are slightly better than Sm 2 Co 17, and it is easier to be machined.. The customers who purchase non-magnetic SmCo magnets and magnetize themselves may need to …Samarium-cobalt magnets, also known as SmCo magnets, are a type of rare-earth magnet that offers a unique combination of high magnetic strength and excellent temperature stability. These magnets are composed of samarium and cobalt, with small amounts of other elements like iron, copper, and zirconium.

Shortcomings of Samarium Cobalt include, as with all rare earth-based magnets, its high cost and its lack of toughness. Samarium Cobalt is difficult to work with: it must be handled with care to prevent chipping. Customers are usually advised to have Samarium Cobalt magnets tumbled (honed) to create a slight radius (0.004” to 0.007”) on the ... A samarium–cobalt (SmCo) magnet, a type of rare-earth magnet, is a strong permanent magnet made of two basic elements: samarium and cobalt . They were developed in the early 1960s based on work done by Karl Strnat at Wright-Patterson Air Force Base and Alden Ray at the University of Dayton. Apr 7, 2020 · Marlin was intrigued by this and soon learned specifically that the focus was on samarium cobalt. Marlin then decided to break out on his own to pioneer the development and commercialization of the world’s first samarium cobalt magnets. In 1970, this work started in an old milk house on a Kreider dairy farm near Manheim, Pennsylvania. Abstract and Figures. Recycling of samarium-cobalt (SmCo) magnets is essential due to the limited resources of the mentioned metals and their high economic importance. The ionic liquid (IL ...Magnets. An important use of samarium is samarium–cobalt magnets, which are nominally SmCo 5 or Sm 2 Co 17. They have high permanent magnetization, about 10,000 times that of iron and second only to neodymium magnets. However, samarium magnets resist demagnetization better; they are stable to temperatures above 700 °C (1,292 °F) (cf. 300 ... Samarium Cobalt rare earth magnets are often used in high temperature applications needing high magnetic performance and where magnetic stability over a wide range of temperatures is important. Dura can help optimize performance and cost with SmCo magnets in grades from 16 to 35 MGOe (1:5 and 2:17) and temperatures up to …Sm2Co17 magnet is composed of samarium cobalt alloy, and the SmCo ratio is 2:17, that is, 2 samarium atoms and 17 cobalt atoms. It also contains other elements, such as iron, copper, zirconium and hafnium, but the quantity is very small. The magnetic energy product of this property is higher, up to 32MGOe, and the reversible …Corrosion resistance of samarium cobalt magnets. Since most grades of samarium cobalt magnets contain little or no iron, which gives them excellent corrosion resistance, neodymium magnets typically contain 60-75% iron. Therefore, SmCo magnets generally do not require electroplating. 4. Magnetic properties of samarium cobalt …Showing 1–12 of 321 results. Neodymium arc magnets, or neodymium segment magnets, can be seen as a part of neodymium ring magnets or neodymium disc magnets. They are made of high-quality neodymium magnets containing the elements neodymium, iron, and boron. NdFeB magnets are permanent magnets and the most widely used type of rare …

Samarium Cobalt Magnets. As the first commercially viable rare earth permanent magnet material, Samarium Cobalt (Sm-Co) is considered to still be the premium material for many high performance applications. Formulated in the 1960s, it came as a revolutionary product, initially tripling the energy product of other materials available at the time.A samarium–cobalt (SmCo) magnet, a type of rare-earth magnet, is a strong permanent magnet made of two basic elements: samarium and cobalt. They were developed in the early 1960s based on work done by Karl Strnat at Wright-Patterson Air Force Base and Alden Ray at the University of Dayton. In … See moreJul 12, 2013 · Samarium provides carbon-arc lighting for the motion picture industry. Samarium forms a compound with cobalt (SmCo 5 ), which is a powerful permanent magnet with the highest resistance to ... Samarium is alloyed with Cobalt –a transition metal. And Neodymium is alloyed with Iron –a transition metal. So each magnet is the result of a rare earth metal and a transition metal bonding together. The Neodymium magnet also has a very small amount of Boron, which makes it different from a SmCo magnet since NdFeB uses three major alloying ...

As part of the rare earth group of permanent magnets, samarium cobalt SmCo magnets typically fall into two families of materials. They include rare earth Sm1Co5 and Sm2Co17 and are referred to as 1:5 and 2:17 materials. There are three different manufacturing processes: sintered SmCo magnet, bonded SmCo magnet, and injection moulding SmCo magnet.

Code: 39021. $14.25. for 1 to 9 items. $11.40 buy 10 to 99 items and save 20%. $9.95 buy 100+ items and save 30%. Add To Cart. Prices are GST Incl. Volume pricing available on request. Samarium Cobalt Magnets are excellent resistant to corrosion and are often used in auto, marine and medical applications.

Samarium-144, samarium-150, samarium-152, and samarium-154 are stable, but the other three naturally occurring isotopes are radioactive alpha emitters. However, a total of 34 (excluding the nuclear isomers) radioactive isotopes of samarium have been characterized, with masses ranging from 128g to 165g.Arc Segment ; Rubber Coated Magnets ; Pot & Clamping ; Threaded Hole Magnets ; Shop By Size . View All Shop By Size; Magnet Diameter/Width: 1/32" 1/16" 1/8" 5/32" 3/16" 1/4" 9/32" 5/16" ... Samarium Cobalt magnets - Coatings and Adhesives; What are Samarium Cobalt magnets? Alnico Magnet Information; Flexible Magnet Information; Educational ...May 11, 2023 · According to the analysis shared by our research analyst, the Samarium Cobalt Magnets market is likely to expand at a CAGR of around 7.7% during the forecast period (2023-2030). In terms of ... The global samarium cobalt magnets market size reached US$ 574.8 Million in 2023. Looking forward, IMARC Group expects the market to reach US$ 742.8 Million by 2032, exhibiting a growth rate (CAGR) of 2.8% during 2024-2032. The increased demand for SmCo magnets in high-temperature application due to their exceptional thermal stability ... Samarium Cobalt Magnets - Strong, High Temperature Magnets . View as List Grid Rapid List Ordering. Items 11-19 of 19. ... Arc Magnets 14 items; Bars 8 items; Blocks 84 items; Ceramic / Ferrite 21 items; Countersink 18 items; Cubes 22 items; Cylinders 46 items; Discs - Small 112 items; Discs - Large - 1 Inch+ 22 items;

Samarium-Cobalt range. Rare earth alloys first appeared in the field of permanent magnets in the 1970s. The two main characteristics that led to the interest in these alloys were their high energy density (BHmax) and their superior demagnetisation resistance (HcB and HcJ). The binary samarium-cobalt compounds used in industry are SmCo5 and Sm2Co17.Samarium cobalt magnets are remarkably strong permanent magnets. They are resistant to high temperatures and are most efficient at temperatures between 523 K and 853 K. In addition, samarium cobalt magnets are resistant to corrosion, oxidation, and demagnetization. The Curie temperature of these magnets is 1098 K.Samarium Cobalt. Known as Rare Earth magnets, Samarium Cobalt (SmCo) are alloys of the Lanthanide group of elements. SmCo magnets have been commercially available since the early 1970’s, first as a 1-5 Type alloy, and later with the introduction of the 2-17 type. Both alloys offer outstanding thermal stability and excellent corrosion ...Comparatively, SmCo 5 has lower maximum magnetic energy product and lower max working temperature than Sm 2 Co 17.While the mechanical properties and ductility of SmCo 5 are slightly better than Sm 2 Co 17, and it is easier to be machined.. The customers who purchase non-magnetic SmCo magnets and magnetize themselves may need to …Samarium Cobalt Magnet Information. Samarium cobalt magnets are part of the rare earth family of permanent magnets along with neodymium magnets. While they aren’t as strong as neodymium magnets, they have two distinct advantages over their neodymium cousins. They are effective over a wider range of temperatures and are much more …Find a huge range of high quality samarium magnets for all uses at Jobmaster Magnets. Browse the catalogue & make an order today. Welcome visitor, you can login or create an account. Wish List (0) My Account Cart Checkout. ... Rare Earth Samarium-Cobalt Magnet - Disc Diameter x Thickness: 0.750" x 0.250" Max.. $6.15 . Add to Wish List. Add to ...Samarium cobalt magnets certainly come into their own at high operating temperatures and will begin to outperform special high-temperature neodymium magnets from 150°C. While not as powerful as other rare-earth magnets such as neodymium magnets, they maintain their magnetism in temperatures much higher than the threshold for neodymium …Sintered SmCo magnet is one of the two types of rare earth magnet, which is made of an alloy of samarium and cobalt. It is the second strongest powerful of magnet, but has better temperature stability (maximum working temperature is between 250 and 350 °C and the curie temperatures is from 700 to 800 °C).Samarium cobalt (SmCo) magnets are powerful rare-earth magnets made from two basic elements — samarium and cobalt. SmCo magnets can resist corrosion and withstand low or high temperatures. Factors like the magnetic field, demagnetization, erosion and oxidization can impact a samarium cobalt magnet’s performance over time. SmCo …Samarium forms a compound with cobalt (SmCo 5) which is a powerful permanent magnet with the highest resistance to demagnetization of any material known. Samarium oxide (Sm 2 O 3 ) is added to glass to absorb infrared radiation and acts as a catalyst for the dehydration and dehydrogenation of ethanol (C 2 H 6 O). Magnets. An important use of samarium is samarium–cobalt magnets, which are nominally SmCo 5 or Sm 2 Co 17. They have high permanent magnetization, about 10,000 times that of iron and second only to neodymium magnets. However, samarium magnets resist demagnetization better; they are stable to temperatures above 700 °C (1,292 °F) (cf. 300 ... SmCo 5 -type permanent magnets have good temperature characteristics, such as T c of 750 °C, α of −0.045 %·°C −1, β of −0.300 %·°C −1, and the application temperature can reach 250 °C. However, the magnetic parameters of SmCo 5 -type permanent magnet are usually low, i.e., ( BH) max at room temperature of 160 kJ·m −3.Samarium Cobalt Magnets in the Military. Compared with the NdFeB magnet, the samarium cobalt magnet has more excellent high-temperature performance and is widely used in electronics, electrical machinery, military, aerospace, and other fields. In this article, we will take a look at the uses of samarium cobalt magnets in the military.. In modern …Stanford Magnets is a leading magnet supplier across the world, who has been involved in R&D, manufacturing, and sales of permanent magnets and non-permanent magnets since the 1990s. It provides customers with high-quality ceramic magnets, Samarium Cobalt magnets, AlNiCo magnets, and neodymium magnets at a very competitive price.Samarium is a Block F, Group 3, Period 6 element. The number of electrons in each of Samarium's shells is 2, 8, 18, 24, 8, 2 and its electron configuration is [Xe]4f 6 6s 2. The samarium atom has a radius of 180.pm and its Van der Waals radius is 229.pm. In its elemental form, CAS 7440-19-9, samarium has a silvery-white appearance. Samarium Cobalt Cylinder Magnets (SmCo) - 6mm x 8mm. Code: 39025. 1 Review. $15.55 for 1 to 9 items. $13.12 buy 10 to 99 items and save 16%. $11.79 buy 100+ items and save 24%.samarium (Sm), chemical element, a rare-earth metal of the lanthanide series of the periodic table. Samarium is a moderately soft metal, silvery white in colour. It is relatively stable in air, slowly oxidizing to Sm 2 O 3. It rapidly dissolves in diluted acids —except hydrofluoric acid (HF), in which it is stable because of formation of a ...

Active Member. Mar 15, 2014. #2. Neodymium magnets are stronger, but cheaper and not well integrated. The best is Samarium Cobalt; these were used until AN wanted to sell Infinity. Although some models designed with the Neodymium magnets in the EMIM are pretty good, and there is not much trouble with these magnets in the EMIT.Samarium-cobalt magnets, also known as SmCo magnets, are a type of rare-earth magnet that offers a unique combination of high magnetic strength and excellent temperature stability. These magnets are composed of samarium and cobalt, with small amounts of other elements like iron, copper, and zirconium. PMID: 7771362. DOI: 10.1016/s0889-5406 (95)70100-1. The purpose of this study was to determine whether the application of either samarium cobalt magnets or pulsed electromagnetic fields could increase the rate and amount of orthodontic tooth movement observed in guinea pigs. In addition, the objective was to evaluate the effect of a …Samarium cobalt magnets (SmCo magnets) have a Curie temperature* of over 800°C, which is higher than that of Neodymium magnets (NdFeB magnets). This superior heat re-sistance enables reflow soldering for the mounting process. DM-30L DM-30S NdFeB 35.0% 0 50 100 150 200 250 300 350 400 45.0% 55.0% 65.0% 75.0% 85.0% 95.0% Temperature (ºC) Samarium Cobalt Magnets - Strong, High Temperature Magnets . View as List Grid Rapid List Ordering. Items 11-19 of 19. ... Arc Magnets 14 items; Bars 8 items; Blocks 84 items; Ceramic / Ferrite 21 items; Countersink 18 items; Cubes 22 items; Cylinders 46 items; Discs - Small 112 items; Discs - Large - 1 Inch+ 22 items;This chapter reviews the development of SmCo-type magnets over the last …

Samarium Cobalt block magnets are preferred for specialised applications such as high-performance motors. This is because other strong permanent magnets like Neodymium Block Magnets do not perform well in high temperatures. If a more powerful magnetic block is needed and temperature stability is not a concern, see our Rare Earth Blocks.. …More information: Bhaskar Das et al. Anisotropy and orbital moment in Sm-Co permanent magnets, Physical Review B (2019).DOI: 10.1103/PhysRevB.100.024419Samarium Cobalt Magnets have a high working temperature of 350 ℃. When the working temperature exceeds 180 ℃, its maximum magnetic energy product and stable temperature are superior to NdFeB magnetic materials. SmCo Magnet does not require electroplating because it is not easily corroded and oxidized. Samarium Cobalt Magnets are widely used ... Difference between samarium cobalt and Ndfeb magnets in composition and composition; Samarium cobalt magnet: It is composed of samarium (Sm), cobalt (Co) and other metal rare earth materials by matching, melting into alloy, after grinding, pressing, sintering made of a magnetic material, currently mainly SmCo5 and Sm2Co17 two …Samarium Cobalt Magnets - Strong, High Temperature Magnets . View as List Grid Rapid List Ordering. Items 11-19 of 19. ... Arc Magnets 14 items; Bars 8 items; Blocks 84 items; Ceramic / Ferrite 21 items; Countersink 18 items; Cubes 22 items; Cylinders 46 items; Discs - Small 112 items; Discs - Large - 1 Inch+ 22 items;Samarium Cobalt Magnets - Strong, High Temperature Magnets . View as List Grid Rapid List Ordering. Items 11-19 of 19. ... Arc Magnets 14 items; Bars 8 items; Blocks 84 items; Ceramic / Ferrite 21 items; Countersink 18 items; Cubes 22 items; Cylinders 46 items; Discs - Small 112 items; Discs - Large - 1 Inch+ 22 items;Gradually, Sm2Co17 magnets took the place of SmCo5 magnets because of their stronger energy and higher work temperatures. Such magnets have two samarium atoms along with seventeen cobalt atoms. The 2:17 grades of samarium cobalt magnets contain approximately 33-37% samarium and 12-14% cobalt, and you can find praseodymium …Upon cooling on 14.8K the metal transform to antiferromagnetic state (magnetic movement related to the spin of electrons). Samarium chemical symbol is Sm. Its atomic number is 62 and atomic weight is 150.36. The melting point of samarium is 1072 C and boiling point is 1900. Samarium is slowly oxidized at room temperature. Samarium-cobalt offers a balance of strength and temperature resistance. Strong and compact, these rare earth magnets resist corrosion and can handle higher temperatures than other rare earth magnets.. Warning: Maximum pull ratings are based on direct contact with rust-free and unpainted iron plate. Variations in material condition will significantly …Magnets. Rare Earth. Neodymium magnets (Nd-Fe-B) are composed of neodymium, iron, boron and a few transition metals. Samarium cobalt magnets (SmCo) are composed of samarium, cobalt and iron. These neodymium magnets are extremely strong for their small size, metallic in appearance and found in simple shapes such as rings, blocks and discs.Stanford Magnets is a leading magnet supplier across the world, who has been involved in R&D, manufacturing, and sales of permanent magnets and non-permanent magnets since the 1990s. It provides customers with high-quality ceramic magnets, Samarium Cobalt magnets, AlNiCo magnets, and neodymium magnets at a very competitive price.Stanford Magnets is a leading magnet supplier around the world, who has been involved in R&D, manufacturing, and sales of magnets since the 1990s. It provides customers with high-quality rare earth permanent magnetic products, and other non-rare earth permanent magnets at a very competitive price. Samarium cobalt magnets are widely used to ...Samarium cobalt (SmCo) magnets are strong permanent magnets made of samarium, cobalt, and other minor elements. It is known for its high magnetic strength and good temperature stability. Samarium cobalt magnets are generally weaker than neodymium magnets at room temperature, but they perform reliably in extreme temperatures when …Now, let’s delve into the unique characteristics and applications of Samarium Cobalt, Alnico, Neodymium, and Ferrite. 1. Samarium Cobalt (SmCo) Properties: High Magnetic Strength: Samarium Cobalt magnets exhibit exceptional magnetic strength, making them suitable for applications requiring powerful magnets.Adams Magnetic Products. Locations Manufacturer*, Distributor $25 - 49.9 Mil 1950 50-99. Manufacturer & distributor of magnetic assemblies including samarium cobalt magnets in disc & rectangular shapes. Samarium cobalt discs are available in & 0.118 in. to 1.500 in. dia. & 0.118 in. to 0.500 in. thickness.As part of the rare earth group of permanent magnets, samarium cobalt SmCo magnets typically fall into two families of materials. They include rare earth Sm1Co5 and Sm2Co17 and are referred to as 1:5 and 2:17 materials. There are three different manufacturing processes: sintered SmCo magnet, bonded SmCo magnet, and injection moulding SmCo magnet. Aug 16, 2021 · 6 Global Samarium Cobalt Magnet Industry 6.1 Market Overview 6.2 Market Performance ... 9.3.7 Hangzhou Permanent Magnet Group (HPMG) 9.3.8 Thomas & Skinner Inc. 10 Samarium Cobalt (SmCo) Magnets ... Magnets. An important use of samarium is samarium–cobalt magnets, which are nominally SmCo 5 or Sm 2 Co 17. They have high permanent magnetization, about 10,000 times that of iron and second only to neodymium magnets. However, samarium magnets resist demagnetization better; they are stable to temperatures above 700 °C (1,292 °F) (cf. 300 ...

Samarium Cobalt (SmCo) magnets, of the Rare Earth class, have been available since the early 1970's. They are made from the alloys samarium and cobalt. These magnets possess very high magnetic properties and excellent thermal stability, while remaining resistant to corrosion. These characteristics make SmCo magnets ideal for applications ...

Find a huge range of high quality samarium magnets for all uses at Jobmaster Magnets. Browse the catalogue & make an order today. Welcome visitor, you can login or create an account. Wish List (0) My Account Cart Checkout. ... Rare Earth Samarium-Cobalt Magnet - Disc Diameter x Thickness: 0.750" x 0.250" Max.. $6.15 . Add to Wish List. Add to ...

Samarium cobalt magnets are much stronger than ‘ordinary’ magnets. Keep a safe distance (at least 20cm) between the magnets and all objects that can be damaged by magnetism. Items such as mechanical watches, heart pacemakers, CRT monitors and televisions, credit cards, diskettes and other magnetically stored media such as video …Samarium Cobalt Magnets. As the first commercially viable rare earth permanent magnet material, Samarium Cobalt (Sm-Co) is considered to still be the premium material for many high performance applications. Formulated in the 1960s, it came as a revolutionary product, initially tripling the energy product of other materials available at the time.SmCo magnets, a blend of samarium and cobalt, are valued for their high temperature resilience and come in various shapes suited for specific applications: 1. **Disc Magnets**: These thin, flat magnets are commonly used in sensors, meters, and control systems, especially where space is at a premium. 2. Jul 29, 2020 · Abstract Due to outstanding thermal stability and corrosion resistance, samarium–cobalt alloy is being used in rare earth magnet. So, this permanent magnet waste can be a potential source for rare earth metal samarium and critical metal cobalt. Recovery and reuse of Sm, Co from Sm–Co magnet waste can reduce the burden on primary resources and environmental issues related to primary ... ENGINEERED MAGNETIC SOLUTIONS. YOUR VISION. OUR EXPERTISE. As a world-renowned producer of rare earth magnets, Electron Energy Corporation and our team of experts excel at working closely with our customers to create custom solutions. Learn how we can help you find a solution to your challenges.A Detailed Guide on the Samarium Cobalt Magnet. Samarium cobalt (SmCo), is a member of the lanthanide group on the periodic table. It is a close relative of neodymium. Both of them are called rare-earth elements. They are used to manufacture powerful and permanent magnets. Element Samarium (Sm), Group 19, Atomic Number 62, f-block, Mass 150.36. Sources, facts, uses, scarcity (SRI), ... These include its use as a component in carbon arc lights in the movie industry, ... Recently developed samarium/cobalt (SmCo5) magnets have the highest resistance to demagnetisation of any material yet synthesised.Samarium is known to bond to alcohol molecules and has been proven to reduce its intoxicating effects. Samarium ignites readily in air at temperatures over 150°c and forms yellow coloured salts. Samarium has its main use in creating alloys with cobalt for headphones and small motors. Radioactive Samarium 153 is used in the treatment of cancers.

modern 45 70 lever action thumper v2dandd fighter weaponslowepercent27s kanawha city west virginiaqpdw Samarium cobalt magnets arc group.jpeg traducir ingles espanol audio [email protected] & Mobile Support 1-888-750-2639 Domestic Sales 1-800-221-2233 International Sales 1-800-241-2840 Packages 1-800-800-2577 Representatives 1-800-323-9098 Assistance 1-404-209-5404. The SMRS0005 Samarium Cobalt Ring Magnet (SmCo Ring Magnet) is made of high-performance 26M Sm2Co17, without other protective coatings. The dimension of this item is 10mm dia x 5mm thickness, magnetized through thickness. It can pull up to 2.65 lbs of steel. And the surface field is up to 3600 gausses. Ring Magnet is a common shape of SmCo …. bristerpercent27s chuck wagon parts manual Samarium Cobalt magnets can be used at cryogenic temperatures (i.e. towards absolute zero). How the magnet is used affects the working point of the magnet (shape, magnetic circuit, temperature, Samarium Cobalt magnets have better temperature coefficients than Neodymium so offer more stable fields etc). Samarium is a rare earth metal, with a bright silver luster, that is reasonably stable in air; it ignites in air at 150 ° C. Even with long-term storage under mineral oil, samarium is gradually oxidized, with a grayish-yellow powder of the oxide-hydroxide being formed. Three crystal modifications of the metal also exist, with transformations ... blakeley 8 piece upholstered sectionaltemple women The samarium-cobalt magnets are quite resistant to demagnetizing magnetic fields and do not need to be protected against corrosion. more information. Samarium-cobalt magnets (SmCo), like neodymium magnets, are rare earth magnets. The disc magnets are manufactured in two alloys: SmCo5: 36 % samarium content Sm2Co17: ... japanese mcdonaldgeneratrice champion New Customers Can Take an Extra 30% off. There are a wide variety of options. More information: Bhaskar Das et al. Anisotropy and orbital moment in Sm-Co permanent magnets, Physical Review B (2019).DOI: 10.1103/PhysRevB.100.024419Showing 1–12 of 321 results. Neodymium arc magnets, or neodymium segment magnets, can be seen as a part of neodymium ring magnets or neodymium disc magnets. They are made of high-quality neodymium magnets containing the elements neodymium, iron, and boron. NdFeB magnets are permanent magnets and the most widely used type of rare …Samarium Cobalt block magnets are preferred for specialised applications such as high-performance motors. This is because other strong permanent magnets like Neodymium Block Magnets do not perform well in high temperatures. If a more powerful magnetic block is needed and temperature stability is not a concern, see our Rare Earth Blocks.. …