Mar Cobalt And Ndfeb Magnet Price
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Mar cobalt magnets (SaCo) came out in the 1970s, and since then they have been widely used in various applications. Although the strength of not magnets is not as strong as neodymium magnets (– the BHmax of cobalt magnets is usually about 26), the advantage of these magnets is that they could withstand higher temperatures than neodymium magnets. The maximum temperature of mar cobalt magnets is 300 degrees Celsius, and the maximum yield strength could reach 750 degrees Celsius. Their relative strength and ability to withstand extreme high temperatures make them ideal for high-temperature applications. Unlike neodymium magnets, sa cobalt magnets have good corrosion resistance. Compared with neodymium magnets, their Ndfeb Magnet Price are also more expensive.
Ceramic
Ceramic magnets are made of barium ferrite or strontium and have a longer service life than rare earth magnets. They were first used in the 1960s. Ceramic magnets are generally cheaper than rare earth magnets, but their strength is not as strong as rare earth magnets. Typical BHmax is about 3.5-about one-tenth or less of neodymium or sa cobalt magnets.
Regarding heat, the maximum temperature (Tmax) of ceramic magnets is 300 degrees Celsius, just like sa magnets, the maximum temperature of Tcurie is 460 degrees Celsius. Ceramic magnets are highly resistant to corrosion and usually do not require any protective coating. They are easy to magnetize and are cheaper than neodymium or sa cobalt magnets. However, ceramic magnets are very fragile, so they are not good choices for applications where flexure or stress is high. Ceramic magnets are commonly used in classroom demonstrations and weak industrial and commercial applications, such as low-level generators or turbines. They could also be used in household applications and the production of magnetic plates and signs.