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中文简体 In the early 1980s, General Motors and Sumitomo Special Metals invented the neodymium magnet. The companies discovered that by combining neodymium with small amounts of iron and boron, they could produce powerful magnets. General Motors and Sumitomo Special Metals subsequently released the world's first neodymium magnets, providing a cost-effective alternative to other rare earth magnets on the market.
How do neodymium magnets compare to ceramic magnets? Ceramic magnets are undoubtedly cheaper, making them a popular choice for consumer applications. However, for commercial applications, neodymium magnets are irreplaceable. As mentioned earlier, neodymium magnets can generate fields of up to 1.4 Tesla. In contrast, ceramic magnets typically produce a magnetic field of only 0.5 to 1 Tesla.
Neodymium magnets are not only magnetically stronger than ceramic magnets; they are also harder. Ceramic magnets are fragile and easily damaged. If you drop a ceramic magnet, it will likely shatter. Neodymium magnets, on the other hand, are physically harder, so they're less likely to break if dropped or otherwise stressed.
On the other hand, ceramic magnets are more corrosion resistant than neodymium magnets. Ceramic magnets generally do not corrode or rust, even with regular exposure to moisture.
