Samarium cobalt magnets arc group.jpeg - 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.

 
The magnet is based on the rare-earth-cobalt compound RCo 5 , where R is samarium. Processing includes induction heat or arc melting, pulverizing to roughly domain size, compacting in hydraulic press in magnetic field to suitable shape and size, sintering, finishing, magnetizing, and stabilizing. . Leonardo

Samarium Cobalt magnet, also referred to as SmCo magnet, is produced by traditional powder metallurgy process and can be classified into SmCo 5 based and Sm 2 Co 17 based according to alloy composition. SmCo 5 and Sm 2 Co 17 are normally referred as the first and second generation of rare earth permanent magnetic material, respectively. Sm2Co17. Sm2Co17 is mainly made of samarium, cobalt, Cu, Iron and Zr. Its maximum energy product, (BH) max range is from 20-32 MGOe. It has extremely low reversible temperature coefficient of induction -0.030%/°C and can be used at temperatures up to 350°C. Sm2Co17 magnet is highly brittle and no malleability.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 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 cobalt or SmCo magnets have the highest working temperature of all available magnet alloys with stable magnet performance from -270 to 350 ⁰C. They are available in a wide range of shapes, sizes and grades. This makes SmCo the perfect choice for demanding applications in, for instance, the aerospace, medical and electronics industries.Jul 4, 2017 · A higher saturation magnetization obtained by an increased iron content is essential for yielding larger energy products in rare-earth Sm 2 Co 17-type pinning-controlled permanent magnets.These ... Samarium Cobalt (SmCo5 or Sm2Co17) and Neodymium-Iron-Boron (Nd2Fe14B) are both Rare Earth Magnets –the strongest known rare earth permanent magnets. They are called are rare earths, because Samarium and Neodymium are both found in the Lanthanide series of metals on the Periodic Table , so the properties and crystal structures of these …Samarium Cobalt disc magnets perform extremely well in high temperatures. SmCo magnetic discs are very strong magnets & are available in different sizes. They belong to the permanent rare earth magnet group. SmCo Cylinders and Blocks also in stock. Great volume discounts & Free Shipping over $40!Arc magnets are a specific type of magnet that has a curved shape, and they are commonly used in motors and generators to provide a continuous, rotating magnetic field. SmCo arc magnets have a high…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 ... Arc magnets are a specific type of magnet that has a curved shape, and they are commonly used in motors and generators to provide a continuous, rotating magnetic field. SmCo arc magnets have a high…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 ...Methodology. Request Sample. Market Overview: The global samarium cobalt magnets …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 moreBonded Samarium Cobalt Magnets Flexural Strength Sm2Co17 σ N/mm 2 110 These magnets are specially made to customer specified dimensions. Compressive strength Sm1Co5 σ N/mm 2 650 There may be a tooling fee and also a magnetising coil fee (depends on magnetic pattern required). Compressive strength Sm2Co17 σ N/mm 2 800Samarium cobalt magnets are part of the rare earth family of magnets and have a …Turbo machinery. Travelling-wave tubes. Pump couplings. Sensors. Humid environments. …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 magnets can ... Samarium Cobalt Magnets (SmCo) Collectively known as Rare Earth magnets, Samarium Cobalt (SmCo) and Neodymium Iron Boron (NdFeB) magnets are alloys of the Lanthanide group of elements. Rare Earth magnets are the most advanced commercialized permanent magnet materials today. SmCo magnets are available in a number of different grades that span a ... Samarium-cobalt magnet (Samarium-Cobalt Sm-Co) is one of the rare earth magnets with strong magnetic force and is resistant to heat.While neodymium magnets must be used at temperatures below 80 ° C, samarium-cobalt magnets are difficult to demagnetize even at high temperatures of 350 ° C and are resistant to rust, making them ideal for ...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.Group: Lanthanides: Melting point: 1072°C, 1962°F, 1345 K: Period: 6: Boiling point: 1794°C, 3261°F, 2067 K: ... The most important application of Samarium is in Samarium-Cobalt magnets which have a very high permanent magnetisation. ... It is used in making special infrared absorbing glass and cores of carbon arc lamp electrodes.Due to their thermal stability, samarium cobalt magnets are also ideal permanent magnets for aerospace, automotive, sensors, speakers, motors and military applications. Samarium cobalt magnets not only excel at high temperatures, but also maintain their magnetic properties even below absolute zero (-237 degrees Celsius), making them popular for …Samarium-145 and its use as a radiation source. DOEpatents. Fairchild, Ralph G.; Laster, Brenda H.; Packer, Samuel. 1989-01-01. The present invention covers a new radiation source, samarium-145, with radiation energies slightly above those of I-125 and a half-life of 340 days.The samarium-145 source is produced by neutron irradiation …Samarium is mainly used in preparing samarium-cobalt alloy magnets for electric guitars, small motors and headphones. Samarium-cobalt magnets are much more powerful than iron magnets. They remain magnetic at high temperatures and so are used in microwave applications. They enabled the miniaturisation of electronic devices.This chapter reviews the development of SmCo-type magnets over the last …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 oxide is used in glass and ceramics [1]. It finds application in carbon arc lighting for studio projection and lighting [1]. Samarium 149 is used in the control rods of nuclear reactors as a fission product poison [8, 17]. It is used as a reducing agent in Barbier reaction of carbonyl compounds and Grignard-type reactions [10, 12, 14]. May 19, 2023 · The second generation of 2:17-type samarium-cobalt rare earth permanent magnets represented by Sm(Co, Cu, Fe, Zr) z (z = 6–8) appeared in the 1970s. The third generation of rare earth permanent magnets represented by neodymium-iron-boron (Nd-Fe-B) was developed in the early 1980s. May 19, 2023 · The second generation of 2:17-type samarium-cobalt rare earth permanent magnets represented by Sm(Co, Cu, Fe, Zr) z (z = 6–8) appeared in the 1970s. The third generation of rare earth permanent magnets represented by neodymium-iron-boron (Nd-Fe-B) was developed in the early 1980s. Alliance S-32 Samarium Cobalt Magnetic Material. Available Properties. Density. …Alliance S-32 Samarium Cobalt Magnetic Material. Available Properties. Density. …Magnets and lights . Another outlet for samarium is in permanent magnets, where its alloy with cobalt produces magnets that are not only 10,000 times more powerful than iron magnets, but have the highest resistance to demagnetisation of any known material. These magnets have allowed the miniaturisation of devices such as motors …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 …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 disc magnets perform extremely well in high temperatures. SmCo magnetic discs are very strong magnets & are available in different sizes. They belong to the permanent rare earth magnet group. SmCo Cylinders and Blocks also in stock. Great volume discounts & Free Shipping over $40!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 ... May 23, 2018 · samarium (symbol Sm) Grey-white, metallic element of the lanthanide series (rare-earth metals). First identified spectroscopically in 1879 by French chemist Paul Lacoq de Boisbaudran (1838–1912), its chief ores are monazite and bastnasite. Samarium is used in carbon-arc lamps, as a neutron absorber in nuclear reactors, and as a catalyst. Some ... Samarium (atomic symbol: Sm, atomic number: 62) is a Block F, Group 3, Period 6 element with an atomic radius of 150.36. 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 a Van der Waals radius of 229 pm.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 …Samarium Cobalt Magnets (SmCo) Collectively known as Rare Earth magnets, Samarium Cobalt (SmCo) and Neodymium Iron Boron (NdFeB) magnets are alloys of the Lanthanide group of elements. Rare Earth magnets are the most advanced commercialized permanent magnet materials today. SmCo magnets are available in a number of different grades that span a ... Beilun Meank supplys rare earth samarium cobalt (SmCo) arc magnets for motors where neodymium arc magnets can not work. Some of SmCo arc magnets are finished with a triple coating of nickel, copper and nickel when they are used in acidic and high moisture environment. Just let us know what sizes of samarium cobalt (SmCo) arc magnets you …Samarium-cobalt magnet (Samarium-Cobalt Sm-Co) is one of the rare earth magnets with strong magnetic force and is resistant to heat.While neodymium magnets must be used at temperatures below 80 ° C, samarium-cobalt magnets are difficult to demagnetize even at high temperatures of 350 ° C and are resistant to rust, making them ideal for ...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 ... 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. Introduction. Samarium cobalt magnets are permanent magnets. They are one of the rare-earth magnets and are typically made from Samarium and Cobalt. In the production of this magnet, the Samarium portion can …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 ...Since the introduction of rare earth magnets in the 1970s, Electron Energy Corporation (EEC) has been the preferred source for manufacturing and supplying samarium cobalt magnets (SmCo). EEC’s SmCo 34 grade material is one of the highest performance materials available, ideal across a range of applications, from biomedical equipment to ...Samarium Cobalt Magnets. 1: 5 type and 2:17 type sintered Samarium Cobalt magnets are called as the first generation and second generation of rare earth permanent magnets. 2:17 type is developed based on 1:5 type. Neodymium magnets dominated the market of rare earth permanent magnets since its inception and then Samarium Cobalt magnets …SmCo magnets (also called Samarium Cobalt magnets) are consist of Sm (samarium), Co (cobalt) and other elements like Hf(hafnium) or Zr(zirconium), they are part of permanent rare earth magnet family, there are two main types, the composition of SmCo5 is: samarium 37% and cobalt 63%, while Sm2Co17 is: samarium 25%, copper 5%, iron 18%, hafnium …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 …Samarium-cobalt magnets are quite brittle so they are often covered with a protective layer of nickel. Samarium- cobalt magnets are 2-3 times more expensive than neodymium magnets and nearly as ...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 ... Grade: Br: Hcb: Hcj (BH)max: mT: Gs: kA/m: Oe: kA/m: Oe: kJ/m3: MGOe: XG16: 770-860: 7700-8600: 613-716: 7700-9000: ≥1194: ≥15000: 120-143: 15-18: XG16H: 770-860: ...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: ...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 …RECOMA® 35E – The World’s Most Power Dense Samarium Cobalt Magnet Material. RECOMA® 35E Samarium Cobalt is the most power dense samarium cobalt magnet material available, specifically created for the most demanding applications, including high speed, high temperature and highly corrosive environments.As the market leader in high …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 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 Magnets. 1: 5 type and 2:17 type sintered Samarium Cobalt magnets are called as the first generation and second generation of rare earth permanent magnets. 2:17 type is developed based on 1:5 type. Neodymium magnets dominated the market of rare earth permanent magnets since its inception and then Samarium Cobalt magnets …Methodology. Request Sample. Market Overview: The North America samarium cobalt …According to the latest report by IMARC Group, titled "North America Samarium Cobalt Magnets Market: Industry Trends, Share, Size, Growth, Opportunity and Forecast 2023-2028," the North America samarium cobalt magnets market size reached 454.1 Tons in 2022.Samarium cobalt (SmCo) magnets are rare earth magnets …magnets with high application temperatures, positive tem-perature coefficients of coercive force, zero temperature coefficients of residual magnetization, high resistance rate, high mechanical property, and nanocrystallization. Keywords Samarium–cobalt rare-earth permanent magnet; Magnetic; Temperature coefficient; Resistivity 1 ... Considerable interest has been centered around rare-earth-cobalt magnets during recent years. For the last two years we have been carrying out a research program in the general area of rare-earth-cobalt magnets. At this time, we have successfully developed a rare-earth-cobalt magnet with close to the attainable limit of magnetic properties. Our best …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 …Samarium 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 ... 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 ... Zhaobao is one of the most professional samarium cobalt manufacturers and suppliers in China, ... Samarium Cobalt Magnets. Product Name: SmCo Magnets Size: Customized ... Arc SmCo Magnet Samarium Cobalt. Shape: Tile MOQ: According to …According to the latest report by IMARC Group, titled "Samarium Cobalt …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.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).We're professional strong arc samarium cobalt magnet manufacturers and suppliers in China, specialized in providing customized permanent magnet products with competitive price. We warmly welcome you to buy or wholesale strong arc samarium cobalt magnet for sale here from our factory. Also, custom service is available.2. Samarium cobalt rare earth magnets will withstand high temperatures without demagnetizing, while care must be used when utilizing neodymium above ambient room temperatures. 3. Neodymium iron boron rare earth magnets are moderately priced and offer a good value when compared to performance. Samarium cobalt magnets are …Samarium cobalt or SmCo magnets have the highest working temperature of all …More information: Bhaskar Das et al. Anisotropy and orbital moment in Sm-Co permanent magnets, Physical Review B (2019).DOI: 10.1103/PhysRevB.100.024419In recent years, samarium–cobalt magnets have been overshadowed by neodymium–iron–boron magnets although they are still used in microwave applications because they retain their magnetism to …Samarium Cobalt Countersunk Disc Magnet - 13/16 in. dia x 3/8 in. thick x 3/16 in. hole - 15.65lbs Pull (North) F314NS-SC. From $7.14. View. Discover the power of Samarium Cobalt magnets. Shop for the highest quality magnets for any application from FIRST4MAGNETS. We also offer free shipping orders! View Product Detail. Samarium Cobalt (or SmCo) magnets are strong permanent magnets made of an alloy of samarium and cobalt. They are known for their high magnetic strength, exceptional temperature resistance, and reliable performance without oxidation protection. As a result, they are more suitable for certain applications than Neodymium …SmCo is a widely used second-generation high energy material. Using Samarium and cobalt as its rare earth element, it exhibits high magnetic performance characteristics in energy products and coercive force. There are two compositions of magnets in this family: Sm1Co5 and Sm2Co17. The highest commercially available energy products of …Mar 1, 2021 · For instance, the global warming potential (GWP) per kilogram of the samarium-cobalt magnet is approximately 1.5 times that of the neodymium (NdFeB) permanent magnet (Bailey et al., 2021). Consequently, more advanced technologies should be incubated throughout the whole samarium life cycle so that the total environmental impacts can be mitigated. 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.Click Picture For Full Description and Wholesale Quantity Price Break Discounts. SmCo Magnets 1/2 in x 1/4 in x 1/8 in Samarium Cobalt Block Magnet. Model: SMCO-B1. $1.40. Add To Cart. Click Picture For Full Description and Wholesale Quantity Price Break Discounts. SmCo Magnets 1/2 in x 1/2 in x 1/4 in Samarium Cobalt Block.

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samarium cobalt magnets arc group.jpeg

Click Picture For Full Description and Wholesale Quantity Price Break Discounts. SmCo Magnets 1/2 in x 1/4 in x 1/8 in Samarium Cobalt Block Magnet. Model: SMCO-B1. $1.40. Add To Cart. Click Picture For Full Description and Wholesale Quantity Price Break Discounts. SmCo Magnets 1/2 in x 1/2 in x 1/4 in Samarium Cobalt Block.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 ...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 ... 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: ...Known as SmCo magnets, samarium cobalt magnets are part of the rare-earth family of permanent magnets along with neodymium magnets. Whilst they aren’t as strong as neodymium magnets, they have two distinct advantages over their neodymium cousins. They are effective over a higher range of temperatures and are much more resistant to corrosion. Introduction. Samarium cobalt magnets are permanent magnets. They are one of the rare-earth magnets and are typically made from Samarium and Cobalt. In the production of this magnet, the Samarium portion can …Zhaobao is one of the most professional samarium cobalt manufacturers and suppliers in China, ... Samarium Cobalt Magnets. Product Name: SmCo Magnets Size: Customized ... Arc SmCo Magnet Samarium Cobalt. Shape: Tile MOQ: According to …Samarium oxide is used in glass and ceramics [1]. It finds application in carbon arc lighting for studio projection and lighting [1]. Samarium 149 is used in the control rods of nuclear reactors as a fission product poison [8, 17]. It is used as a reducing agent in Barbier reaction of carbonyl compounds and Grignard-type reactions [10, 12, 14]. 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 is fairly abundant in the earth’s crust and has seven naturally-occurring …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 ... .

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