This calculator estimates the attractive force in (lbf) between Samarium Cobalt magnet in direct contact with a flat, sufficiently thick, steel work-piece. The magnet is considered to be magnetized / oriented in the “thickness” direction. Samarium Cobalt Magnetic Pull Force Calculator Step 1: Select Magnetic Shape. . Cobalt, as one of the three naturally ferromagnetic elements, has played a crucial role in the development of magnetic materials. And remains, today, essential to some of the highest performing materials – both soft and hard. Our World Touches Your. Cobalt-based Magnetic Nanoparticles: Design, Synthesis and Characterization. Mehdi Zamanpour. The College of Engineering. In partial fulfillment of the requirements. For the degree of. Doctor of Philosophy. In the field of. Interdisciplinary Studies. Northeastern University. March 24th, 2014. Samarium Cobalt (SmCo) is a type of rare earth magnet material that is highly resistant to oxidation, with a higher magnetic strength and temperature resistance than AlNiCo or Ceramic material. These magnets offer the best temperature characteristics of all rare earth magnets and can withstand temperatures up to 300° C. Due to the high cost of. 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.

Sintered SmCo magnets, i.e. sintered samarium cobalt magnets, are those permanent magnetic materials that based on a hexagonal crystal structure (1:5 type SmCo magnets) or a rhombohedral crystal structure (2:17 type SmCo magnets), and they are manufactured through a powder metallurgy process. They contain two basic elements samarium and cobalt. The samarium element can be substituted by a portion of other rare earth elements including praseodymium (Pr), cerium (Ce), gadolinium (Gd), erbium (Er), etc. The cobalt element can be substituted by a portion of iron (Fe) element to increase the magnets’ saturation magnetization (M_s). In order to control the microstructure and the microchemistry so as to meet required performance, it is also critical to add a small portion of copper (Cu), zirconium (Zr), titanium (Ti), etc. According to crystal structure, samarium cobalt magnets include SmCo₅ magnets (1st generation of REPMs) and Sm₂Co₁₇ magnets (2nd generation of REPMs). They were invented/developed by K. Strnat’s team in the 1960s and T. Ojima’s team in the 1970s, respectively. Due to their high Curie temperature (T_c: 700-850 ºC), middle high maximum energy product ((BH)_max: 110-260 kJ/m³), low temperature coefficients of remanence (α(B_r): +0.01 to -0.05 %/°C) and coercivity (β(H_cj): -0.2 to -0.3 %/°C) and high corrosion resistance, sintered SmCo magnets are mainly applied in high temperature motors, servo motors, stepper/stepping motors, traveling wave tubes (TWTs), circulators, isolators, klystrons, undulators, gyroscopes, accelerometers, instruments and meters, etc.

Sintered SmCo Magnets’ Grades and Their Magnetic Properties

Cobalt Magnetic Air Vent Mount

Note:
∗ The data in the above table were samples’ results tested at the temperature of 20 °C.
∗ The prefixes XGS and XG are for Sm₂Co₁₇ and SmCo₅ magnets, respectively.
∗ The typical temperature coefficients of B_r and H_cj are α(B_r): -0.03~-0.05 %/ºC and β(H_cj): -0.20~-0.30 %/ºC, respectively.
∗ The suffix LT means low/near-zero temperature coefficient of B_r (α(B_r): +0.01 ~ -0.03 %/°C).
∗ The above data are only for reference, magnets can be tailored according to customers’ personalized requirements.

Sintered SmCo Magnets’ shapes, Magnetization Direction and Size Range

Cobalt Magnetic Moment

Note:
∗ Other shapes of sintered SmCo magnets can also be tailored according to customers’ specific requirements.

Because of strong corrosion resistance, sintered SmCo magnets usually do not need any coating. Afloat mac downloaddownzup. If any coating is required, nickel, zinc, tin, epoxy, Teflon and other types are available.

Some Physical Properties of Sintered SmCo Magnets

Note:
∗ The above data are only for reference, specific magnets maybe have different values.

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Samarium Cobalt (SmCo) is a type of rare earth magnet material that is highly resistant to oxidation, with a higher magnetic strength and temperature resistance than AlNiCo or Ceramic material. These magnets offer the best temperature characteristics of all rare earth magnets and can withstand temperatures up to 300° C. Due to the high cost of the material Samarium, SmCo magnets are used for applications where high temperature and corrosion resistance are critical. 2.1 average rate of changeap calculus.